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LTC3552-1
FEATURES
Standalone Linear Li-Ion Battery Charger and Dual Synchronous Buck Converter
DESCRIPTIO
■ Programmable Charge Current Up to 950mA ■ Complete Linear Charger and Dual DC/DC
Regulator ■ Dual Fixed Outputs:
1.8V at 800mA 1.575V at 400mA ■ No MOSFET, Sense Resistor or Blocking Diode Required ■ Thermal Regulation Maximizes Charge Rate Without Risk of Overheating* ■ Charges Directly from a USB Port ■ Programmable Charge Current Termination ■ Preset 4.2V Charge Voltage with ±1% Accuracy ■ Charge Current Monitor Output for Gas Gauging* ■ Automatic Recharge ■ Charge Status Output ■ “Power Present” Output ■ Soft-Start Limits Inrush Current ■ Low Quiescent Current Buck Converter (40µA) ■ Current Mode Operation, Constant Frequency (2.25MHz) ■ Low Profile (5mm × 3mm × 0.
LTC3552-1 Datasheet
