# Step Down Modules

> DC-DC step down modules (LM2596, XL4015, XL4005, AMS1117), fixed or adjustable, with or without display, CC-CV

- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Category page: https://sigmanortec.ro/en/step-down-modules
- Category: Electronic components > Step Down Modules
- Prices: RON, VAT included; prices and stock as of 2026-10-22 01:32 (Europe/Bucharest)

## Products (36)

### Adjustable step-down module LM2596 DC-DC 4.5-40V 3A
- Page: https://sigmanortec.ro/en/adjustable-step-down-module-lm2596-dc-dc-45-40v-3a
- Details: https://sigmanortec.ro/en/llms/p/355.md
- Price: 6.64 RON
- Availability: In stock; 1-2 zile
- Reference: 33060 · EAN: 5949672084473
- Specifications: tension: AD; Supply Voltage: 3; Maximum Input Voltage: 40; Minimum Output Voltage: 1; Maximum Output Voltage: 35; Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 3; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

Adjustable step-down converter for stable power supplies in electronic, industrial or automotive projects, accepts 4.5-40V at input and delivers 1.25-35V finely adjustable with multi-turn potentiometer, up to 3A with adequate cooling, high efficiency up to 92% and LED operating indicator, maintains constant output voltage with input variations.
Step Down DC-DC Module 4.5 - 40V 3A, LM2596S, adjustable. This is a buck converter capable of loads up to 3A, with continuous current adjustable via the multiturn potentiometer. Considering that this potentiometer has a 25-turn range, the fine adjustment of the output voltage can be precisely regulated.

### AMS1117 3.3V step-down module
- Page: https://sigmanortec.ro/en/ams1117-33v-step-down-module
- Details: https://sigmanortec.ro/en/llms/p/356.md
- Price: 3.69 RON
- Availability: In stock; 1-2 zile
- Reference: 33069 · EAN: 5946361598891
- Specifications: tension: AD; Supply Voltage: 4; Maximum Input Voltage: 10; Minimum Output Voltage: 3; Maximum Output Voltage: 3; Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Not; Adjustment Type: Fixed; Maximum Output Current: 0.8; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

Step-down module with AMS1117-3.3, reduces voltage from 5V to 3.3V. Input voltage 4.2-10V DC, fixed output 3.3V DC, maximum output current 0.8A. Dimensions 8.6 x 12.3 mm. Useful for powering sensors and logic modules at 3.3V, integrates into projects with Arduino, ESP and other electronic circuits.

### Voltage step-down module with LCD, adjustable 0-16V
- Page: https://sigmanortec.ro/en/voltage-step-down-module-with-lcd-adjustable-0-16v
- Details: https://sigmanortec.ro/en/llms/p/357.md
- Price: 45.29 RON
- Availability: In stock; 1-2 zile
- Reference: 33380 · EAN: 5942996715719
- Specifications: tension: AD; Supply Voltage: 5; Maximum Input Voltage: 23; Minimum Output Voltage: 0; Maximum Output Voltage: 16; Source Type: Automatic; Current Adjustment: Not; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 3; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

DC-DC step-down converter with LCD display, ideal for powering electronic projects and charging batteries with stabilized voltage and current. Offers fine adjustment of the output 0-16.5V from 5-23V, quick two-button control, real-time measurement of voltage and current on the LCD, high efficiency up to 95% and maximum current 3A with adequate cooling.
Automatic step-down DC-DC voltage source module, adjustable voltage, with an LCD display showing the voltage and the consumed current.
The output voltage is adjusted using the two buttons located on the board.

### Adjustable voltage step-down module with display LM2596, 4-40V
- Page: https://sigmanortec.ro/en/adjustable-voltage-step-down-module-with-display-lm2596-4-40v
- Details: https://sigmanortec.ro/en/llms/p/358.md
- Price: 15.19 RON
- Availability: In stock; 1-2 zile
- Reference: 33067 · EAN: 5943506194789
- Specifications: tension: AD; Supply Voltage: 4; Maximum Input Voltage: 40; Minimum Output Voltage: 1; Maximum Output Voltage: 37; Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 3

Adjustable DC-DC step-down module with LM2596 and display for voltage monitoring. Input voltage 4-40V, adjustable output voltage 1.3-37V. Output current 2A, maximum 3A only with active cooling. Voltmeter resolution +-0.1V, range 0-45V. Dimensions 65 x 35 mm. Suitable for powering electronic projects and DIY setups.

