It is 12v DC step down Converter Module CA1253 which has an Input voltage of 9-25V, output voltage of 5V-3.3V, efficiency is as high as 92%, the maximum output current is  3A, and 24-hour work does not need to strengthen heat. This is a dual output power module for various applications using 5V and 3.3V and it is driven by DC 12V input through 2 power IC to switch 5V and 3.3V. 12V DC converter DC step-down module CA-1253 12V to 5V to 3.3V 3A current power supply board, LCD repair tool.

Feature:

1. Input voltage: 12V
2. Output voltage: 5V and 3.3V
3. Max Output current: about 3A,
4. Conversion efficiency: up to 92%
5. Operating frequency: 380kHz
6. Protection: Output short circuit and overheat with auto-recovery

Pin Assignment for P2, P3, and P4:

1. P2 is 12V input port: 12V 12V GND GND
2. P3 is a 12v output port： GND GND ADJ SW 12V 12V
3. P4 are 5v & 3.3v output port: ADJ SW GND GND GND GND 5V 5V 3.3V 3.3V(1)

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Package Includes:

1x 12v DC LED step down Convertor CA1253