Contents
Features .............................................................................................. 1
Applications ......................................................................................... 1
Pin Assignment ................................................................................... 1
Selection Guide ................................................................................... 2
Absolute Maximum Ratings ................................................................. 3
Test Circuits ........................................................................................ 17
Technical Terms.................................................................................. 17
Operation............................................................................................. 18
Transient Response ............................................................................ 19
Standard Circuit................................................................................... 22
Application Circuits .............................................................................. 22
Notes on Design .................................................................................. 24
Package Power Dissipation ................................................................. 25
Characteristics..................................................................................... 26
Measuring Circuits............................................................................... 32
Dimensions, Taping............................................................................. 33
Electrical Characteristics ..................................................................... 3
DI
SC
ON
TI
NU
ED
PR
OD
UC
T
Rev.2.0
HIGH-PRECISION
VOLTAGE REGULATOR
S-812XXSG Series
The S-812XXSG Series is a three-terminal positive voltage regulator
made using the CMOS process. Since the S-812XXSG Series has
higher precision output voltage and consumes less current than existing
three-terminal voltage regulators, battery-powered portable equipment
can have a higher performance and a longer service life.
n
Features
Low power consumption (2.5
µA
max.)
High accuracy of output voltage
±2% : V
OUT
≥2.7
V
±2.4% : V
OUT
≤2.6
V
•
Small input/output voltage difference
(S-81250SG: 160 mV typ. I
OUT
=10 mA)
•
Low temperature coefficient of output voltage
(S-81250SG: ±0.625 mV/°C typ.)
•
Wide operating voltage range
(S-81250SG: 16 V max.)
•
Good line regulation
(S-81250SG: 40 mV typ. I
OUT
=1µA to 40 mA)
TO-92, SOT-89-3 and SOT-23-5 package
•
•
n
OD
UC
T
Block Diagram
V
IN
*
2
+
-
V
OUT
3
PR
R
L
Ref.
vol.
1
GND
* Parasitic diode
Figure 1
n
Applications
•
Constant voltage power supply of battery-powered equipment, communications equipment, video equipment
and others
n
Pin Assignment
(1)
TO-92
ON
TI
NU
(2)
ED
SOT-89-3
Top view
1 GND
2 V
IN
3 V
OUT
(3)
SOT-23-5
Top View
NC
NC
DI
SC
1 GND
2 V
IN
3 V
OUT
1
1 2 3
2
3
GND
V
IN
V
OUT
Bottom view
Figure 2
Seiko Instruments Inc.
1
HIGH PRECISION VOLTAGE REGULATOR
S-812XXSG Series
n
Selection Guide
Table 1
Output voltage
1.1±2.4%
1.2±2.4%
1.3±2.4%
1.4±2.4%
1.5±2.4%
1.6±2.4%
1.7±2.4%
1.8±2.4%
1.9±2.4%
2±2.4%
2.1±2.4%
2.2±2.4%
2.3±2.4%
2.4±2.4%
2.5±2.4%
2.6±2.4%
2.7±2.0%
2.8±2.0%
2.9±2.0%
3±2.0%
3.1±2.0%
3.2±2.0%
3.3±2.0%
3.4±2.0%
3.5±2.0%
3.6±2.0%
3.7±2.0%
3.8±2.0%
3.9±2.0%
4±2.0%
4.1±2.0%
4.2±2.0%
4.3±2.0%
4.4±2.0%
4.5±2.0%
4.6±2.0%
