Power chip

The NCP331 is a low Ron N-channel MOSFET controlled with a 1.5 ms soft-start sequence for mobile applications. Very low RDS(on) enables systems to power or charge batteries at up to 3A DC. The device is automatically enabled when power is connected to the Vin pin (active high) and remains off if there is no Vin (internal pull-down). Due to optimized current consumption, leakage current from the battery connected to the device is greatly reduced, extending battery life.

Power module module power supply acdc module 220V to 12V 5W small volume power supply@@①output 12V420mA 5W;②isolation withstand voltage 3000V;③input range: AC85-264V and DC100-375V;④size: length 38.0*width 23.0*height 18.0mm ; \n⑤With over-current and over-temperature short-circuit protection function, moisture-proof, dust-proof and high-temperature resistant

Vout=4.2V, Iout=250mA

TPS62067 3MHz, 2A Step-Down Converter with 2x2 SON encapsulation

5V, 2.5A Output, 35V Input Step-Down Regulator