RT9721B Description
The RT9721A/B are low voltage, single N-MOSFET highside power switches, optimized for self-powered and buspowered Universal Serial Bus (USB) applications. The RT9721A/B series provides a charge pump circuitry to drive the internal MOSFET switch; the switch's low RDS(ON), 80mΩ, meets USB voltage drop requirements;.
RT9721B Key Features
- pliant to USB Specifications
- Built-In N-MOSFET
- Output Can Be Forced to Higher Than Input (Off
- Low Supply Current
- Guaranteed 500mA Continuous Load Current
- Wide Input Voltage Ranges : 2.5V to 5.5V
- Open-Drain Fault Flag Output
- Hot Plug-In Application (Soft-Start)
- 2.15V Typical Under-Voltage Lockout (UVLO)
- Current Limiting Protection
RT9721B Applications
- pliant to USB Specifications