4.7±2.0%
4.8±2.0%
4.9±2.0%
5±2.0%
5.1±2.0%
5.2±2.0%
5.3±2.0%
5.4±2.0%
5.5±2.0%
5.6±2.0%
*
TO-92*1
S-81211SGY-X
S-81212SGY-X
S-81213SGY-X
S-81215SGY-X
S-81216SGY-X
S-81217SGY-X
S-81218SGY-X
S-81219SGY-X
S-81220SGY-X
S-81221SGY-X
S-81222SGY-X
S-81223SGY-X
S-81224SGY-X
S-81225SGY-X
S-81226SGY-X
SOT-89-3*2
S-81211SGUP-DQA-X
S-81212SGUP-DQC-X
S-81213SGUP-DQG-X
S-81214SGUP-DQN-X
S-81215SGUP-DQK-X
S-81216SGUP-DQP-X
S-81217SGUP-DQQ-X
S-81218SGUP-DQR-X
S-81219SGUP-DQT-X
S-81220SGUP-DQS-X
S-81221SGUP-DQU-X
S-81222SGUP-DQV-X
SOT-23-5*2
S-81211SG-QA-X
S-81215SG-QK-X
S-81217SG-QQ-X
S-81218SG-QR-X
S-81223SGUP-DQW-X
S-81224SGUP-DQX-X
S-81225SGUP-DQH-X
S-81226SGUP-DQY-X
S-81227SGUP-DQZ-X
S-81228SGUP-DQ0-X
S-81229SGUP-DQ2-X
S-81230SGUP-DQB-X
S-81230SGY-X
PR
S-81233SGY-X
S-81235SGY-X
S-81237SGY-X
ED
S-81232SGUP-DQ4-X
S-81233SGUP-DQF-X
S-81235SGUP-DQI-X
S-81236SGUP-DQ7-X
S-81237SGUP-DQE-X
S-81238SGUP-DQ8-X
TI
NU
S-81240SGY-X
S-81240SGUP-DQJ-X
S-81242SGUP-DIB-X
S-81243SGUP-DIC-X
S-81245SGUP-DQ5-X
S-81246SGUP-DQM-X
S-81247SGUP-DIE-X
ON
S-81243SGY-X
S-81245SGY-X
S-81246SGY-X
SC
DI
S-81250SGY-X
S-81252SGY-X
S-81250SGUP-DQD-X
S-81252SGUP-DQL-X
S-81253SGUP-DIJ-X
S-81254SGUP-DIK-X
S-81255SGUP-DIL-X
S-81256SGUP-DIM-X
S-81256SGY-X
1 In the TO-92 package, “x” differs depending upon the packaging form:
B : Loose
T, Z : Tape
*
2 In the SOT package, “x” differs depending upon the packaging form (in the SOT-23-5 package, on-tape
packed products only):
S : Stick
T : Tape (T1 and T2 are available depending upon the direction of the IC)
2
Seiko Instruments Inc.
OD
UC
T
S-81242SG-IB-X
S-81220SG-QS-X
S-81221SG-QU-X
S-81222SG-QV-X
S-81223SG-QW-X
S-81224SG-QX-X
S-81225SG-QH-X
S-81226SG-QY-X
S-81227SG-QZ-X
S-81228SG-Q0-X
S-81229SG-Q2-X
S-81230SG-QB-X
S-81231SG-Q3-X
S-81232SG-Q4-X
S-81233SG-QF-X
S-81234SG-Q6-X
S-81235SG-QI-X
S-81237SG-QE-X
S-81238SG-Q8-X
S-81240SG-QJ-X
S-81245SG-Q5-X
S-81246SG-QM-X
S-81247SG-IE-X
S-81248SG-IF-X
S-81250SG-QD-X
S-81252SG-QL-X
S-81253SG-IJ-X
HIGH-PRECISION VOLTAGE REGULATOR
S-812XXSG Series
n
Absolute Maximum Ratings
Table 2
(Unless otherwise specified: Ta=25°C)
Parameter
Input voltage
Output voltage
Output current
Power dissipation
Operating temperature
Storage temperature
Symbol
V
IN
V
OUT
I
OUT
P
D
T
opr
T
stg
TO-92
SOT-89-3
SOT-23-5
Conditions
V
OUT
≤2.6
V
V
OUT
≥2.7
V
Ratings
12
18
V
IN
+0.3 to V
SS
-0.3
100
400
500
150
-40 to +85
-40 to +125
Unit
V
V
mA
mW
°C
°C
Caution:
Keep static electricity to a minimum.
n
Electrical Characteristics
1.
S-81211SGY-X, S-81211SGUP-DQA-X, S-81211SG-QA-X (1.1-V output type)
Table 3
Parameter
Output voltage
I/O voltage difference
Line regulation 1
Line regulation 2
Load regulation
Current consumption
Input voltage
Temperature charac-
teristic of
∆V
OUT
Symbol
V
OUT
V
dif
∆V
OUT
1
∆V
OUT
2
∆V
OUT
3
I
SS
Conditions
PR
Min.
OD
UC
T
Typ.
1.100
0.05
10
10
10
1.2
±0.138
Max.
1.127
0.2
50
77
100
2.5
10
1.073
Min.
1.171
Typ.
1.200
0.04
10
10
10
1.2
±0.150
Max.
1.229
0.18
50
84
100
2.5
10
(Unless otherwise specified: Ta=25°C)
Unit
V
V
mV
mV
mV
µA
V
mV/°C
Test cir.
1
1
1
1
1
2
I
OUT
=0.5 mA
V
IN
=1.5 to 10 V
I
OUT
=0.5 mA
V
IN
=1.5 to 10 V
I
OUT
=10
µA
2. S-81212SGY-X, S-81213SGUP-DQC-X (1.2-V output type)
SC
ON
∆V
OUT
∆Ta
TI
NU
V
IN
V
IN
=1.5 V
I
OUT
=10
µA
to 0.5 mA
V
IN
=1.5 V, Unloaded
V
IN
=1.5 V, I
OUT
= 0.5 mA
Ta=-40°C to 85°C
ED
Table 4
Conditions
V
IN
=1.5 V, I
OUT
=0.5 mA
(Unless otherwise specified: Ta=25°C)
Unit
V
V
mV
mV
mV
µA
V
mV/°C
Test cir.
