Power chip

500mA Low Dropout Regulator 8-SOIC -40 to 125

1.0 A current drive capability; low RDS(ON) resistance; PARA-IN drive mode; PWM current rectification/current limiting; 2 bits current control, providing 4 current steps; current decay mode with arbitrarily set fast and slow decay ratio; logic input The pin has a built-in pull-down resistor; over-temperature protection function; over-current embedding and short-circuit protection self-recovery function; low-voltage protection function.

TPS54335A 4.5-V to 28-V input, 3-A synchronous buck converter with Eco-Mode

Lithium battery charging SOC

Isolated power module: input range AC85~265V/DC100~370V, output 5V and 5V, maximum output power 5W, isolation voltage greater than 2.5kVAC, standard size, industrial grade, standby power consumption as low as 0.15W, TA5~10 series efficiency as high as 83% DIP, 48x36x20mm

LP3985 Micropower, 150mA Low Noise Ultra Low Dropout CMOS Voltage Regulator

TPS3801 Small Supply Voltage Supervisor with Manual Reset