AIC1523
500mA Power Distribution Switch
Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
www.analog.com.tw
DS-1523-00 May 30, 01 TEL: 886-3-5772500 FAX: 886-3-5772510 1
n FEATURES
• 120mΩ (5V Input) High-Side MOSFET Switch.
l 500mA Continuous Load Current.
l 80µA Typical On-State Supply Current.
l 1µA Typical Off-State Supply Current.
l Current-Limit / Short Circuit Protection.
l Thermal Limiting Protection under Overcurrent
Condition.
l Output can be Forced Higher than Input (Off-State).
l Active-High or Active-Low Enable.

n APPLICATIONS
l Power Management.
l PCI Cards With Wake-On- LAN
l Hot Plug-In Power Supplies.
l Power Distribution Switch.
n DESCRIPTION
The AIC1523 is an integrated high-side power
switches for input power selection applications
that using in portable products or PCI interface
peripheral cards. The high-side switch is a
MOSFET with 120mΩ RDS(ON), low voltage drop
and low power consumption meet power saving
requirements . The switch ON/OFF is controlled
by CTL pin.
Output current is typically limited to 1.0A, well
below the 5A safety requirement, and thermal
shutdown function shuts the switch off to prevent
damage under overcurrent conditions.
Design easily and layout flexibility for getting
stable voltage in power transfer transition for power
selection application. Guaranteed minimum
output rise time limits inrush current during hot
plug-in, minimizing EMI and preventing the voltage
at upstream port from dropping excessively.
n TYPICAL APPLICATION CIRCUIT

33µF
5.0V
VCC OUTIN
GND
*33µF 0.01µF
* 33µF, 16V Tantalum, or
100µF, 10V Electrolytic
Bold line indicate high-current traces
0.1µF
VOUT
+
AIC1523-0
+
CTL
High-Side Power Distribution Switch