June. 2003
(Rev.2)
- 1 -
IP1523
DUAL OUTPUT VOLTAGE SERIES REGULATOR
WWW.INTERPIONSEMI.COM
The IP1523 is a dual output voltage series regulator
with output on/off control function. The nominal output
voltages are 3.3V and 2.0V,respectively. The 3.3V
regulator can provide the output current up to 550mA.
While the 2.0V regulator can provide up to 500mA.
When the IP1523 becomes off, all the output voltages
are shut down.
- 1-Fixed 3.3V Regulator with Internal NPN TR.
- 1-Fixed 2.0V Regulator with Internal NPN TR.
- Built-in TSD circuit.
- Built-in Current Limit Circuit.
- Built-in ON/OFF Control Circuit.
- Built-in Over Voltage Protection Circuit.
- Outputs Trimmed to +/-3% Tolerance
DESCRIPTION
FEATURES
Device
Package
Operating Temp
IP1523
14SOPH-8L
-35
O
C ~ +85
O
C
ORDERING INFORMATION
14SOPH-8L
BLOCK DIAGRAM
N/C
VIN
VOUT1
ON/OFF
PGND
VOUT2
1
2
6
4
5
3
N/C
7
PGND
Vref
ON/OFF
Control SW
TSD
OVP
OCL
N/C
SHUT
DOWN
June. 2003
(Rev.2)
- 2 -
IP1523
DUAL OUTPUT VOLTAGE SERIES REGULATOR
WWW.INTERPIONSEMI.COM
PIN DESCRIPTIONS
NO
SYMBOL
I/O
DESCRIPTION
1
VIN
I
Input Supply Voltage
2
VOUT1
O
Reg +3.3V Output
3
N/C
-
No Connection
4
ON/OFF
I
ON/OFF Control
5
VOUT2
O
Reg +2.0V Output
6
N/C
-
No Connection
7
N/C
-
No Connection
8
PGND
-
Power Ground
PIN CONNECTIONS
N/C
VIN
VOUT1
ON/OFF
PGND
VOUT2
N/C
PGND
N/C
1
2
6
4
5
3
7
IP1523
June. 2003
(Rev.2)
- 3 -
IP1523
DUAL OUTPUT VOLTAGE SERIES REGULATOR
WWW.INTERPIONSEMI.COM
CHARACTERISTICS
SYMBOL
VALUE
UNIT
Maximum supply voltage
Vinmax
10
V
ON/OFF voltage
Vonoff
10
V
Power dissipation
Pd
3.5*
W
Operating temperature
Topr
-35 ~ +85
O
C
Storage temperature
Tstr
-55 ~ +150
O
C
Maximum output current
Iomax
700
mA
Note>
1. When mounted on 100mm X 100mm X 1mm PCB (Phenolic resin material).
2. Power dissipation reduces 28mW/
O
C for using above Ta=25
O
C
3. Do not exceed Pd and SOA.
POWER DISSIPATION CURVE
P
o
w
e
r
D
i
s
s
i
p
a
t
i
o
n
(
W
)
Ambient Temperature (
°
C)
25 50 75 100 125 150 175
0
1
2
3
RECOMMENDED OPERATING CONDITIONS
CHARACTERISTICS
SYMBOL
VALUE
UNIT
Supply voltage
Vcc
4.5 ~ 6.0
V
Input voltage
Vin
4.5 ~ 6.0
V
SOA
ABSOLUTE MAXIMUM RATINGS(TA=25
O
C)
4
June. 2003
(Rev.2)
- 4 -
IP1523
DUAL OUTPUT VOLTAGE SERIES REGULATOR
WWW.INTERPIONSEMI.COM
ELECTRICAL CHARACTERISTICS
Characteristics
Symbol
Condition
Min.
Typ.
Max.
Units
Quiescent current
Icc
Vcc=5.25V, No-Load
-
7
12
mA
OVP Detecting
Voltage
Vovp
Vcc=Variable
6.5
-
-
V
3.3V REGULATOR PART
Output Voltage
Vout1
Io=10mA
3.2
3.3
3.4
V
Line Regulation
dVline1
Vin=4.5~6V, Io=10mA
-
0.035
0.2
%
Load Regulation
dVload 1
Vin=5.25V, 10mA < Io < 500mA
-
0.4
0.8
%
Dropout voltage
Vdrop1
Io=500mA
-
1.1
1.3
V
Ripple rejection
RR1
F=120Hz, Co=10uF Tantalum
(Vin-Vout)=3V, Io=200mA
60
70
-
dB
Current limit
*Note
Ilimit1
Vin-Vout=2.5V
550
-
-
mA
Temperature
stability
Temp1
-
-
0.5
-
%
2.0V REGULATOR PART
Output Voltage
Vout2
Io=10mA
1.94
2.0
2.06
V
Line Regulation
dVline2
Vin=4.5~6V, Io=10mA
-
0.035
0.2
%
Load Regulation
dVload2
Vin=5.25V, 10mA < Io < 300mA
-
0.4
0.8
%
Dropout voltage
Vdrop2
Io=300mA
1.7
2.1
V
Ripple rejection
RR2
F=120Hz, Co=10uF Tantalum
(Vin-Vout)=3V, Io=100mA
60
70
dB
Current limit
*Note
Ilimit2
Vin-Vout=3.0V
500
-
-
mA
Temperature
stability
Temp2
-
-
0.5
-
%
Output noise
voltage 1
Vn1
Io=300mA
-
100
-
uV
Output noise
voltage 2
Vn2
Io=150mA
-
100
-
uV
( Vin= 5.25V, Co=10uF, Ta = 25
O
C, unless otherwise specified.)
