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