Datasheet Linear Technology LTC4054LES5-4.2#TRMPBF

LTC4054L-4.2
150mA Standalone Linear
Li-Ion Battery Charger in ThinSOT
Description Features Programmable Charge Current Range:
10mA to 150mA
n No External MOSFET, Sense Resistor or Blocking
Diode Required
n Complete Linear Charger in ThinSOTв„ў Package for
Single Cell/Coin Cell Lithium-Ion Batteries
n Constant-Current/Constant-Voltage Operation with
Thermal Regulation* to Maximize Charge Rate
without Risk of Overheating
n Charges Single Cell Li-Ion Batteries Directly from
USB Port
n Preset 4.2V Charge Voltage with В±1% Accuracy
n Charge Current Monitor Output for Gas Gauging*
n Automatic Recharge
n Charge Status Output Pi C/10 Charge Terminatio 25ВµA Max Supply Current in Shutdown Mode
n 2.9V Trickle Charge Threshold
n Soft-Start Limits Inrush Current
n Available in a 5-Lead Low Profile (1mm)
SOT-23 Package The LTCВ®4054L is a complete, constant-current/constantvoltage linear charger for single cell lithium-ion batteries.
Its small size and ability to regulate low charge currents …