Power chip

Detection voltage 3.3V

TPS54331 3.5-V to 28-V input, 3-A, 570-kHz step-down converter with Eco-mode

UA78 1.5A, 40V Fixed Positive Linear Regulator

I2C 2-cell 2-A boost battery charger with WCSP encapsulation, power path, for USB input 25-DSBGA -40 to 85

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Isolated power module: input range AC85~265V/DC100~370V, output ±15V, 15W, isolation voltage greater than 2.5kVAC, standard size, industrial grade, standby power consumption as low as 0.15W, TA15 series module power efficiency up to 85%, DIP :62*45*22mm

LP38690 Stable 1-A Low-Dropout CMOS Linear Regulator with Ceramic Output Capacitors