SY20762FQDC - High Efficiency, 2A, Two-Cell Boost Li-Ion Battery Charger


  • Low Profile QFN3x3 Package
  • Integrated Synchronous Boost with 18V Rating Low RDSON FETs for High Charge Efficiency
  • Trickle Current / Constant Current / Constant Voltage Charge Mode
  • Adaptive Input Current Limit with selectable threshold
  • Maximum 2A Constant Charge Current
  • Charge Current Information Indication
  • Programmable Constant Charge Current
  • Programmable Charge Termination Current
  • Thermal Regulation Protection
  • External Shutdown Function
  • Input Voltage UVLO and OVP
  • Output Short Circuit Protection
  • Over Temperature Protection
  • Input Power Good Indication
  • Battery Inserted Indication
  • Charge Status Indication
  • Normal Synchronous Boost Operation When Battery Removed

Typical Application


SY20762F is a 3.0-5.5VIN, 2A two-cell synchronous boost Li-Ion battery charger integrates 1MHz switching frequency and full protection functions. The charge current up to 2A can be programmed by using the external resistor for different portable applications and indicates the charger current information simultaneous. It has adaptive input current limit with selectable threshold for safety battery charge operation. SY20762F can disconnect output when there is output short circuit or shutdown happens. It consists of 18V rating FETs with extremely low ON resistance to achieve high charge efficiency and simple peripheral circuit design.

SY20762F along with small QFN3x3 footprint provides small PCB area application.


  • POS, Cellular Telephones, PDA, MP3 Players, MP4 Players
  • Digital Cameras
  • Bluetooth Applications
  • PSP Game Players, NDS Game Players