Power chip

15V

LM317L 3-Pin or 8-Pin 100mA Adjustable Positive Voltage Regulator

TPS7A37 1% High-Accuracy, 1-A Low-Dropout Regulator with Reverse Current Protection

2A charging/2.4A discharging mobile power SOC driven by integrated digital tube, synchronous boost converter, charging while discharging function, suitable for 188 type digital tube

LP3966 3A Fast Ultra Low Dropout Linear Regulator

TPS731 Capless, NMOS, 150mA Low-Dropout Voltage Regulator with Reverse Current Protection