0.5A to 2.0A High-side Power Distribution Switches AP2822
General Description Features
The AP2822 is an integrated high-side power switch Low MOSFET On Resistance: 85m
that consists of N-Channel MOSFET, charge pump, Compliant to USB Specifications
over current & temperature and other related protection Available 4 Versions of Continuous Load:
circuits. The switchs low R , 85m, is designed 0.5A/1.0A/1.5A/2.0A
DS(ON)
to meet USB voltage drop requirements. The IC Logic Level Enable Pin: Available with
includes soft-start to limit inrush current, over-current Active-high or Active-low Version
protection, load short protection with fold-back, and Operating Voltage Range: 2.7V to 5.5V
thermal shutdown to avoid switch failure during hot Low Supply Current: 68A (Typ.)
plug-in. Under voltage lockout (UVLO) function is Low Shutdown Current: 1.0A (Max)
used to ensure the device remain off unless there is a Under-voltage Lockout
valid input voltage present. A FLAG output is Soft Start-up
available to indicate fault conditions to the local USB Over-current Protection
controller. Over Temperature Protection
Load Short Protection with Fold-back
The AP2822 is available in the standard package of
No Reverse Current When Power Off
SOT-23-5.
Deglitched FLAG Output with Open Drain
With Output Shutdown Pull-low Resistor
Applications
USB Power Management
USB Bus/Self Powered Hubs
Hot-plug Power Supplies
Battery-charger Circuits
Notebooks, Motherboard PCs
SOT-23-5
Figure 1. Package Type of AP2822
Dec. 2012 Rev 1. 1 BCD Semiconductor Manufacturing Limited
1 0.5A to 2.0A High-side Power Distribution Switches AP2822
Pin Configuration
K/KA/KB/KE Package
SOT-23-5
K KA
EN VOUT
FLAG 1 5 VOUT 1 5
2
GND 2 GND
3
EN34 VIN FLAG 4 VIN
KB KE
VOUT 1 5 VOUT VOUT 1 5 VIN
GND 2 GND 2
VIN 3 4 EN FLAG 3 4 EN
Figure 2. Pin Configuration of AP2822 (Top View)
Dec. 2012 Rev 1. 1 BCD Semiconductor Manufacturing Limited
2