LTC4090 Datasheet (Linear Technology Corporation)

LTC4090, USB Power Manager

The LTC®4090/LTC4090-5 are USB power managers plus high voltage Li-Ion/Polymer battery chargers.

The devices control the total current used by the USB peripheral for operation and battery charging.

Battery charge current is automatically reduced such that the sum of the load current and the charge c

LTC4090 Features

* n Seamless Transition Between Power Sources: Li-Ion Battery, USB, and 6V to 36V Supply (60V Max) n 2A Output High Voltage Buck Regulator with Bat-Track™ Adaptive Output Control (LTC4090) n Internal 215mW Ideal Diode Plus Optional External Ideal Diode Controller Provides Low Loss PowerPath™ When Exte