S-817 Series
www.ablicinc.com
SUPER-SMALL PACKAGE
CMOS VOLTAGE REGULATOR
© ABLIC Inc., 1999-2015 Rev.6.2_02
1
The S-817 Series is a 3-terminal positive voltage regulator, developed using CMOS technology. Small ceramic
capacitors can be used as the output capacitor, and the S-817 Series provides stable operation with low loads
down to 1 A.
Compared with the conventional voltage regulator, it is low current consumption, and with a lineup of the super
small package (SNT-4A:1.2 mm
1.6 mm). It is optimal as a power supply of small portable device.
Features
Output voltage: 1.1 V to 6.0 V, selectable in 0.1 V step
Output voltage accuracy: 2.0%
Dropout voltage: 160 mV typ. (5.0 V output product, IOUT 10 mA)
Current consumption: During operation: 1.2 A typ., 2.5 A max.
Output current: Possible to output 50 mA (3.0 V output product, VIN5 V)*1
Possible to output 75 mA (5.0 V output product, VIN7 V)*1
Output capacitor A ceramic capacitor of 0.1 F or more can be used.
Built-in short circuit protection: Only S-817A Series
Line regulation: Stable operation at low load of 1 A
Operation temperature range: Ta 40C to 85C
Lead-free, Sn 100%, halogen-free*2
*1. Attention should be paid to the power dissipation of the package when the load is large.
*2. Refer to “ Product Name Structure” for details.
Applications
Constant-voltage power supply for battery-powered device
Constant-voltage power supply for personal communication device
Constant-voltage power supply for home electric appliance
Packages
SNT-4A
SC-82AB
SOT-23-5
SOT-89-3
TO-92
www.ablic.com
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
S-817 Series Rev.6.2_02
2
Block Diagrams
1. S-817A Series
*1
VIN
VSS
VOUT
Short circuit
protection
Reference
voltage circuit
*1. Parasitic diode
Figure 1
2. S-817B Series
*1
VIN
VSS
VOUT
Reference
voltage circuit
*1. Parasitic diode
Figure 2
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
Rev.6.2_02 S-817 Series
3
Product Name Structure
Users can select the product type, output voltage, and package type for the S-817 Series. Refer to the
“1. Product name” regarding the contents of the product name, “2. Packages” regarding the package
drawings, “3. Product name list” regarding details of the product name.
1. Product name
1. 1 S-817A Series
1. 1. 1 SNT-4A package
S-817 A xx A PF - xxx TF U
Environmental code
U : Lead-free (Sn 100%), halogen-free
IC direction in tape specifications*1
TF : SNT-4A
Product name abbreviation*2
Package abbreviation
PF : SNT-4A
Output voltage
11 to 60
(e.g. When the output voltage is
1.5 V, it is expressed as 15)
Short circuit protection
A : Yes
*1. Refer to the tape drawing.
*2. Refer to “3. Product name list”.
1. 1. 2 SC-82AB and SOT-23-5 packages
S-817 A xx A xx - xxx T2 x
Environmental code
U : Lead-free (Sn 100%), halogen-free
G : Lead-free (for details, please contact
our sales office)
IC direction in tape specifications*1
T2 : SC-82AB, SOT-23-5
Product name abbreviation*2
Package abbreviation
NB : SC-82AB
MC : SOT-23-5
Output voltage
11 to 60
(e.g. When the output voltage is
1.5 V, it is expressed as 15)
Short circuit protection
A
:Yes
*1. Refer to the tape drawing.
*2. Refer to “3. Product name list”.
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
S-817 Series Rev.6.2_02
4
1. 2 S-817B Series
1. 2. 1 SOT-23-5 and SOT-89-3 packages
S-817 B xx A xx - xxx T2 x
Environmental code
U : Lead-free (Sn 100%), halogen-free
G : Lead-free (for details, please contact
our sales office)
IC direction in tape specifications*1
T2 : SOT-23-5, SOT-89-3
Product name abbreviation*2
Package abbreviation
MC : SOT-23-5
UA : SOT-89-3
Output voltage
11 to 60
(e.g. When the output voltage is
1.5 V, it is expressed as 15)
Short circuit protection
B : No
*1. Refer to the tape drawing.
