AiT Semiconductor A4772
The A4772 is a low voltage, single N-MOSFET high-side power switch, optimized for self-powered and bus-powered Universal Serial Bus (USB) applications. The A4772 equipped with a charge pump circuitry to drive the internal MOSFET switch; the switch's low RDS(ON), 80mΩ, meets USB voltage drop requirements and a flag output is available to indicate fault conditions to the local USB controller. The maximum current is limited to typically 2.1A/1.5A/1A/0.65A through the switch of A4772A/B/C/D, lower quiescent current as 25uA making this device ideal for portable battery-operated equipment.| Part No. | A4772 |
|---|---|
| Datasheet | A4772 Download |
| Manufacturer |  AiT Semiconductor |
| Description | POWER SWITCHES |
| Buy | Stock & Price |
DESCRIPTION
Additional features include soft-start to limit inrush current during plug-in, thermal shutdown to prevent catastrophic switch failure from high-current loads, under-voltage lockout (UVLO) to ensure that the device remains off unless there is a valid input voltage present. The A4772 is available in SOT-25 package. ORDERING INFORMATION Package Type Part Number SOT-25 Note E5 A4772ZE5R-X A4772ZE5VR-X X: Pin Type Z: Current V: Halogen free Package R: Tape & Reel AiT provides all RoHS products Suffix “ V “ means Halogen free PackageFEATURES
● Wide Input Voltage Ranges : 2.5V to 5.5V● Compliant to USB Specifications
● Typical RDS(ON) : 80mΩ
● 1.7V Typical Under-Voltage Lockout (UVLO)
● Output Can Be Forced Higher Than Input (Off-State)
● Low Supply Current : 25uA Typical at Switch on State 1uA Typical at Switch off State
● Guaranteed 1.5A/1A/0.8A/0.5A for A4772A/B/C/D Continuous Load Current
● Open-Drain Fault Flag Output
● Hot Plug-In Application (Soft-Start)
● Current Limiti...
