This document describes the features and characteristics of the CMPWR160 USB Peripheral Power Management features by CALIFORNIA MICRO DEVICES, including 3.3V regulated output, low quiescent current, shutdown mode current, thermal overload protection, foldback current limiting protection, etc.
The California Micro Devices CMPWR160 is a Low Dropout Regulator (LDO) combined with a Power-On Reset (POR) generator designed for Universal Serial Bus (USB) peripherals. It supports both bus-powered and self-powered USB devices, delivering up to 500mA of load current at a fixed 3.3V output while drawing very low quiescent current.
| Load Current | Up to 500 mA |
|---|---|
| Quiescent Supply Current | 35 uA (typical) |
| Shutdown Mode Current | 7 uA (typical) |
| Power-On Reset Pulse Duration | 30 ms (typical) |
The device has a typical quiescent current of 35 uA.
When disabled, the regulator draws a typical shutdown supply current of 7 uA.