### Adjustable step-down module LM2576HV DC-DC 5-60V to 1.25-26V
- Page: https://sigmanortec.ro/en/adjustable-step-down-module-lm2576hv-dc-dc-5-60v-to-125-26v
- Details: https://sigmanortec.ro/en/llms/p/359.md
- Price: 22.69 RON
- Availability: Out of stock
- Reference: R-33068 · EAN: 5945030705950
- Specifications: tension: AD; Supply Voltage: 5; Maximum Input Voltage: 60; Minimum Output Voltage: 1; Maximum Output Voltage: 26; Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 3

Step-down DC-DC module based on the LM2576HV, with adjustable output of 1.25-26V and input of 5-60V (recommended under 50V). Maximum output current 3A, continuous operating current about 1.2A (total output under 20W). Suitable for providing stable power to electronic projects and industrial equipment requiring conversion of a higher DC voltage to a lower, adjustable value.

### Adjustable or fixed voltage step-down module, DC 5-15V, 3A
- Page: https://sigmanortec.ro/en/adjustable-or-fixed-voltage-step-down-module-dc-5-15v-3a
- Details: https://sigmanortec.ro/en/llms/p/360.md
- Price: 6.76 RON
- Availability: In stock; 1-2 zile
- Reference: 33330 · EAN: 5945584896845
- Specifications: tension: AD; Supply Voltage: 5; Minimum Output Voltage: 1; Maximum Output Voltage: 15; Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Yes; Adjustment Type: Variable or Fixed; Maximum Output Current: 1.5

DC-DC step-down module, reference 33330, with input 5-15VDC and fixed output (1.8V, 2.5V, 3.3V, 5V, 9V, 12V) or adjustable 0.8-15VDC via potentiometer (default ADJ mode). Fixed voltage is selected by bridging the corresponding pads. Supports up to 3A, recommended under 1.5A. Dimensions: 20 x 10.8 x 4.6 mm.

### Step-down module, CC-CV, XL4015, 1.25-36VDC, 0-5A, 75W
- Page: https://sigmanortec.ro/en/step-down-module-cc-cv-xl4015-125-36vdc-0-5a-75w
- Details: https://sigmanortec.ro/en/llms/p/361.md
- Price: 16.70 RON
- Availability: In stock; 1-2 zile
- Reference: 33502 · EAN: 5947296397498
- Specifications: tension: AD; Power: Over 20W; Maximum Input Voltage: 38; Minimum Output Voltage: 1; Maximum Output Voltage: 36; Source Type: descend; Current Adjustment: Yes; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 5

Step-down CC-CV module based on XL4015, with input voltage 6-38VDC and adjustable output 1.25-36VDC, current 0-5A, maximum power 75W. Features voltage and current regulation, thermal protection and short-circuit protection, but no reverse polarity protection on input. Suitable for Li-ion, Ni-Mh battery chargers or constant current LED power supply. Dimensions: 61.7 x 26.2 x 15mm.

### XL4005 step-down module, 4-36VDC, 5A, 75W
- Page: https://sigmanortec.ro/en/xl4005-step-down-module-4-36vdc-5a-75w
- Details: https://sigmanortec.ro/en/llms/p/362.md
- Price: 15.55 RON
- Availability: In stock; 1-2 zile
- Reference: 33581 · EAN: 5946178609650
- Specifications: tension: AD; Power: Over 20W; Supply Voltage: 4; Maximum Input Voltage: 36; Minimum Output Voltage: 1; Maximum Output Voltage: 32; Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 5

XL4005 DC-DC step-down module with input voltage 4-36VDC and output voltage adjustable 1.25-32VDC via potentiometer. Maximum current 5A, maximum power 75W, switching frequency 180kHz. Voltage regulation only, no current regulation. Suitable for electronic projects, automation and industrial equipment; for loads above 50W proper cooling is recommended.

### Voltage step-down module XL4015, 5-36VDC, 5A, 75W, with display
- Page: https://sigmanortec.ro/en/voltage-step-down-module-xl4015-5-36vdc-5a-75w-with-display
- Details: https://sigmanortec.ro/en/llms/p/363.md
- Price: 23.38 RON
- Availability: Out of stock
- Reference: 33328 · EAN: 5941222174535
- Specifications: tension: AD; Power: Over 20W; Supply Voltage: 5; Maximum Input Voltage: 36; Minimum Output Voltage: 1; Maximum Output Voltage: 32; Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 5

DC-DC step-down voltage module XL4015 (HW-316E V4.0), with input voltage 5-36VDC and output voltage adjustable via potentiometer from 1.25-32VDC, maximum current 5A, power 75W. It features a display that switches between input and output voltage readings, with a calibration function, and comes with a heatsink and spacers for mounting.