*2. Refer to “3. Product name list”.
1. 2. 2 TO-92 package
S-817 B xx A Y - x 2 - U
Environmental code
U : Lead-free (Sn 100%), halogen-free
Packing form
B : Bulk
Z : Tape and ammo
Package abbreviation
Y : TO-92
Output voltage
11 to 60
(e.g. When the output voltage is
1.5 V, it is expressed as 15)
Short circuit protection
B : No
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
Rev.6.2_02 S-817 Series
5
2. Packages
Package name Drawing code
Package Tape Reel Zigzag Land
SNT-4A PF004-A-P-SD PF004-A-C-SD PF004-A-R-SD PF004-A-L-SD
SC-82AB NP004-A-P-SD
NP004-A-C-SD
NP004-A-C-S1 NP004-A-R-SD
SOT-23-5 MP005-A-P-SD MP005-A-C-SD MP005-A-R-SD
SOT-89-3 UP003-A-P-SD UP003-A-C-SD UP003-A-R-SD
TO-92 (Bulk) YS003-D-P-SD
TO-92 (Tape and ammo)
YZ003-E-P-SD YZ003-E-C-SD YZ003-E-Z-SD
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
S-817 Series Rev.6.2_02
6
3
. Product name list
3. 1 S-817A Series
Table 1
Output voltage SNT-4A SC-82AB SOT-23-5
1.1 V 2.0% S-817A11APF-CUATFU S-817A11ANB-CUAT2x
1.2 V 2.0% S-817A12APF-CUBTFU S-817A12ANB-CUBT2x
1.3 V 2.0% S-817A13APF-CUCTFU S-817A13ANB-CUCT2x
1.4 V 2.0% S-817A14APF-CUDTFU S-817A14ANB-CUDT2x S-817A14AMC-CUDT2x
1.5 V 2.0% S-817A15APF-CUETFU S-817A15ANB-CUET2x
1.6 V 2.0% S-817A16APF-CUFTFU S-817A16ANB-CUFT2x S-817A16AMC-CUFT2x
1.7 V 2.0% S-817A17APF-CUGTFU S-817A17ANB-CUGT2x
1.8 V 2.0% S-817A18APF-CUHTFU S-817A18ANB-CUHT2x
1.9 V 2.0% S-817A19APF-CUITFU S-817A19ANB-CUIT2x
2.0 V 2.0% S-817A20APF-CUJTFU S-817A20ANB-CUJT2x
2.1 V 2.0% S-817A21APF-CUKTFU S-817A21ANB-CUKT2x
2.2 V 2.0% S-817A22APF-CULTFU S-817A22ANB-CULT2x
2.3 V 2.0% S-817A23APF-CUMTFU S-817A23ANB-CUMT2x
2.4 V 2.0% S-817A24APF-CUNTFU S-817A24ANB-CUNT2x
2.5 V 2.0% S-817A25APF-CUOTFU S-817A25ANB-CUOT2x
2.6 V 2.0% S-817A26APF-CUPTFU S-817A26ANB-CUPT2x
2.7 V 2.0% S-817A27APF-CUQTFU S-817A27ANB-CUQT2x
2.8 V 2.0% S-817A28APF-CURTFU S-817A28ANB-CURT2x
2.9 V 2.0% S-817A29APF-CUSTFU S-817A29ANB-CUST2x
3.0 V 2.0% S-817A30APF-CUTTFU S-817A30ANB-CUTT2x
3.1 V 2.0% S-817A31APF-CUUTFU S-817A31ANB-CUUT2x
3.2 V 2.0% S-817A32APF-CUVTFU S-817A32ANB-CUVT2x
3.3 V 2.0% S-817A33APF-CUWTFU S-817A33ANB-CUWT2x
3.4 V 2.0% S-817A34APF-CUXTFU S-817A34ANB-CUXT2x
