- 50.00

LM2596 DC-DC 4.5-40V 3Aadjustable step-down power Supply module

> SKU: N/A

 200.00  150.00




Weight: 13.2g/pc

Dimmension: 43(L) x 21(W) x 14(H)mm (16.93 x 8.27 x 51.51inches)

IN+ input positive, IN- output negative

OUT+ output positive, OUT- output negative

Dimensions: 45 (L) 20 (w) 14 (H) mm (with potentiometer)

Input Voltage range: DC 3.2V ~ 36V (Max below 35DCV, input voltage must be higher 1.5V than output voltage, can’t boost)

Output Voltage range: DC 1.25V ~ 34V (Max below 32DCV) voltage continuous

adjustable,high-efficiency maximum output current of 3A

Conversion efficiency: 92% (the highest)

Working Temperature: – 40 ℃ to + 85 ℃

Measured12V input, 5Voutputcurrent is 1Aload regulation rate of less than1%


1.this is the step-down module, the input voltage must be higher than the output voltage

2.Pls don’t reflect in connect the circuit on input/output, or it might burn off

Voltage Adjustable: 

Connect the power (3-40V) ,adjust the blue potentiometer knobs, (anti-clockwise rotation step-down) and monitor the output voltage with a multi meter to reach the required voltage.


1.Car stable voltage power supply, only need to connect the module to the car cigarette lighter power supply, you can adjust any output voltage

bewteen 1.25V~30V by Adjusting the potentiometer for charging for your mobile phone, MP3, MP4, PSP,etc and many devices, simple and convenient.

2.Power supply for the electronic equipment, you can adjust the voltage 3-35V what you need with this module according to electronic equipment, easy and convenient.

3.Voltage Testing for system work, you can debug a variety of voltage test of system working with this module, easy and convenient.

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