AP2821:Single Channel USB Switch

Part NumberData SheetSPICE ModelMaximum Continuous Output Current (A)Maximum Current Limit (A)Enable LogicMinimum Operating Voltage (V)Maximum Operating Voltage (V)Quiescent Current Typ (µA)RDS(ON) (VIN = 5V) Typ (mΩ)Output DischargeOCP Output Latch OffOCP FlagOperating Ambient Temperature Range (°C)UL ListedNEMKO IEC 60950-1 CB
AP2821AP2821.pdf-1.52.8Active High2.75.535120YesNoNo-40 to +85PendingPending
Description

The AP2821 is an integrated high-side power switch that consists of TTL compatible enables input, a charge pump, and N-Channel MOSFET. The switch’s low RDS (ON), 120mΩ, meets USB voltage drop requirements. It includes soft-start to limit inrush current, over-current protection with fold-back, and thermal shutdown to avoid switch failure during hot plug-in. Under voltage lockout (UVLO) function is used to ensure the device remain off unless there is a valid input voltage present. And no reverse current when power off, with shutdown pull-low resistor to discharge the output capacitor when EN is disable.

Application
  • USB Power Management
  • USB Bus/Self Powered Hubs
  • Hot-plug Power Supplies
  • Battery-charger Circuits
  • Notebooks, Motherboard PCs
Ordering Information
  • AP2821KTR-G1
SOT25
AP2821.pdf AP2821
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