3.5 V 2.0% S-817A35APF-CUYTFU S-817A35ANB-CUYT2x
3.6 V 2.0% S-817A36APF-CUZTFU S-817A36ANB-CUZT2x
3.7 V 2.0% S-817A37APF-CVATFU S-817A37ANB-CVAT2x
3.8 V 2.0% S-817A38APF-CVBTFU S-817A38ANB-CVBT2x
3.9 V 2.0% S-817A39APF-CVCTFU S-817A39ANB-CVCT2x
4.0 V 2.0% S-817A40APF-CVDTFU S-817A40ANB-CVDT2x
4.1 V 2.0% S-817A41APF-CVETFU S-817A41ANB-CVET2x
4.2 V 2.0% S-817A42APF-CVFTFU S-817A42ANB-CVFT2x
4.3 V 2.0% S-817A43APF-CVGTFU S-817A43ANB-CVGT2x
4.4 V 2.0% S-817A44APF-CVHTFU S-817A44ANB-CVHT2x
4.5 V 2.0% S-817A45APF-CVITFU S-817A45ANB-CVIT2x
4.6 V 2.0% S-817A46APF-CVJTFU S-817A46ANB-CVJT2x
4.7 V 2.0% S-817A47APF-CVKTFU S-817A47ANB-CVKT2x
4.8 V 2.0% S-817A48APF-CVLTFU S-817A48ANB-CVLT2x
4.9 V 2.0% S-817A49APF-CVMTFU S-817A49ANB-CVMT2x
5.0 V 2.0% S-817A50APF-CVNTFU S-817A50ANB-CVNT2x
5.1 V 2.0% S-817A51APF-CVOTFU S-817A51ANB-CVOT2x
5.2 V 2.0% S-817A52APF-CVPTFU S-817A52ANB-CVPT2x
5.3 V 2.0% S-817A53APF-CVQTFU S-817A53ANB-CVQT2x
5.4 V 2.0% S-817A54APF-CVRTFU S-817A54ANB-CVRT2x
5.5 V 2.0% S-817A55APF-CVSTFU S-817A55ANB-CVST2x
5.6 V 2.0% S-817A56APF-CVTTFU S-817A56ANB-CVTT2x
5.7 V 2.0% S-817A57APF-CVUTFU S-817A57ANB-CVUT2x
5.8 V 2.0% S-817A58APF-CVVTFU S-817A58ANB-CVVT2x
5.9 V 2.0% S-817A59APF-CVWTFU S-817A59ANB-CVWT2x
6.0 V 2.0% S-817A60APF-CVXTFU S-817A60ANB-CVXT2x
Remark 1. Please contact our sales office for products other than the above.
2. x: G or U
3. Please select products of environmental code = U for Sn 100%, halogen-free products.
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
Rev.6.2_02 S-817 Series
7
3. 2 S-817B Series
Table 2
Output voltage SOT-23-5 SOT-89-3 TO-92*1
1.1 V 2.0% S-817B11AMC-CWAT2x S-817B11AUA-CWAT2x S-817B11AY-n2-U
1.2 V 2.0% S-817B12AMC-CWBT2x S-817B12AUA-CWBT2x S-817B12AY-n2-U
1.3 V 2.0% S-817B13AMC-CWCT2x S-817B13AUA-CWCT2x S-817B13AY-n2-U
1.4 V 2.0% S-817B14AMC-CWDT2x S-817B14AUA-CWDT2x S-817B14AY-n2-U
1.5 V 2.0% S-817B15AMC-CWET2x S-817B15AUA-CWET2x S-817B15AY-n2-U
1.6 V 2.0% S-817B16AMC-CWFT2x S-817B16AUA-CWFT2x S-817B16AY-n2-U
1.7 V 2.0% S-817B17AMC-CWGT2x S-817B17AUA-CWGT2x S-817B17AY-n2-U
1.8 V 2.0% S-817B18AMC-CWHT2x S-817B18AUA-CWHT2x S-817B18AY-n2-U
1.9 V 2.0% S-817B19AMC-CWIT2x S-817B19AUA-CWIT2x S-817B19AY-n2-U
