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Product description

IN is connected to input, out is connected to output, and the positive and negative poles should not be reversed according to the markings on the board! After the connection is complete, adjust the voltage reduction counterclockwise, and rotate it for more than ten laps!

Product parameters

Model/Name: LM2596S DC-DC Buck Module

Input voltage: 3.2V~35V

Output voltage: 1.25V~35V

Output current: 3A

Conversion efficiency: 92%

Output ripple: <30mV

Switching frequency: 65KHz

Working temperature: -45℃~ +85℃

Size: 43mm * 21mm * 14mm (L*W*H)

Precautions :

IN+ input positive IN- input negative!

OUT+ output positive OUT- output negative!

Note that the input and output cannot be reversed. Reverse connection may burn!

Input: DC 3V to 35V (The input voltage must be more than 1.5v higher than the output voltage. It cannot be boosted)

Output: DC 1.5V to 35V continuously adjustable voltage, high efficiency output current is 3A.

Features: All use SANYO solid-state capacitors, 36u thick circuit board, high-Q high-power inductors, with output LED indicators

It is recommended to use the current within 2.5A when working for a long time. If it exceeds 2A, you need to add a heat sink (output above 10W);

Since it is a step-down module, in order to ensure stable output, please keep a small 1.5V voltage drop.

Wiring

1. Welding, directly welding the power cord to the input (output) port;

2. Solder the pins, which can be inserted into the pins through the leads or inserted into the hole board for use; or directly soldered on the PCB after adding the pins.

Application example

1. Vehicle regulated power supply, you only need to connect the input end of this module to the car cigarette lighter to supply power, you can adjust the potentiometer, and the output voltage can be adjusted arbitrarily between 1.25-30V to charge your mobile phone, MP3, MP4, PSP, etc. Powered by many devices, very simple and convenient.

2. Power supply to electronic equipment. When the equipment needs 3-35V power supply and the corresponding voltage power supply is in hand, this module can easily adjust the voltage to the required voltage and solve the problem.

3. System working voltage test, you can use this module to debug the working voltage range of various voltage test systems when doing projects, which is very easy and convenient.