### XL4015 step-down module, 8-36VDC, 5A, 75W
- Page: https://sigmanortec.ro/en/xl4015-step-down-module-8-36vdc-5a-75w
- Details: https://sigmanortec.ro/en/llms/p/364.md
- Price: 9.96 RON
- Availability: Out of stock
- Reference: 33329 · EAN: 5949496410250
- Specifications: tension: AD; Power: Over 20W; Supply Voltage: 8; Maximum Input Voltage: 36; Minimum Output Voltage: 1; Maximum Output Voltage: 32; Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 5

DC-DC step-down module based on the XL4015 chip. Input voltage 8-36VDC, output voltage adjustable via potentiometer from 1.25-32VDC, maximum current 5A, power 75W. Efficiency up to 96%, switching frequency 180KHz. Includes a power indicator LED, short-circuit protection (8A) and automatic thermal protection. No reverse-polarity protection. VIN (input) and VOUT (output) terminals.

### Adjustable step-down power supply module, 100W, 12A, 0.8-30V
- Page: https://sigmanortec.ro/en/adjustable-step-down-power-supply-module-100w-12a-08-30v
- Details: https://sigmanortec.ro/en/llms/p/449.md
- Price: 27.41 RON
- Availability: In stock; 1-2 zile
- Reference: 33332 · EAN: 5946965902254
- Specifications: tension: AD; Power: Over 20W; Supply Voltage: 5; Maximum Input Voltage: 30; Minimum Output Voltage: 1; Maximum Output Voltage: 30; Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 12

Adjustable step-down power supply module based on the XL4016 IC, with input voltage 5-30VDC and output adjustable 0.8-30VDC via potentiometer. Maximum current 12A (peak), recommended continuous 8A, maximum power 100W, efficiency up to 95%. Operating frequency 300KHz, short-circuit protection (14A limit) and overheat protection, no reverse polarity protection. Pads for fan activation with input/output voltage selection. Dimensions 60 x 51mm.

### Step-down power supply module, adjustable, 150W, 6A, 7-32V
- Page: https://sigmanortec.ro/en/step-down-power-supply-module-adjustable-150w-6a-7-32v
- Details: https://sigmanortec.ro/en/llms/p/450.md
- Price: 27.56 RON
- Availability: In stock; 1-2 zile
- Reference: 33462 · EAN: 5940471409719
- Specifications: tension: AD; Power: Over 20W; Supply Voltage: 7; Maximum Input Voltage: 32; Minimum Output Voltage: 1; Maximum Output Voltage: 28; Source Type: descend; Current Adjustment: Yes; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 8

Adjustable step-down power supply module (XL4016), input 7-32V DC, output 0.8-28V DC, output current 0.2-6A, maximum power 150W, efficiency up to 95%. Fine voltage and current adjustment via two potentiometers, short-circuit protection on output, operating frequency 300KHz, dimensions 65 x 47 x 22mm. Two-color LED indicator for charging status. Suitable for battery charging, LED driver or lab power supply.

### LM2596 Buck Module, load sensing, 1-30VDC, 3A
- Page: https://sigmanortec.ro/en/lm2596-buck-module-load-sensing-1-30vdc-3a
- Details: https://sigmanortec.ro/en/llms/p/1406.md
- Price: 8.36 RON
- Availability: In stock; 1-2 zile
- Reference: 9300 · EAN: 5949130310281
- Specifications: tension: AD; Supply Voltage: 7; Maximum Input Voltage: 35; Minimum Output Voltage: 1; Maximum Output Voltage: 30; Source Type: descend; Current Adjustment: Yes; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 3

DC-DC step-down converter with LM2596 for power supply and battery charging, reduces 7-35V to 1.25-30V adjustable with constant voltage and current control. Offers up to 3A peak, high efficiency, low ripple and includes end-of-charge detection function by current drop, signaled by OK LED. Compact dimensions for quick integration.
Voltage step-down module with current and constant voltage (CV and DC), DC-DC, which reduces the input voltage from 7-35VDC to an adjustable range between 1.25 and 30VDC.
The maximum current supports a peak of 3A.

### Automatic power supply module, step-down, 5.5-30V to 0-30V, 30W
- Page: https://sigmanortec.ro/en/automatic-power-supply-module-step-down-55-30v-to-0-30v-30w
- Details: https://sigmanortec.ro/en/llms/p/1525.md
- Price: 22.30 RON
- Availability: In stock; 1-2 zile
- Reference: 9418 · EAN: 5949826333693
- Specifications: tension: AD; Power: Over 20W; Supply Voltage: 5; Minimum Output Voltage: 1; Maximum Output Voltage: 30; Source Type: descend, high, Automatic; Current Adjustment: Not; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 4

Automatic step-up-down DC-DC converter for stable power supplies, maintains the set voltage regardless of input variations, for example 12V constant at input between 5.5 and 30V. Offers adjustable output 0.5-30V, up to 30W and 3A in continuous mode, efficiency approx. 88% at 180KHz, rectification with double Schottky diodes SS56 and short-circuit protection.
The automatic voltage source module that works both as a voltage raiser and as a voltage reducer, in the 0.5-30VDC range.
It uses double Schottky diodes SS56, 60V 5A for rectification and has the advantage of keeping the output voltage regardless of the input voltage variations.

