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
120m
(5V Input) High-Side MOSFET Switch.
l
500mA Continuous Load Current.
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80
A Typical On-State Supply Current.
l
1
A Typical Off-State Supply Current.
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Current-Limit / Short Circuit Protection.
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Thermal Limiting Protection under Overcurrent
Condition.
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Output can be Forced Higher than Input (Off-State).
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Active-High or Active-Low Enable.
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APPLICATIONS
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Power Management.
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PCI Cards With Wake-On- LAN
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Hot Plug-In Power Supplies.
l
Power Distribution Switch.
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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 120m
R
DS(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.
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TYPICAL APPLICATION CIRCUIT
33
F
5.0V
V
CC
OUT
IN
GND
*
33
F
0
.
01
F
* 33
F, 16V Tantalum, or
100
F, 10V Electrolytic
Bold line indicate high-current traces
0.1
F
V
OUT
+
AIC1523-0
+
CTL
High-Side Power Distribution Switch
AIC1523
2
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ORDERING INFORMATION
ORDER NUMBER
PIN CONFIGURATION
AIC1523-XCX
PACKAGING TYPE
O: MSOP
S: SO8
CONTROL POLARITY
0: Active Low
1: Active High
AIC1523-0CO
AIC1523-1CO
(MSOP8)
NC
NC
OUT
GND
IN
CTL
NC
NC 1
3
4
2
8
6
5
7
FRONT VIEW
AIC1523-0CS
AIC1523-1CS
(SO8)
NC
NC
OUT
GND
IN
CTL
NC
NC 1
3
4
2
8
6
5
7
FRONT VIEW
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ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
IN
) .......................................................... ... ... ... .......... ... ........... 7.0V
Operating Temperature Range
......... ... ... ................. ... ... ... ... .... ............... -40
C ~ 85
C
Storage Temperature Range
....................................... ... ... .................. -65
C ~ 150
C
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ELECTRICAL CHARACTERISTICS
(V
IN
= 5V, Ta=25
C, unless otherwise
specified.)
PARAMETERS
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply Current
Switch Off, OUT=Open
Switch On, OUT=Open
0.75
80
2
100
A
Control Input Voltage
V
CTL
=Logic "0"
V
CTL
=Logic "1"
2.4
0.8
V
Control Input Current
V
CTL
=Logic "0"
V
CTL
=Logic "1"
0.01
0.01
1
1
A
Output MOSFET Resistance
I
OUT
= 500mA
120
180
m
Output Turn-On Rise Delay
R
L
= 10
30
S
Output Turn-On Rise Time
R
L
= 10
500
S
Output Turn-Off Delay
R
L
= 10
0.2
10
S
AIC1523
3
n
ELECTRICAL CHARACTERISTICS
(Continued)
PARAMETERS
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Output Turn-Off Fall Time
R
L
= 10
0.2
10
S
Output Leakage Current
2
A
Current Limit Threshold
Vin = 5.0V
0.6
1.0
1.25
A
Current Limit Threshold
Vin = 2.4V
0.6
A
Thermal Limit
110
C
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BLOCK DIAGRAM
GATE
NMOS
RS
Limit
Current
Gate Control
Charge
Pump
Thermal
Protection
OSC.
GND
OUT
IN
CTL
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TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current (
A)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
50
55
60
65
70
75
80
85
90
On-State Supply Current vs. Supply
Supply Voltage (V)
-
40
-20
0
20
40
60
80
100
65
70
75
80
85
On-State Supply Current vs. Temperature
Supply Current (
A)
Temperature (
C)
AIC1523
4
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TYPICAL PERFORMANCE CHARACTERISTICS
(Continued)
Off-State Supply Current vs. Supply Voltage
Supply Voltage (V)
Supply Current (nA)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
-40
-20
0
20
40
60
80
100
0
2
4
6
8
10
12
14
16
18
20
Off-State Supply Current vs. Temperature
Supply Current (nA)
Temperature (
C)
Supply Voltage
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
100
105
110
115
120
125
130
Output On
Resistance
vs. Supply Voltage
Switch_ON
Ristance (m
)
Switch On Resistance (m
)
Temperature (
C)
-40
-20
0
20
40
60
80
100
80
90
100
110
120
130
140
150
Output On Resistance vs. Temperature
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
400
500
600
700
800
900
1000
Supply Voltage (V)
Current Limit vs. Supply Voltage
Current Limit (
mA)
Output Rise Time (
S)
Temperature (
C)
Output Rise Time vs. temperature
-40
-20
0
20
40
60
80
100
350
400
450
500
550
AIC1523
5
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TYPICAL PERFORMANCE CHARACTERISTICS
(Continued )
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
CTL rising
CTL falling
CTL Threshold Voltage vs. Supply Voltage
Supply Voltage (V)
Temperature (
C)
Output Fall Time vs. Temperature
Output Fall Time (
nS)
-40
-20
0
20
40
60
80
100
50
100
150
200
250
300
Turn On Rising Time (10
loading)
CTL
I
OUT
V
OUT
200mA/DIV
426
S
Turn On Characteristic (35
, Loading)
100
F
No Cap
I
OUT
, 200mA/DIV
220
F
CTL
Turn Off Falling Time (10
Loading)
CTL
I
OUT
V
OUT
107nS
200mA/DIV
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