LTC4090
Description
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.
Key Features
- Seamless Transition Between Power Sources: Li-Ion Battery, USB, and 6V to 36V Supply (60V Max)
- 2A Output High Voltage Buck Regulator with Bat-Track™ Adaptive Output Control (LTC4090)
- Internal 215mW Ideal Diode Plus Optional External Ideal Diode Controller Provides Low Loss PowerPath™ When External Supply/ USB Not Present
- Load Dependent Charging from USB Input Guarantees Current Compliance
- Full Featured Li-Ion Battery Charger
- 1.5A Maximum Charge Current with Thermal Limiting
- NTC Thermistor Input for Temperature Qualified Charging
- Tiny (3mm × 6mm × 0.75mm) 22-Pin DFN Package
