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The product is intended for specialists and requires qualified and authorized personnel. The product does not include assembly/use instructions . Putting the product into operation by unqualified persons leads to the loss of the warranty according to the Terms and Conditions on the site.
The specified technical parameters (current, power, etc.) represent maximum allowable values under ideal operating conditions. For safe use and optimal lifespan, it is recommended to operate the product continuously at no more than 50% of the specified maximum values.
DC-DC Buck Converter Module 5-80V to 9V, 1.25A
DC-DC step-down buck converter, ideal for obtaining a stable 9V supply from sources with wide variations between 5 and 80V. It delivers up to 1.25A continuous, over 90% efficiency for reduced losses, extremely low standby consumption, and an aluminum substrate for efficient heat dissipation. Suitable for Arduino on VIN, wireless modules, motor drivers, and embedded systems.
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This buck (step-down) DC-DC converter is designed to convert a variable input voltage (5-80V) to a stable 9V output voltage, ideal for powering USB devices, microcontrollers (Arduino, ESP32, STM32), sensors, or other circuits. The aluminum substrate ensures efficient heat dissipation, allowing operation at higher currents without overheating. The module is suitable for photovoltaic systems, wind turbines, onboard power supplies, or any application requiring a stable 9V source from a highly fluctuating input.
The converter provides a continuous current of 1.25A and a peak current of 1.5A, with an efficiency of over 90%.
Specifications:
Input voltage: 5 - 80 VDC
Output voltage: 9 VDC
Continuous current: 1.25 A
Maximum peak current: 1.5 A
Efficiency: > 90%
Quiescent current (shutdown): 0.1 µA
Enable voltage threshold: 1.35V
Shutdown voltage threshold: 1.1 V
Pinout:
| Pin | Description |
|---|---|
| VIN+ | Positive input (5-80V DC) |
| VIN- | Negative input (ground) |
| OUT+ | Positive 9V output |
| OUT- | Negative output (common ground) |
Usage:
Connect the DC power source (solar panel, battery, laboratory power supply) to the VIN+ and VIN- terminals, respecting the polarity. Do not reverse the polarity, as there is a risk of damaging the module.
Before connecting the load, measure the output voltage with a multimeter; it should be approximately 9V.
After verification, connect the device to be powered to the OUT+ and OUT- terminals. Ensure that the load does not exceed the maximum current.
Dimension diagram:
- Supply Voltage
- Maximum Input Voltage
- Minimum Output Voltage
- Maximum Output Voltage
- Source Type
- descend
- Current Adjustment
- Not
- Adjustment Type
- Fixed
- Maximum Output Current
Produs destinat utilizarii in proiecte electronice, automatizari, prototipare, educatie si cercetare.
Produsul trebuie utilizat numai conform specificatiilor tehnice mentionate in descriere si/sau in documentatia produsului.
Avertismente generale de siguranta:
Nu utilizati produsul la tensiuni, curenti sau temperaturi peste valorile specificate.
Montajul si conectarea trebuie realizate de persoane cu cunostinte tehnice minime in domeniul electric/electronic.
Evitati scurtcircuitele, inversarea polaritatii si conectarea gresita a alimentarii.
Nu lasati produsul alimentat nesupravegheat in timpul testelor.
Produsul nu este jucarie si nu este destinat copiilor.
Pentru modulele electronice, se recomanda utilizarea in carcase, panouri sau montaje protejate, dupa caz.
Identificare produs:
Denumirea produsului, codul/SKU-ul si caracteristicile tehnice sunt mentionate in pagina produsului si/sau pe eticheta ambalajului.
Producator / Importator / Distribuitor:
Sigmanortec S.R.L.
Calea Bucuresti nr. 9, Targu Jiu, Gorj, Romania
E-mail: [email protected]
Website: www.sigmanortec.ro
Persoana responsabila in UE:
Sigmanortec S.R.L.
Calea Bucuresti nr. 9, Targu Jiu, Gorj, Romania
E-mail: [email protected]
Documentatie si siguranta:
Pentru informatii suplimentare, fise tehnice, declaratii de conformitate sau instructiuni, ne puteti contacta la [email protected].
