AiT Semiconductor A4773
The A4773 is an integrated power switch for selfpowered and bus-powered Universal Serial Bus (USB) applications. The A4773 is a cost-effective, low voltage, single P-channel MOSFET load switch with 70mΩ RDS(ON), which is free of parasitic body diode and has no reverse input-output leakage current. When the output voltage is higher than input voltage, the power switch is turned off by internal output reverse-voltage protector.| Part No. | A4773 |
|---|---|
| Datasheet | A4773 Download |
| Manufacturer |  AiT Semiconductor |
| Description | 2.7A POWER SWITCH |
| Buy | Stock & Price |
DESCRIPTION
Several protection features include current limiting and thermal shutdown to prevent catastrophic switch failure caused by increasing power dissipation when continuous heavy loads or short circuit occurs. FLAG is an open-drain output report over-current or over-temperature event and has typical 13ms deglitch timeout period. In addition, FLAG also reports output reverse-voltage condition with typical 5ms deglitch timeout period.FEATURES
● Typical 27μA Low Quiescent Current● Typical 0.1μA Shutdown Current
● No Reverse Input-Output Leakage Current
● Meets USB Current Limiting Requirements
● Adjustable Current Limit: 400mA to 2.7A
● Fast Over-Current Response
● 70mΩ High-side MOSFET
● Under Voltage Lockout
● Thermal Shutdown Protection
● Operating Range: 2.5V to 5.5V
● Built-In Soft-Start Function APPLICATION
● USB Host and Self-Powered Hubs
● USB Bus-Powered Hubs
● USB Power Management
● General Purpose Power Switch (High Side)
● Hot Plug-in Power Supplies
● Battery-Charger Circuits The A4773 is available in SOT-26 package.