### Voltage step-down module 400W, 10-60VDC, CC-CV, 15A
- Page: https://sigmanortec.ro/en/voltage-step-down-module-400w-10-60vdc-cc-cv-15a
- Details: https://sigmanortec.ro/en/llms/p/1537.md
- Price: 77.62 RON
- Availability: In stock; 1-2 zile
- Reference: 9427 · EAN: 5948970445061
- Specifications: tension: AD; Power: Over 20W; Maximum Input Voltage: 60; Minimum Output Voltage: 0; Maximum Output Voltage: 45; Source Type: descend; Current Adjustment: Yes; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 15; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

DC-DC step-down module with 10-60VDC input and continuously adjustable 0-45VDC output, CC-CV operation, adjustable current 0.2-15A. Maximum power 400W with active cooling, efficiency up to 97%. Includes short-circuit protection, reverse polarity protection (15A fuse), and CC mode LED indicator. Dimensions: 60 x 60 x 45mm.

### Automatic voltage source module, panel, ZK-4KX, DC-DC, 0.5-30V, 4A, CC-CV, with display
- Page: https://sigmanortec.ro/en/automatic-voltage-source-module-panel-zk-4kx-dc-dc-05-30v-4a-cc-cv-with-display
- Details: https://sigmanortec.ro/en/llms/p/1544.md
- Price: 78.14 RON
- Availability: In stock; 1-2 zile
- Reference: 9434 · EAN: 5940571325513
- Specifications: Minimum Output Voltage: 0.5; Maximum Output Voltage: 30; Source Type: Automatic; Current Adjustment: Yes; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 4; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Model: ZK-4KX

DC-DC panel module for creating an adjustable source with automatic stabilization, offers 0.5-30V output and up to 4A in CC-CV mode, includes backlit LCD display and encoder for fine adjustment, integrates protection and soft start functions for safe power supplies, suitable for laboratory applications, DIY projects and low-power photovoltaic systems.
DC-DC step-down-boost power supply module, from 5-30VDC to 0.5-30VDC, with a maximum power of 35W with natural cooling or up to 50W with active cooling.

### Voltage step-down module, XL4015, 5-30V to 0.8-29V, 5A, CC-CV
- Page: https://sigmanortec.ro/en/voltage-step-down-module-xl4015-5-30v-to-08-29v-5a-cc-cv
- Details: https://sigmanortec.ro/en/llms/p/1547.md
- Price: 45.68 RON
- Availability: In stock; 1-2 zile
- Reference: 9437 · EAN: 5941879152269
- Specifications: tension: AD; Supply Voltage: 5; Maximum Input Voltage: 30; Minimum Output Voltage: 1; Maximum Output Voltage: 29; Source Type: descend; Current Adjustment: Yes; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 5; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

Buck converter with XL4015 for adjustable power supplies and battery charging, offers CC-CV mode with fine adjustment of voltage and current via multiturn potentiometers, 5-30V input and 0.8-29V output, up to 5A with cooling, includes integrated voltage and current displays, high efficiency for LED, DIY and automation applications.
Voltage lowering module with XL4015 with constant voltage and current adjustable through the related multi-turn potentiometers. The voltage difference between input and output is at least 0.2VDC.
The module has two displays for voltage and current. Depending on the batch, their color may or may not be different.

### WZ5005E-USB step-down voltage module for panel, color LCD, CC-CV, 6–55V to 0–50V, 5A, 250W
- Page: https://sigmanortec.ro/en/panel-voltage-step-down-module-color-lcd-cc-cv-6-55v-to-0-50v-usb-port-5a-250w
- Details: https://sigmanortec.ro/en/llms/p/1555.md
- Price: 254.52 RON
- Availability: In stock; 1-2 zile
- Reference: 9442 · EAN: 5944931649356
- Specifications: tension: AD; Power: Over 20W; Supply Voltage: 6; Maximum Input Voltage: 55; Minimum Output Voltage: 0; Maximum Output Voltage: 50; Source Type: descend; Current Adjustment: Yes; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 5; Maximum Controlled Power: 250 W; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

Step-down voltage module for panel mounting, ideal as an adjustable CC-CV power supply in electronic projects and test benches. It offers a 0-50V and 0-5A output with up to 250W power, a 1.44-inch color LCD display for quick monitoring, control and serial interface via USB, and fine adjustment with 0.01V voltage resolution.
The WZ5005E-USB step-down voltage module is a DC-DC buck power supply with adjustable output in both constant voltage (CV) and constant current (CC) modes, intended for panel mounting or integration into custom equipment.

