General Description
The RT9161B is a single-cell lithium-ion battery charger. It includes an on-chip pass transistor for high precision charging. Featuring with ultrahigh precision (±1%), the RT9161B provides a very effective and low cost solution for charging lithium ion battery.
Other features of the RT9161B are current limit and thermal shutdown protection. The output voltage of RT9161B is internally set and ranges from 4.10V to 4.35V, in 0.05V steps. The RT9161B comes in the
SOT-89 and SOT-223 packages.

Features
High Accuracy Charge Voltage: ±1%
6 Available Output Voltages
Low 450mV Dropout at 300mA
Wide Input Voltage Range
Thermal Shutdown and Current Limit Protection
SOT-89 and SOT-223
Low Ground Current 110µA

Applications
Li-Ion Battery Charger
Cellular Phones
Palmtop Computers
PDAs
Self Charging Battery Packs