# Step-Up and Step-Down Voltage Module, LM2596S with LM2577S, 1-35V, 2A

> 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.

- Page: https://sigmanortec.ro/en/step-up-and-step-down-voltage-module-lm2596s-with-lm2577s-1-35v-2a
- Price: 28.59 RON
- Availability: In stock; 1-2 zile
- Reference: 88184 · EAN: 5942826850788
- Category: Electronic components > Other Tension Modules
- 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
- Updated: 2026-09-23
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 02:22 (Europe/Bucharest)

## Description

Bidirectional DC-DC converter for electronic projects, raises or lowers the voltage depending on the application, with an input of 5-32 V and adjustable output of 1.25-35 V. Provides up to 2 A at the output, efficiency up to 92% for reduced losses, fine adjustment via multiturn potentiometer, and integrated protections against overload, overvoltage, and short circuit.
This DC-DC converter module represents a versatile and efficient solution for voltage regulation in electronic projects. By integrating two specialized circuits, LM2596S (for step-down function) and LM2577S (for step-up function), the module can both increase and decrease the input voltage depending on the application's needs.
The accepted input voltage ranges between 5 and 32 VDC, while the output voltage is adjustable between 1.25 and 35 VDC, offering remarkable flexibility in circuit configuration. The maximum output current is 2A, and the energy efficiency reaches up to 92%, reducing thermal losses and unnecessary energy consumption.
Specifications:
Converter type: Step-up and step-down
Integrated circuits: LM2596S (step-down), LM2577S (step-up)
Input voltage: 5 - 32 VDC
Output voltage: Adjustable 1.25 - 35 VDC
Maximum output current: 2A
Energy efficiency: Up to 92%
Protections: Overload, overvoltage, short circuit
Adjustment: CV, multiturn potentiometer
Dimensions: 53 x 37 x 15 mm
Layout:
Usage:
Connect the power supply to the VIN+ and GND terminals of the module, respecting the polarity. Minimum 5VDC and maximum 35VDC.
Before connecting the consuming devices, turn the potentiometer fully counterclockwise to set the output voltage to the minimum value.
Connect a voltmeter to the VOUT+ and GND terminals of the output.
Apply the input voltage and slowly adjust the potentiometer clockwise until the voltmeter shows the desired voltage.
Connect the consuming devices to the VOUT+ and GND terminals, respecting the polarity.
Check that the set output voltage does not exceed the limit supported by the connected devices.
Do not exceed the maximum output current of 2A to avoid damaging the module.