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Linear Regulator. AIC1531 Datasheet

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Linear Regulator. AIC1531 Datasheet
















AIC1531 Regulator. Datasheet pdf. Equivalent













Part

AIC1531

Description

500mA Dual Linear Regulator



Feature


www.DataSheet4U.com AIC1531 500mA Dual Linear Regulator with Internal Power Sw itch n FEATURES l l l l l n DESCRIPTI ON AIC1531 is a dual input regulator wi th VAUX switch capable of delivering 3. 3V/500mA continuously. The output power is provided from three independent inp ut voltage sources on a prioritized bas is. Power is always taken in priority u sing the following.
Manufacture

AIC

Datasheet
Download AIC1531 Datasheet


AIC AIC1531

AIC1531; order VCC, VSBY, and VAUX . The AIC1531 meets Intel’s “ Instantly Availabl e ” power requirements which follows the “Advanced Configuration and Power Interface“ (ACPI) Continuous 3.3V O utput from Three Inputs. Complete Power Management Solution. VCC, VSBY Regulat or Supplies 500mA Output. Built-in Hyst eresis When Selecting Input Supplies. I ntegrated Switch has Very Lo.


AIC AIC1531

w RDS(ON) 120mΩ (typ.). Integrated Swi tch Supplies 500mA From VAUX . Output c an be Forced Higher than Input (Off-Sta te). l l n APPLICATIONS l l l l l De sktop 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 V SBY is present, the de vice automatically e.


AIC AIC1531

nables the regulator and produces a stab le 3.3V output VOUT . When only VAUX (3 .3V) is present, the device provides a low impedance direct connection (120m typ.) from VAUX to VOUT . The AIC1531 also prevents excessive current from f lowing V OUT to either input voltage or ground when the output voltage is high er than the input voltage. All the nece ssary control circui.





Part

AIC1531

Description

500mA Dual Linear Regulator



Feature


www.DataSheet4U.com AIC1531 500mA Dual Linear Regulator with Internal Power Sw itch n FEATURES l l l l l n DESCRIPTI ON AIC1531 is a dual input regulator wi th VAUX switch capable of delivering 3. 3V/500mA continuously. The output power is provided from three independent inp ut voltage sources on a prioritized bas is. Power is always taken in priority u sing the following.
Manufacture

AIC

Datasheet
Download AIC1531 Datasheet




 AIC1531
www.DataSheet4U.com
AIC1531
500mA Dual Linear Regulator with Internal
Power Switch
n FEATURES
l Continuous 3.3V Output from Three Inputs.
l Complete Power Management Solution.
l VCC, VSBY Regulator Supplies 500mA Output.
l Built-in Hysteresis When Selecting Input Supplies.
l Integrated Switch has Very Low RDS(ON) 120m
(typ.).
l Integrated Switch Supplies 500mA From VAUX .
l Output can be Forced Higher than Input (Off-State).
n APPLICATIONS
l Desktop Computers.
l PCI Adapter Cards with Wake-On-LAN.
l Network Interface Cards (NICs).
l Multi Power System.
l System with Standby Capabilities.
n DESCRIPTION
AIC1531 is a dual input regulator with VAUX
switch 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 VCC, VSBY, and VAUX .
The AIC1531 meets Intel’s “ Instantly Available ”
power requirements which follows the “Advanced
Configuration and Power Interface“ (ACPI)
standards. When either VCC 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 device provides a low
impedance direct connection (120mtyp.) from
VAUX to VOUT.
The AIC1531 also prevents excessive current from
flowing VOUT to either input voltage or ground
when the output voltage is higher 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 VCC and VSBY to be
dynamically switched without loss of output
voltage.
Analog Integrations Corporation 4F, 9 Industry E. 9th Rd, Science-Based Industrial Park, Hsinchu, Taiwan
TEL: 886-3-5772500
FAX: 886-3-5772510 www.analog.com.tw
DS-1531-00 022502
1




 AIC1531
AIC1531
n TYPICAL APPLICATION CIRCUIT
VSBY_5V
+
C1
10µ F
VCC_5V
1
VSBY
8
GND
+
C2
1 0µF
2
3
4
VAUX_3.3V
VCC
VOUT
AUX
7
GND
6
GND
5
GND
AIC1531
3.3V/500mA
+
C3
10µ F
Dual Input Regulator with Auxiliary Power Switch
n ORDERING INFORMATION
AIC1531CXXX
PACKING TYPE
TR: TAPE & REEL
TB: TUBE
PACKAGE TYPE
N: PLASTIC DIP
S: SMALL OUTLINE
PIN CONFIGURATION
DIP-8
SO-8
TOP VIEW
VSBY 1
VCC 2
VOUT 3
AUX 4
8 GND
7 GND
6 GND
5 GND
Example: AIC1531CSTR
à in SO-8 Package & Taping & Reel Packing Type
(CN is not available in Tape & Reel packing type.)
n ABSOLUTE MAXIMUM RATINGS
VCC, VSBY Input Voltage ..................................................................................................7.0V
VAUX Input Voltage ...........................................................................................................4.0V
VOUT Output Voltage ........................................................................................................5.0V
Operating Temperature Range ............................................................................... -40°C~85°C
Storage Temperature Range...............................................................................-65°C ~ 150°C
2




 AIC1531
AIC1531
n ELECTRICAL CHARACTERISTICS (VIN= 5V, TA=25°C, unless otherwise
specified.)
PARAMETERS
CONDITIONS
Regulated Output Voltage
Regulated Output Current
0mA < ILOAD < 500mA
Output Voltage Load
Regulation
Output Voltage Line Regulation
VCC selected
ILOAD=50mA ~ 500 mA
VSBY selected
ILOAD=50mA ~ 500mA
VCC=4.5V~5.5V, ILOAD=5mA
VSBY=4.5V~5.5V, ILOAD=5mA
MIN.
3.135
500
TYP.
3.300
MAX.
3.465
UNIT
V
mA
20 mV
2 mV
VCC Select Voltage
VCC Deselect Voltage
VSBY > VSBYDES or VAUX present
VCC < VCCDES
3.90
4.50
4.20
4.60
V
VSBY Select Voltage
VSBY Deselect Voltage
Hysteresis Voltage
Auxiliary Switch Resistance
Short Circuit Current
VCC Pin Reverse Leakage
VSBY Pin Reverse Leakage
AUX Pin Reverse Leakage
VCC Supply Current
(when VSBY is not present)
VSBY Supply Current
(when VCC is not present)
VAUX Supply Current
Ground Current
VAUX present
VSBY< VSBYDES
3.90
VCC , VSBY are deselected
VCC/SBY=5V, VOUT=0V
One supply input taken to ground
while the others remain at nominal
voltage
VCC > VCCSEL , ILOAD=0mA
VCCDES > VCC > VOUT
VOUT > VCC
VSBY > VCCSEL , ILOAD=0mA
VSBYDES > VSBY > VOUT
VOUT > VSBY
VCC or VSBY > VOUT
VCC and VSBY < VOUT
Both VCC and VSBY are deselected
VCC/SBY=5V , ILOAD = 0mA
VCC/SBY=5V , ILOAD = 500mA
4.50
4.20
0.30
120
1000
5
70
50
10
70
50
10
10
50
60
100
100
4.60
200
50
300
200
20
300
200
20
100
400
300
500
500
V
V
m
mA
µA
µA
µA
µA
µA
3




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