### Voltage step-down module, fixed, 14-80V to 12V, 0.85A, for E-Bike
- Page: https://sigmanortec.ro/en/voltage-step-down-module-fixed-14-80v-to-12v-085a-for-e-bike
- Details: https://sigmanortec.ro/en/llms/p/1647.md
- Price: 46.69 RON
- Availability: In stock; 1-2 zile
- Reference: 9532 · EAN: 5944966211986
- Specifications: tension: AD; Supply Voltage: 14; Maximum Input Voltage: 80; Minimum Output Voltage: 12; Maximum Output Voltage: 12; Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Not; Adjustment Type: Fixed; Maximum Output Current: 0.85

Step-down converter for powering 12V accessories on e-bikes, scooters or electric scooters, works with batteries between 14 and 80V and offers a fixed 12V output up to 0.75A. It ensures conversion efficiency up to 85% at 150kHz, has polarity, overvoltage and short circuit protection, and the connection is made quickly via screw terminal.
The voltage lowering module from a voltage up to 80VDC to a fixed voltage of 12VDC, usually used when you want to lower the voltage of the electric scooter or electric scooter battery to a fixed voltage of 12VDC.

### CNC power supply module, CC-CV, XY6020L, 1200W, 0-60VDC, 20A, step-down
- Page: https://sigmanortec.ro/en/cnc-power-supply-module-cc-cv-xy6020l-1200w-0-60vdc-20a-step-down
- Details: https://sigmanortec.ro/en/llms/p/1806.md
- Price: 236.92 RON
- Availability: In stock; 1-2 zile
- Reference: 9694 · EAN: 5944142991503
- Specifications: tension: AD; Power: Over 20W; Supply Voltage: 6; Maximum Input Voltage: 70; Minimum Output Voltage: 0; Maximum Output Voltage: 60; Source Type: descend; Current Adjustment: Yes; Voltage Adjustment: Yes; Adjustment Type: Variable or Fixed; Maximum Output Current: 20; Maximum Controlled Power: 1200 W; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

Step-down power supply module CC-CV XY6020L for CNC applications and automation. Input voltage 6-70VDC, adjustable output voltage 0-60VDC, maximum output current 20A, maximum power 1200W. LCD display for setting and monitoring voltage, current and power. Cooling via heatsink and fan. Protections against overvoltage, undervoltage, overcurrent, overtemperature and timeout.

### Step-down module, 4 outputs, 4.5-30V to 3.3V-5V-12V-ADJ
- Page: https://sigmanortec.ro/en/step-down-module-4-outputs-45-30v-to-33v-5v-12v-adj
- Details: https://sigmanortec.ro/en/llms/p/1862.md
- Price: 79.34 RON
- Availability: In stock; 1-2 zile
- Reference: 9738 · EAN: 5948631979416
- Specifications: tension: AD; Supply Voltage: 4; Maximum Input Voltage: 30; Minimum Output Voltage: 2; Maximum Output Voltage: 28; Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Yes; Adjustment Type: Variable or Fixed; Maximum Output Current: 3; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

DC-DC step-down module, model DD31AJQA, with 4 outputs: 3 fixed (3.3V, 5V, 12V) and one adjustable channel (2-28V). Input voltage 4.5-30VDC, maximum current 3A per channel, total power 50W, operating frequency 150KHz. Includes reverse polarity protection, current limiting and thermal shutdown. Operating temperature -40°C to +85°C. Dimensions 88x55x15mm.

### Synchronous step-down module, 9-30V to 5V, 5A, fixed
- Page: https://sigmanortec.ro/en/synchronous-step-down-module-9-30v-to-5v-5a-fixed
- Details: https://sigmanortec.ro/en/llms/p/1887.md
- Price: 21.02 RON
- Availability: Out of stock
- Reference: 9754 · EAN: 5943526219585
- Specifications: tension: AD; Supply Voltage: 9; Maximum Input Voltage: 30; Minimum Output Voltage: 5; Maximum Output Voltage: 5; Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Not; Adjustment Type: Fixed; Maximum Output Current: 5

Synchronous, non-isolated step-down (buck) module for input voltages of 9-30VDC (maximum limit 35V), delivers a fixed 5V output, maximum current 5A, power 25W. Conversion efficiency up to 95%, synchronous rectification, drop-out voltage 4V, input reverse polarity protection. Connection via 3 screw terminals, common GND for input/output. Dimensions: 45 x 30 x 15 mm.

