sp1602 power chip OK. It is mounted in a two-row 5-pin SOT-23 package. The maximum operating voltage is 12V, and the stable voltage is 5.0V(±2.5%). Working current as low as 50μA; When the voltage difference is 0.1V, the output current is 100mA. The maximum dissipation power is 150mW; The operating temperature is -40 ~ 85℃. Power management chip, as long as the use of electronic products will know, he is an indispensable part of the power supply, bearing the role of the link between the past and the future, the power management ic in the electronic equipment system to assume the transformation of power, distribution, detection and other power management responsibilities of the chip, mainly responsible for identifying the CPU power supply amplitude, generate the corresponding wave, Push the rear circuit for power output.