Contents
Features ........................................................... 1
Block Diagram.................................................. 1
Applications...................................................... 1
Selection Guide................................................ 1
Pin Assignment ................................................ 2
Advantages over the S-812 Series .................. 2
Electrical Characteristics.................................. 3
Test Circuits ..................................................... 9
Technical Terms ............................................ 10
Operation ....................................................... 10
Transient Response....................................... 12
Standard Circuit ............................................. 23
Application Circuits......................................... 23
Notes on Design............................................. 24
Characteristics ............................................... 25
Measuring Circuits ......................................... 30
Package Power Dissipation ........................... 30
Dimensions, Taping ....................................... 31
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Absolute Maximum Ratings ............................. 2
Rev. 2.0
HIGH-PRECISION VOLTAGE REGULATOR
S-813 Series
The S-813 Series is a three-terminal positive voltage regulator made
using a CMOS process. The output voltage is fixed internally. The S-
813 Series has higher accuracy of output voltage (±2.4%) and needs a
smaller input/output voltage difference (V
dif
=0.12 V when I
OUT
is 40 mA)
than the S-812 Series, so battery-powered portable equipment can have
a higher capacity and a longer service life.
n
Features
•
Low current consumption: 16
µA
typ.
•
Small input/output voltage difference
(Ex: S-81350HG: 0.12 V typ. I
OUT
=40 mA)
•
High accuracy of output voltage:
±2.4%
•
Wide operating voltage range: 15 V max.
•
Wide operating temperature range:
-30°C to 80°C
•
TO-92 or SOT-89-3 plastic package
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Block Diagram
V
IN
3
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UC
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V
REF
-
+
*
1
V
OUT
PR
2
GND
* Parasitic diode
Figure 1
n
Applications
•
Constant voltage power supply of VTR, camera,
OA equipment, cordless phone, and others
n
Selection Guide
Output voltage
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Table 1
TO-92
SOT-89-3*
2.2 V± 2.4%
S-81322HG-KW-X
2.8 V± 2.4%
S-81328HG-K0-X
3.0 V± 2.4%
S-81330HG
S-81330HG-KB-X
3.1 V± 2.4%
S-81331HG-K3-X
3.2 V± 2.4%
S-81332HG
S-81332HG-KC-X
3.3 V± 2.4%
S-81333HG-KF-X
3.5 V± 2.4%
S-81335HG
S-81335HG-KI-X
3.7 V± 2.4%
S-81337HG
S-81337HG-KE-X
4.0 V± 2.4%
S-81340HG
S-81340HG-KJ-X
4.2 V± 2.4%
S-81342HG-KN-X
4.3 V± 2.4%
S-81343HG-KP-X
4.7 V± 2.4%
S-81347HG
S-81347HG-KQ-X
5.0 V± 2.4%
S-81350HG
S-81350HG-KD-X
5.2 V± 2.4%
S-81352HG-KL-X
* The last digit of the model name changes depending upon the packing form when it is an SOT-89-3 package
product.
X=S : Stick
X=T1 or T2 : Tape
** Please ask our sales person if you need another output voltage product.
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Seiko Instruments Inc.
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HIGH-PRECISION VOLTAGE REGULATOR
S-813 Series
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Pin Assignment
1. TO-92
1
2
3
V
OUT
GND
V
IN
3
2. SOT-89-3
Top view
1
2
3
1
1 2 3
V
OUT
GND
V
IN
2
Bottom view
Figure 2
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Advantages over the S-812 Series
The S-813 Series has the following advantages over conventional voltage regulators such as the S-812 Series.
1. Small input/output voltage difference
Input/output voltage difference against output current is much smaller. For example in the S-81350HG, it is only 0.12 V when
output current is 40 mA. In battery-powered equipment, the S-813 Series prolongs the battery service life.
2. Large output current available
Output current is allowed up to 100 mA. In this case, however, be careful with input voltage and power dissipation.
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Absolute Maximum Ratings
2
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Parameter
Symbol
Ratings
Input voltage
V
IN
18
Output voltage
V
OUT
V
IN
+0.3 to V
SS
-0.3
Power dissipation
P
D
500
Operating temperature
T
opr
-30 to +80
Storage temperature
T
stg
-40 to +125
Caution
: Keep static electricity to a minimum.
ED
Table 2
(Unless otherwise specified: Ta=25°C)
Unit
V
V
mW
°C
°C
Seiko Instruments Inc.
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Figure 3
HIGH-PRECISION VOLTAGE REGULATOR
S-813 Series
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Electrical Characteristics
1. S-81322HG-KW-X
Table 3
(Unless otherwise specified
:
Ta=25°C)
Parameter
Output voltage
Input/output voltage
difference
Load regulation
Current consumption
Line regulation
Input voltage
Temperature charac-
teristic of
∆V
OUT
Ripple rejection
Symbol
V
OUT
V
dif
∆V
OUT
I
SS
∆V
OUT
∆V
IN
•V
OUT
V
IN
∆V
OUT
∆Ta
|RR|
Conditions
V
IN
=4.2 V, I
OUT
=30 mA
I
OUT
=30 mA
I
OUT
=10
µA
to 30 mA
V
IN
=4.2 V
V
IN
=4.2 V, No loaded
V
IN
=3.2V to 14 V
I
OUT
=30 mA
Min.