### Voltage step-down module, multichannel, LM2596, 4-way, 3.3V, 5V, 12V, ADJ
- Page: https://sigmanortec.ro/en/voltage-step-down-module-multichannel-lm2596-4-way-33v-5v-12v-adj
- Details: https://sigmanortec.ro/en/llms/p/1916.md
- Price: 54.63 RON
- Availability: Out of stock
- Reference: 9774 · EAN: 5947371208909
- Specifications: tension: AD; Supply Voltage: 13; Maximum Input Voltage: 32; Minimum Output Voltage: 3; Maximum Output Voltage: 30; Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Yes; Adjustment Type: Variable or Fixed; Maximum Output Current: 3; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

Step-down voltage module with 4 independent LM2596 regulators powered from a single source. Input voltage 13-32VDC, fixed outputs 3.3V, 5V, 12V and one adjustable ADJ channel (1.2V-Vin-1V) via potentiometer. Maximum current 3A per channel, 5A total. Efficiency 85%, detachable screw terminals, general ON/OFF switch. Dimensions 101 x 68 x 12 mm.

### Voltage step-down module, 6-40V, CV-CC, 300W
- Page: https://sigmanortec.ro/en/voltage-step-down-module-6-40v-cv-cc-300w
- Details: https://sigmanortec.ro/en/llms/p/1920.md
- Price: 37.17 RON
- Availability: In stock; 1-2 zile
- Reference: 9744 · EAN: 5945803118147
- Specifications: tension: AD; Power: Over 20W; Supply Voltage: 6; Maximum Input Voltage: 40; Minimum Output Voltage: 1; Maximum Output Voltage: 36; Source Type: descend; Current Adjustment: Yes; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 20; Maximum Controlled Power: 300; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

DC-DC step-down converter with precise regulation in CV-CC mode, ideal for power supplies and electronic projects that require stable voltage and current limiting. It accepts 6-40V at input and provides 1.2-36V adjustable at output, up to 300W and 20A max. It has high efficiency, dual power MOSFET, screw terminals for quick connections and heat sinks for heat dissipation.
The voltage step-down module, with a capacity of up to 300W and 20A MAXIMUM ( recommended up to 15A ), designed to provide an efficient and precise regulation of voltage and current from an input voltage between 6V and 40VDC to a voltage of adjustable output between 1.2V and 36VDC.

### Step-down module, USB, 6-24V to 5V, 3A
- Page: https://sigmanortec.ro/en/step-down-module-usb-6-24v-to-5v-3a
- Details: https://sigmanortec.ro/en/llms/p/1983.md
- Price: 5.01 RON
- Availability: Out of stock
- Reference: 9799 · EAN: 5943583029615
- Specifications: tension: AD; Supply Voltage: 6; Maximum Input Voltage: 24; Minimum Output Voltage: 5; Maximum Output Voltage: 5; Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Not; Adjustment Type: Fixed; Maximum Output Current: 3; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

Synchronous buck converter with USB-A female output, steps down 6-24VDC to stable 5V for powering and charging mobile devices. Provides up to 2.1A constant and 3A peak, has high efficiency up to 97.5% and low ripple for clean voltage. Quickly connects on + and - pads, ideal for DIY powerbank, car, batteries or solar panels.
Synchronous voltage lowering module (buck converter), with USB-A Female plug, capable of lowering voltages in the 6-24VDC range to a fixed voltage of 5V with an output current of 3A.
The module is ideal for making a DIY Powerbank used to charge mobile devices.

### Step-down module, MP1584, 4.5-20V to 0.8-20V, adjustable, 3A
- Page: https://sigmanortec.ro/en/step-down-module-mp1584-45-20v-to-08-20v-adjustable-3a
- Details: https://sigmanortec.ro/en/llms/p/1986.md
- Price: 6.86 RON
- Availability: In stock; 1-2 zile
- Reference: 9802 · EAN: 5945933452920
- Specifications: tension: AD; Supply Voltage: 4; Maximum Input Voltage: 28; Minimum Output Voltage: 1; Maximum Output Voltage: 20; Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 3; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

Ultra-compact DC-DC buck converter for voltage reduction in DIY projects, drones, RC models and portable equipment, accepts 4.5-28V input and provides 0.8-20V adjustable via potentiometer, delivers up to 3A with high efficiency, fast switching for low ripple, dual connection pads on input and output for safe wiring.
Ultra-small DC-DC step-down (buck) module, ideal for DIY projects and applications where size and weight are essential, such as model airplanes or portable equipment.

### AMS1117 step-down module, 6-12V to 5V
- Page: https://sigmanortec.ro/en/ams1117-step-down-module-6-12v-to-5v
- Details: https://sigmanortec.ro/en/llms/p/2020.md
- Price: 5.07 RON
- Availability: In stock; 1-2 zile
- Reference: 9910 · EAN: 5944792932253
- Specifications: tension: AD; Supply Voltage: 6; Maximum Input Voltage: 12; Minimum Output Voltage: 5; Maximum Output Voltage: 5; Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Not; Adjustment Type: Fixed; Maximum Output Current: 0.8

Step-down module based on AMS1117, input 6-12VDC, fixed output 5.0VDC, maximum output current 0.8A (800mA). Features current limiting for protection and a red power indicator LED. Pin pitch 2.54 mm, dimensions 26 x 11mm. Above 500mA active cooling is required. Suitable for powering Arduino, Raspberry Pi and other electronic projects needing a stable 5V supply.