1
1
1
1
1
2
Parameter
Output voltage
Symbol
V
OUT
V
dif
∆V
OUT
1
∆V
OUT
2
∆V
OUT
3
I
SS
V
IN
∆V
OUT
∆Ta
I/O voltage difference
Line regulation 1
Line regulation 2
Load regulation
Current consumption
Input voltage
Temperature charac-
teristic of
∆V
OUT
DI
V
IN
=3.2 V, I
OUT
=0.5 mA
I
OUT
=0.5 mA
V
IN
=2.2 to 10 V
I
OUT
=0.5 mA
V
IN
=2.2 to 10 V
I
OUT
=10
µA
V
IN
=3.2 V
I
OUT
=10
µA
to10 mA
V
IN
=3.3 V, Unloaded
V
IN
=3.2 V, I
OUT
= 0.5 mA
Ta=-40°C to 85°C
Seiko Instruments Inc.
3
HIGH PRECISION VOLTAGE REGULATOR
S-812XXSG Series
3. S-81213SGY-X, S-81213SGUP-DQG-X (1.3-V output type)
Table 5
(Unless otherwise specified: Ta=25°C)
Parameter
Output voltage
I/O voltage difference
Line regulation 1
Line regulation 2
Load regulation
Current consumption
Input voltage
Temperature charac-
teristic of
∆V
OUT
Symbol
V
OUT
V
dif
∆V
OUT
1
∆V
OUT
2
∆V
OUT
3
I
SS
V
IN
∆V
OUT
∆Ta
V
IN
=3.3 V, I
OUT
= 0.5 mA
Ta=-40°C to 85°C
Conditions
V
IN
=3.3 V, I
OUT
=0.5 mA
I
OUT
=0.5 mA
V
IN
=2.3 to 10 V
I
OUT
=0.5 mA
V
IN
=2.3 to 10 V
I
OUT
=10
µA
V
IN
=3.3 V
I
OUT
=10
µA
to10 mA
V
IN
=3.3 V, Unloaded
Min.
1.268
Typ.
1.300
0.02
10
10
10
Max.
1.332
0.14
50
91
100
2.5
10
Unit
V
V
mV
mV
mV
µA
V
Test cir.
1
1
1
1
1
2
4. S-81214SGUP-DQN-X (1.4-V output type)
Table 6
Parameter
Output voltage
I/O voltage difference
Line regulation 1
Line regulation 2
Load regulation
Current consumption
Input voltage
Temperature charac-
teristic of
∆V
OUT
Symbol
V
OUT
V
dif
∆V
OUT
1
∆V
OUT
2
∆V
OUT
3
I
SS
V
IN
∆V
OUT
∆Ta
Conditions
PR
Min.
OD
UC
T
1.2
±0.163
mV/°C
Typ.
Max.
1.434
0.23
36
98
120
2.5
10
Unit
V
V
mV
mV
mV
µA
V
mV/°C
1.400
0.04
7
7
80
1.2
±0.175
1.500
0.03
7
7
80
1.2
±0.188
1.536
0.18
39
105
120
2.5
10
V
V
mV
mV
mV
µA
V
mV/°C
(Unless otherwise specified: Ta=25°C)
Test cir.
1
1
1
1
1
2
V
IN
=3.4 V, I
OUT
=0.5 mA
I
OUT
=0.5 mA
V
IN
=2.4 to 10 V
I
OUT
=0.5 mA
V
IN
=2.4 to 10 V
I
OUT
=1
µA
1.366
5. S-81215SGY-X, S-81215SGUP-DQK-X, S-81215SG-QK-X (1.5-V output type)
ON
Symbol
V
OUT
V
dif
SC
TI
NU
V
IN
=3.4 V
I
OUT
=1
µA
to10 mA
V
IN
=3.4 V, Unloaded
Ta=-40°C to 85°C
Conditions
V
IN
=3.4 V, I
OUT
= 0.5 mA
Parameter
Output voltage
DI
V
IN
=3.5 V, I
OUT
=0.5 mA
I
OUT
=0.5 mA
V
IN
=2.5 to 10 V
I
OUT
=0.5 mA
V
IN
=2.5 to 10 V
I
OUT
=1
µA
V
IN
=3.5 V
I
OUT
=1
µA
to10 mA
V
IN
=3.5 V, Unloaded
V
IN
=3.5 V, I
OUT
= 0.5 mA
Ta=-40°C to 85°C
ED
Table 7
(Unless otherwise specified: Ta=25°C)
Min.
Typ.
Max.
Unit
Test cir.
1.464
1
1
1
1
1
2
I/O voltage difference
Line regulation 1
Line regulation 2
Load regulation
Current consumption
Input voltage
Temperature charac-
teristic of
∆V
OUT
∆V
OUT
1
∆V
OUT
2
∆V
OUT
3
I
SS
V
IN
∆V
OUT
∆Ta
4
Seiko Instruments Inc.
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