2.147
Typ.
2.200
0.22
60
16
Max.
2.253
0.44
150
30
Unit
V
V
mV
µA
Test cir.
1
1
1
2
1
OD
UC
T
0.04
0.2
15
±0.26
35
Min.
2.733
Typ.
2.800
0.14
60
16
0.04
±0.34
48
Max.
2.867
0.28
150
30
0.2
15
%/V
V
I
OUT
=30 mA, V
IN
=4.2 V
Ta=-30°C to 80°C
f=100 Hz, CL=100
µF
I
OUT
=30 mA, V
IN
=4.2 V
*
mV/°C
dB
2. S-81328HG-K0-X
ED
Conditions
Table 4
Parameter
Output voltage
Input/output voltage
difference
Load regulation
Current consumption
Line regulation
Input voltage
Temperature charac-
teristic of
∆V
OUT
Ripple rejection
Symbol
V
OUT
V
dif
PR
Definition of input/output voltage difference : V
IN2
-V
OUT1
V
OUT1
=Output voltage when input voltage is 4.2 V
V
IN2
=Input voltage when 98% of V
OUT1
is output.
(Unless otherwise specified
:
Ta=25°C)
Unit
V
V
mV
µA
%/V
V
mV/°C
dB
Test cir.
TI
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V
IN
=4.8 V, I
OUT
=30 mA
I
OUT
=30 mA
1
1
1
2
1
∆V
OUT
ON
|RR|
I
SS
∆V
OUT
∆V
IN
•V
OUT
V
IN
∆V
OUT
∆Ta
I
OUT
=10
µA
to 30 mA
V
IN
=4.8 V
V
IN
=4.8 V, No loaded
V
IN
=3.8 V to 15 V
I
OUT
=30 mA
I
OUT
=30 mA, V
IN
=4.8 V
Ta=-30°C to 80°C
f=100 Hz, CL=100
µF
I
OUT
=30 mA, V
IN
=4.8 V
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Definition of input/output voltage difference : V
IN2
-V
OUT1
V
OUT1
=Output voltage when input voltage is 4.8 V
V
IN2
=Input voltage when 98% of V
OUT1
is output.
Seiko Instruments Inc.
3
HIGH-PRECISION VOLTAGE REGULATOR
S-813 Series
3. S-81330HG, S-81330HG-KB-X
Table 5
(Unless otherwise specified
:
Ta=25°C)
Parameter
Output voltage
Input/output voltage
difference
Load regulation
Current consumption
Line regulation
Input voltage
Temperature charac-
teristic of
∆V
OUT
Ripple rejection
Symbol
V
OUT
V
dif
∆V
OUT
I
SS
∆V
OUT
∆V
IN
•V
OUT
V
IN
∆V
OUT
∆Ta
|RR|
Conditions
V
IN
=5 V, I
OUT
=30 mA
I
OUT
=30 mA
I
OUT
=10
µA
to 30 mA
V
IN
=5 V
V
IN
=5 V, No loaded
V
IN
=4V to 15 V
I
OUT
=30 mA
I
OUT
=30 mA, V
IN
=5 V
Ta=-30°C to 80°C
f=100 Hz, CL=100
µF
I
OUT
=30 mA, V
IN
=5 V
*
Min.
2.928
Typ.
3.000
0.14
60
16
0.04
Max.
3.072
0.28
150
30
0.2
15
Unit
V
V
mV
µA
%/V
V
Test cir.
1
1
1
2
1
OD
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±0.35
48
Min.
3.026
Typ.
3.100
0.14
60
16
0.04
±0.37
48
Max.
3.174
0.28
150
30
0.2
15
mV/°C
dB
Definition of input/output voltage difference : V
IN2
-V
OUT1
V
OUT1
=Output voltage when input voltage is 5 V
V
IN2
=Input voltage when 98% of V
OUT1
is output.
4. S-81331HG-K3-X
Table 6
Parameter
Output voltage
Input/output voltage
difference
Load regulation
Current consumption
Line regulation
Input voltage
Temperature charac-
teristic of
∆V
OUT
Ripple rejection
Symbol
V
OUT
V
dif
Conditions
ED
PR
(Unless otherwise specified
:
Ta=25°C)
Unit
V
V
mV
µA
%/V
V
mV/°C
dB
Test cir.
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V
IN
=5.1 V, I
OUT
=30 mA
I
OUT
=30 mA
I
OUT
=10
µA
to 30 mA
V
IN
=5.1 V
V
IN
=5.1 V, No loaded
V
IN
=4.1 V to 15 V
I
OUT
=30 mA
I
OUT
=30 mA, V
IN
=5.1 V
Ta=-30°C to 80°C
f=100 Hz, CL=100
µF
I
OUT
=30 mA, V
IN
=5.1 V
*
1
1
1
2
1
∆V
OUT
SC
4
ON
|RR|
I
SS
∆V
OUT
∆V
IN
•V
OUT
V
IN
∆V
OUT
∆Ta
Definition of input/output voltage difference : V
IN2
-V
OUT1
V
OUT1
=Output voltage when input voltage is 5.1 V
V
IN2
=Input voltage when 98% of V
OUT1
is output.
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