June. 2003
(Rev.2)
- 5 -
IP1523
DUAL OUTPUT VOLTAGE SERIES REGULATOR
WWW.INTERPIONSEMI.COM
ELECTRICAL CHARACTERISTICS (Continued)
( Vin= 5.25V, Co=10uF, Ta = 25
O
C, unless otherwise specified.)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Units
ON/OFF CONTROL PART
On voltage
Von
Vout=Enabled
-
-
0.8
V
Off voltage
Voff
Vout=Disabled
2.0
-
-
V
* Note
Don
'
t exceed following the current limit.
( Iout1 : 550 mA, Iout2 : 500 mA )
June. 2003
(Rev.2)
- 6 -
IP1523
DUAL OUTPUT VOLTAGE SERIES REGULATOR
WWW.INTERPIONSEMI.COM
APPLICATION SUMMARY
- ON / OFF Control Function
If you want to control the output of the IP1523, use pin #4 as follows:
Pin#4
IP1523
HIGH
off
LOW
on
ON/OFF control function
If the voltage of pin#4 becomes larger than the threshold
voltage Vth, the main bias current and hence, the output
voltages will be shut down.
June. 2003
(Rev.2)
- 7 -
IP1523
DUAL OUTPUT VOLTAGE SERIES REGULATOR
WWW.INTERPIONSEMI.COM
TYPICAL APPLICATION CIRCUIT
Vinput
2.0V
10uF
10uF
3.3V
N/C
VIN
VOUT1
ON/OFF
PGND
VOUT2
N/C
PGND
N/C
1
2
6
4
5
3
7
IP1523
Von/off
H
L
June. 2003
(Rev.2)
- 8 -
IP1523
DUAL OUTPUT VOLTAGE SERIES REGULATOR
WWW.INTERPIONSEMI.COM
INTERNAL CIRCUIT
Pin no
Pin name
Internal circuit
2
Regulator
output1
5
Regulator
Output2
June. 2003
(Rev.2)
- 9 -
IP1523
DUAL OUTPUT VOLTAGE SERIES REGULATOR
WWW.INTERPIONSEMI.COM
Pin no
Pin name
Internal circuit
4
ON / OFF
INTERNAL CIRCUIT (Continued)
June. 2003
(Rev.2)
- 10 -
IP1523
DUAL OUTPUT VOLTAGE SERIES REGULATOR
WWW.INTERPIONSEMI.COM
0
2
4
6
8
10
0
2
4
6
8
10
QUIESCENT CURRENT
I
c
c
(
m
A
)
Vcc (V)
-50
0
50
100
150
1.97
1.98
1.99
2.00
2.01
2.02
VREF TEMPERATURE STABILITY
V
R
E
F
(
V
)
TEMP (
O
C)
ELECTRICAL CHARACTERISTICS CURVES
June. 2003
(Rev.2)
- 11 -
IP1523
DUAL OUTPUT VOLTAGE SERIES REGULATOR
WWW.INTERPIONSEMI.COM
0
200
400
600
800
0.6
0.8
1.0
1.2
1.4
VOUT1 Dropout Voltage (V)
D
r
o
p
o
u
t
V
o
l
t
a
g
e
(
V
)
Output Current (mA)
0
200
400
600
800
1.2
1.4
1.6
1.8
2.0
VOUT2 Dropout Voltage
D
r
o
p
o
u
t
V
o
l
t
a
g
e
(
V
)
Output Current (mA)
ELECTRICAL CHARACTERISTICS CURVES (Continued)
June. 2003
(Rev.2)
- 12 -
IP1523
DUAL OUTPUT VOLTAGE SERIES REGULATOR
WWW.INTERPIONSEMI.COM
0
250
500
750
1000
1250
3.20
3.25
3.30
3.35
3.40
VOUT1 Load Regulation (Tj=25
o
C)
O
u
t
p
u
t
V
o
l
t
a
g
e
(
V
)
Output Current (mA)
0
250
500
750
1000
1250
1.85
1.90
1.95
2.00
2.05
2.10
VOUT2 Load Regulation (Tj=25
o
C)
O
u
t
p
u
t
V
o
l
t
a
g
e
(
V
)
Output Current (mA)
ELECTRICAL CHARACTERISTICS CURVES (Continued)
June. 2003
(Rev.2)
- 13 -
IP1523
DUAL OUTPUT VOLTAGE SERIES REGULATOR
WWW.INTERPIONSEMI.COM
0
20
40
60
80
100
-300
-200
-100
0
100
200
Io=50mA
Io=550mA
VOUT1 Load Transient Response
O
u
t
p
u
t
V
o
l
t
a
g
e
D
e
v
i
a
t
i
o
n
(
m
V
)
Time (usec)
0
20
40
60
80
100
-300
-200
-100
0
100
200
Io=50mA
Io=500mA
VOUT2 Load Transient Response
O
u
t
p
u
t
V
o
l
t
a
g
e
D
e
v
i
a
t
i
o
n
(
m
V
)
Time (usec)
ELECTRICAL CHARACTERISTICS CURVES (Continued)
June. 2003
(Rev.2)
- 14 -
IP1523
DUAL OUTPUT VOLTAGE SERIES REGULATOR
WWW.INTERPIONSEMI.COM
PACKAGE DIMENSION
14SOPH-8L
#1
6.00
0.30
(0.236
0.012)
3.95
0.2
(0.156
0.008)
5.72
(0.225)
0.60
0.20
(0.024
0.008)
0~8
1.80MAX
(0.071MAX)
MIN0.05
(MIN0.002)
1.55
0.10
(0.061
0.004)
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