ADVANCED INFORMATION
AIC1532
500mA DUAL REGULATOR WITH VAUX DRIVE
SPEC NO: DS-1532-P1 03/14/00
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FEATURES
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DESCRIPTION
AIC1532 is a dual input regulator with V
AUX
drive
control
capable
of
delivering
3.3V/500mA
continuously. The output power is provided from
three independent input voltage sources on a
prioritized basis. Power is always taken in priority
using the following order V
CC
, V
SBY
, and V
AUX
.
AIC1532 meets Intel’s “ Instantly Available ” power
requirements
Configuration
which
and
follows
Power
the
“Advanced
(ACPI)
Interface“
Continuous 3.3V Output from Three Inputs.
Complete Power Management Solution.
V
CC
, V
SBY
Regulator Supplies 500mA Output.
Built-in Hysteresis When Selecting Input Supplies.
Drive Control Signal for External V
AUX
Switch.
Output can be Forced Higher than Input (Off-State).
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APPLICATIONS
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Desktop Computers.
PCI Adapter Cards with Wake-On-LAN.
Network Interface Cards (NICs).
Multi Power System.
System with Standby Capabilities.
standards. When either V
CC
or VSBY is present, the
device automatically enables the regulator and
produces a stable 3.3V output VOUT. When only
VAUX (3.3V) is present, the drive control output will
turn-on an external PMOS switch from an auxiliary
3.3V supply V
AUX
to V
OUT
.
The IC also prevents excessive current from flowing
V
OUT
to either input voltage or ground when the
output voltage is bigger than the input voltage.
All the necessary control circuitry needed to provide
a smooth and automatic transition between all the
three supplies has been incorporated. This allows
both V
CC
and V
SBY
to be dynamically switched
without loss of output voltage.
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TYPICAL APPLICATION CIRCUIT
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ORDERING INFORMATION
AIC1532 CX
PACKAGE TYPE
N: PLASTIC DIP
S: SMALL OUTLINE
ORDER NUMBER
AIC1532CN
AIC1532CN
(PLASTIC DIP)
AIC1532CS
AIC1532CS
(PLASTIC SO)
PIN CONFIGURATION
TOP VIEW
VSBY
VCC
VOUT
RDIVE
1
2
3
4
8 GND
7 GND
6 GND
5 GND
ANALOG INTEGRATIONS CORPORATION
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
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AIC [ ANALOG INTERGRATIONS CORPORATION ]
