LTC4090-3 Datasheet (Linear Technology)

LTC4090-3, USB Power Manager

The LTC®4090-3 is a USB power manager plus high voltage Li-Ion/Polymer battery charger.

The device controls 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 current do

LTC4090-3 Features

* nn Seamless Transition Between Power Sources: Li-Ion Battery, USB, and 6V to 36V Supply (60V Max) nn 2A Output High Voltage Buck Regulator with Bat-Track™ Adaptive Output Control nn 3.95V Float Voltage Improves Battery Life Span and High Temperature Safety Margin nn Internal 215mΩ Ideal Diode Plus O