AIC1520
Single High-Side Power Switch
Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC www.analog.com.tw
DS-1520-00 July 7, 00 TEL: 886-3-5772500 FAX: 886-3-5772510 1
g110
FEATURES
g183 120mg87 (5V Input) High-Side MOSFET Switch.
g108 500mA Continuous Load Current.
g108 80g109A Typical On-State Supply Current.
g108 Current-Limit / Short Circuit Protection.
g108 Thermal Limiting Protection under Overcurrent
Condition.
g108 Undervoltage Lockout Ensures that Switch is off at
Start Up.
g108 Output can be Forced Higher than Input (Off-State).
g108 Slow Turn ON and Fast Turn OFF.

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APPLICATIONS
g108 Motherboard USB Management.
g108 USB Power Management.
g108 Hot Plug-In Power Supplies.
g108 Battery-Charger Circuit.
g108 Power Distribution Switch.
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DESCRIPTION
The AIC1520 is an integrated high-side power
switch for self-powered and bus-powered
Universal Serial Bus (USB) applications. The
high-side switch is a MOSFET with 120mg87 R
DS(ON)
,
which meets USB voltage drop requirements for
maximum transmission wire length.

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.

Guaranteed minimum output rise time limits
inrush current during hot plug-in, minimizing EMI
and preventing the voltage at upstream port from
dropping excessively.
g110
TYPICAL APPLICATION CIRCUIT

33g109F
5.0V
VCC OUT
IN
GND
*33g109F
D+
D-
GND
VBUS
0.01g109F
*33g109F, 16V Tantalum, or
100g109F, 10V Electrolytic
Bold line indicate high-current traces
0.1g109F
Ferrite Bead
+
DATA
AIC1520
+
USB High-Side Power Switch