Datasheet Linear Technology LTC4080XEMSE#PBF

LTC4080X
500mA Standalone Li-Ion
Charger with Integrated 300mA
Synchronous Buck in 3mm Г— 3mm DFN
Description Features Complete Linear Battery Charger with Integrated
Buck Converter in 3mm x 3mm DFN Package
Battery Charger:
nn Constant-Current/Constant-Voltage Operation
with Thermal Feedback to Maximize Charge Rate
Without Risk of Overheating
nn Internal 4.5 Hour Safety Timer for Termination
nn Charge Current Programmable Up to 500mA with
5% Accuracy
nn C/10 Charge Current Detection Output
nn 5ВµA Supply Current in Shutdown Mode
Switching Regulator:
nn High Efficiency Synchronous Buck Converter
nn 300mA Output Current (Constant-Frequency Mode)
nn 2.7V to 4.5V Input Range (Powered from BAT Pin)
nn 0.8V to V
BAT Output Range
nn MODE Pin Selects Fixed (2.25MHz) Constant-Frequency PWM Mode or Low ICC (23ВµA) Burst ModeВ®
Operation …