### Step-down module, XH-M401, 4-40V to 1.25-36V, 8A, 200W
- Page: https://sigmanortec.ro/en/step-down-module-xh-m401-4-40v-to-125-36v-8a-200w
- Details: https://sigmanortec.ro/en/llms/p/2022.md
- Price: 20.64 RON
- Availability: Out of stock
- Reference: 9831 · EAN: 5943612047474
- Specifications: tension: AD; Supply Voltage: 4; Maximum Input Voltage: 40; Minimum Output Voltage: 1; Maximum Output Voltage: 36; Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 8; Maximum Controlled Power: 200 W; Model: XH-M401

DC-DC buck converter for lowering the voltage from 4-40V to 1.25-36V, with fine adjustment from the potentiometer, capable of up to 8A and 200W. It offers efficiency up to 94% and stable operation at 180kHz, being suitable for powering electronic equipment and DIY projects. Includes overcurrent, overtemperature and short circuit protections for reliable use.
Step-down voltage module, DC-DC, XH-M401, which uses the XL4016E1 regulator chip, is a budget solution for applications that require precise and reliable voltage adjustment over a wide range.

### Step-down module, 24-80V to 12V, Fixed, 1A
- Page: https://sigmanortec.ro/en/step-down-module-24-80v-to-12v-fixed-1a
- Details: https://sigmanortec.ro/en/llms/p/2166.md
- Price: 35.80 RON
- Availability: In stock; 1-2 zile
- Reference: 9996 · EAN: 5946603757703
- Specifications: tension: AD; Supply Voltage: 24; Maximum Input Voltage: 80; Minimum Output Voltage: 12; Maximum Output Voltage: 12; Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Not; Adjustment Type: Fixed; Maximum Output Current: 2

DC-DC step-down converter module with variable input 24-80V and fixed 12V output. Output current 1A continuous, with short peaks up to 2A. Plastic housing resistant to splashes and dust, suitable for outdoor use. Useful on electric scooters to power 12V accessories. Dimensions: 70 x 21 x 13mm.

### Automatic DC-DC converter, 3000W, Step Up-Down, 9–60V, 50A
- Page: https://sigmanortec.ro/en/automatic-dc-dc-converter-3000w-step-up-down-960v-50a
- Details: https://sigmanortec.ro/en/llms/p/2229.md
- Price: 844.19 RON
- Availability: In stock; 1-2 zile
- Reference: 88070 · EAN: 5947888364587
- Specifications: Power: Over 20W; Supply Voltage: 9; Maximum Input Voltage: 60; Source Type: Automatic; Maximum Output Current: 50; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

Automatic buck-boost DC-DC converter YF-BKT60V50A, 3000W, input voltage 9–58V DC, adjustable output voltage 3–56V DC, output current up to 50A. Provides CC/CV regulation, efficiency up to 98.7%, switching frequency 200kHz, protection against overcurrent, overvoltage, overtemperature and short circuit. Passive cooling or optional 12VDC fan. Dimensions 100x65x21mm, weight 180g.

### Step-Up and Step-Down Voltage Module, LM2596S with LM2577S, 1-35V, 2A
- Page: https://sigmanortec.ro/en/step-up-and-step-down-voltage-module-lm2596s-with-lm2577s-1-35v-2a
- Details: https://sigmanortec.ro/en/llms/p/2341.md
- Price: 28.59 RON
- Availability: In stock; 1-2 zile
- Reference: 88184 · EAN: 5942826850788
- Specifications: Minimum Output Voltage: 1; Maximum Output Voltage: 35; Source Type: Automatic; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 2; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Main chip: LM2596S + LM2577S

Bidirectional DC-DC converter module with LM2596S (step-down) and LM2577S (step-up) chips. Input voltage 5-32VDC, adjustable output voltage 1.25-35VDC, maximum output current 2A, efficiency up to 92%. Fine adjustment via multiturn potentiometer, with overload, overvoltage and short-circuit protections. Dimensions: 53 x 37 x 15 mm.

### Step-down voltage converter, 12-24V to 5V, 3A, 15W, with USB-C
- Page: https://sigmanortec.ro/en/step-down-voltage-converter-12-24v-to-5v-3a-15w-with-usb-c
- Details: https://sigmanortec.ro/en/llms/p/2356.md
- Price: 72.15 RON
- Availability: In stock; 1-2 zile
- Reference: 88179 · EAN: 5940955341382
- Specifications: Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Not; Adjustment Type: Fixed; Output connector type: USB-C; Maximum output power: 15 W

Fixed step-down (buck) voltage converter with input 8-32 VDC (recommended 12V or 24V) and output 5 VDC via USB-C connector. Maximum current 3A, maximum power 15W, efficiency up to 91%. Includes overcurrent, short-circuit, overtemperature and reverse-polarity protection. Dimensions 63 x 27 x 14 mm, weight 50g. Ref. 88179.

