TPS2148
FEATURES
D plete Power Management Solution for
USB Bus-Powered Peripherals
D 3.3-V 200 m A Low-Dropout Voltage Regulator
With Enable
D 3.3-V 340-mΩ (Typ) High-Side MOSFET D 5-V 340-mΩ (Typ) High-Side MOSFET D Independent Thermal- and Short-Circuit
Protection for LDO and Each Switch
D 2.9-V to 5.5-V Operating Range D CMOS- and TTL-patible Enable Inputs D 75-µA (Typ) Supply Current D Available in 8-Pin MSOP (Power PAD) D
- 40°C to 85°C Ambient Temperature Range
APPLICATIONS
D USB Peripherals
- Digital Cameras
- Zip Drives
- Speakers and Headsets
DESCRIPTION
The TPS2148 incorporates two power distribution switches and an LDO in one small package, providing a USB peripheral power management solution that saves up to 60% in board space over typical implementations.
The TPS2148 meets USB 2.0 bus-powered peripheral requirements. An integrated LDO regulates the 5-V bus power down to 3.3 V for the USB controller, and a MOSFET switch that is internally connected to the output of the LDO...
