SY20771ADC - Linear Charger


  • Input Voltage Range: 3.8V to 5.5V
  • Up to 500mA Constant Current, the Current Could be Adjusted by External PWM Signal
  • PWM Signal Frequency Range: 20kHz~200kHz
  • Charge Status Report
  • Thermal Regulation Control
  • Thermal Shutdown Protection
  • Pb-free Package: TSOT23-6

Typical Application


SY20771 is a linear charger, which includes pre-charge/constant current/constant voltage mode. During constant current mode, its output current could be adjusted by external PWM signal. Its max output current capacity is up to 500mA. It is an ideal linear charger solution for single cell Li-Ion application.


  • Battery Powered Applications
  • Consumer and Portable Products