### DC-DC Buck Converter Module with USB QC3.0 Fast Charging
- Page: https://sigmanortec.ro/en/dc-dc-buck-converter-module-with-usb-qc30-fast-charging
- Details: https://sigmanortec.ro/en/llms/p/2359.md
- Price: 6.92 RON
- Availability: In stock; 1-2 zile
- Reference: 88183 · EAN: 5943023897859
- Specifications: Power: Over 20W; Source Type: descend; Voltage Adjustment: Not; Adjustment Type: Fixed; Fast charging protocol: QC3.0; Output connector type: USB

DC-DC buck converter module with USB type A output for powering and fast charging devices via QC3.0. Input voltage 6-30VDC, output voltage automatically set between 3 and 12VDC depending on detected protocol (BC1.2, QC2.0/3.0, Apple, Samsung AFC, Huawei FCP, MTK PE1.1/PE2.0, SFCP). Maximum current 3.4A at 5V, 2.5A at 9V, 2A at 12V. Maximum power 24W, efficiency 90-97%. Dimensions 38 x 19 mm.

### DC-DC Buck Converter Module 5-80V to 5V, 1.25A
- Page: https://sigmanortec.ro/en/dc-dc-buck-converter-module-5-80v-to-5v-125a
- Details: https://sigmanortec.ro/en/llms/p/2375.md
- Price: 15.60 RON
- Availability: Out of stock
- Reference: 88190 · EAN: 5943208582716
- Specifications: Source Type: descend; Current Adjustment: Not; Voltage Adjustment: Not; Adjustment Type: Fixed; Maximum Output Current: 1.25; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

DC-DC buck converter with variable input voltage of 5-80V DC and fixed output voltage of 5V DC. Continuous current 1.25A, peak current 1.5A, efficiency above 90%, standby consumption 0.1 µA. Enable threshold 1.35V, shutdown threshold 1.1V. Aluminum substrate for heat dissipation. Dimensions 27.5 x 16mm. Suitable for powering USB devices, Arduino, ESP32, STM32.

### DC-DC Buck Converter Module 5-80V to 9V, 1.25A
- Page: https://sigmanortec.ro/en/dc-dc-buck-converter-module-5-80v-to-9v-125a
- Details: https://sigmanortec.ro/en/llms/p/2376.md
- Price: 14.94 RON
- Availability: Out of stock
- Reference: 88191 · EAN: 5946956911142
- Specifications: Source Type: descend; Current Adjustment: Not; Adjustment Type: Fixed; Maximum Output Current: 1.25; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

DC-DC buck (step-down) converter with input voltage 5-80V DC and fixed output 9V DC, continuous current 1.25A, peak current 1.5A, efficiency over 90%. Shutdown current consumption 0.1 µA, enable threshold 1.35V, shutdown threshold 1.1V. Aluminum substrate for thermal dissipation. Suitable for Arduino (VIN), wireless modules, motor drivers (L298N, L293D) and embedded systems.

### Dual QC3.0 module, 6-32V at 5V3.4A, 9V2.5A, 12V2A, 24W
- Page: https://sigmanortec.ro/en/dual-qc30-module-6-32v-at-5v34a-9v25a-12v2a-24w
- Details: https://sigmanortec.ro/en/llms/p/1538.md
- Price: 21.30 RON
- Availability: In stock; 1-2 zile
- Reference: 9428 · EAN: 5944841611269
- Specifications: tension: AD; Power: Over 20W; Maximum Input Voltage: 32; Minimum Output Voltage: 5; Maximum Output Voltage: 12; Source Type: descend; Adjustment Type: Fixed; Maximum Output Current: 3.4; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

QC3.0 fast charging module with two USB outputs, ideal for powering and charging devices in cars, DIY projects or industrial equipment. Accepts 6-30VDC and provides up to 24W, with automatic 3-12V output depending on protocol, 90-97% efficiency and overvoltage, overcurrent, short circuit and temperature protections. Power supply via IN pads or 5.5x2.5mm.
QC3.0 fast charging module, with two USB outputs for charging various electronic devices.
The output voltage is automatically adjusted between 3 and 12VDC depending on the protocol detected for Fast Charge (standard 5V).
Specifications:
Supply voltage: 6 - 30VDC
Output: 5V/3.4A, 9V/2.5A, 12V/2A
Maximum power: 24W …