TPS22949A Overview
The TPS22949 and TPS22949A are devices that provide protection to systems and loads in highcurrent conditions. The device contains a 500-mΩ current-limited P-channel MOSFET that can operate over an input voltage range of 1.62 V to 4.5 V as well as a low-dropout (LDO) regulator with a fixed output voltage of 1.8 V. The switch is controlled by an on/off input (EN1), which can interface directly with low-voltage...
TPS22949A Key Features
- 1 Integrated Current Limiter
- Input Voltage Range: 1.62 V to 4.5 V
- Low ON-Resistance
- rON = 300-mΩ at VIN = 4.5 V
- rON = 350-mΩ at VIN = 3.3 V
- rON = 400-mΩ at VIN = 2.5 V
- rON = 600-mΩ at VIN = 1.8 V
- Integrated 100-mA Minimum Current Limit
- Undervoltage Lockout
- Fast-Current Limit Response Time
TPS22949A Applications
- Fingerprint Module Protection