2.0 V 2.0% S-817B20AMC-CWJT2x S-817B20AUA-CWJT2x S-817B20AY-n2-U
2.1 V 2.0% S-817B21AMC-CWKT2x S-817B21AUA-CWKT2x S-817B21AY-n2-U
2.2 V 2.0% S-817B22AMC-CWLT2x S-817B22AUA-CWLT2x S-817B22AY-n2-U
2.3 V 2.0% S-817B23AMC-CWMT2x S-817B23AUA-CWMT2x S-817B23AY-n2-U
2.4 V 2.0% S-817B24AMC-CWNT2x S-817B24AUA-CWNT2x S-817B24AY-n2-U
2.5 V 2.0% S-817B25AMC-CWOT2x S-817B25AUA-CWOT2x S-817B25AY-n2-U
2.6 V 2.0% S-817B26AMC-CWPT2x S-817B26AUA-CWPT2x S-817B26AY-n2-U
2.7 V 2.0% S-817B27AMC-CWQT2x S-817B27AUA-CWQT2x S-817B27AY-n2-U
2.8 V 2.0% S-817B28AMC-CWRT2x S-817B28AUA-CWRT2x S-817B28AY-n2-U
2.9 V 2.0% S-817B29AMC-CWST2x S-817B29AUA-CWST2x S-817B29AY-n2-U
3.0 V 2.0% S-817B30AMC-CWTT2x S-817B30AUA-CWTT2x S-817B30AY-n2-U
3.1 V 2.0% S-817B31AMC-CWUT2x S-817B31AUA-CWUT2x S-817B31AY-n2-U
3.2 V 2.0% S-817B32AMC-CWVT2x S-817B32AUA-CWVT2x S-817B32AY-n2-U
3.3 V 2.0% S-817B33AMC-CWWT2x S-817B33AUA-CWWT2x S-817B33AY-n2-U
3.4 V 2.0% S-817B34AMC-CWXT2x S-817B34AUA-CWXT2x S-817B34AY-n2-U
3.5 V 2.0% S-817B35AMC-CWYT2x S-817B35AUA-CWYT2x S-817B35AY-n2-U
3.6 V 2.0% S-817B36AMC-CWZT2x S-817B36AUA-CWZT2x S-817B36AY-n2-U
3.7 V 2.0% S-817B37AMC-CXAT2x S-817B37AUA-CXAT2x S-817B37AY-n2-U
3.8 V 2.0% S-817B38AMC-CXBT2x S-817B38AUA-CXBT2x S-817B38AY-n2-U
3.9 V 2.0% S-817B39AMC-CXCT2x S-817B39AUA-CXCT2x S-817B39AY-n2-U
4.0 V 2.0% S-817B40AMC-CXDT2x S-817B40AUA-CXDT2x S-817B40AY-n2-U
4.1 V 2.0% S-817B41AMC-CXET2x S-817B41AUA-CXET2x S-817B41AY-n2-U
4.2 V 2.0% S-817B42AMC-CXFT2x S-817B42AUA-CXFT2x S-817B42AY-n2-U
4.3 V 2.0% S-817B43AMC-CXGT2x S-817B43AUA-CXGT2x S-817B43AY-n2-U
4.4 V 2.0% S-817B44AMC-CXHT2x S-817B44AUA-CXHT2x S-817B44AY-n2-U
4.5 V 2.0% S-817B45AMC-CXIT2x S-817B45AUA-CXIT2x S-817B45AY-n2-U
4.6 V 2.0% S-817B46AMC-CXJT2x S-817B46AUA-CXJT2x S-817B46AY-n2-U
4.7 V 2.0% S-817B47AMC-CXKT2x S-817B47AUA-CXKT2x S-817B47AY-n2-U
4.8 V 2.0% S-817B48AMC-CXLT2x S-817B48AUA-CXLT2x S-817B48AY-n2-U
4.9 V 2.0% S-817B49AMC-CXMT2x S-817B49AUA-CXMT2x S-817B49AY-n2-U
5.0 V 2.0% S-817B50AMC-CXNT2x S-817B50AUA-CXNT2x S-817B50AY-n2-U
5.1 V 2.0% S-817B51AMC-CXOT2x S-817B51AUA-CXOT2x S-817B51AY-n2-U
5.2 V 2.0% S-817B52AMC-CXPT2x S-817B52AUA-CXPT2x S-817B52AY-n2-U
5.3 V 2.0% S-817B53AMC-CXQT2x S-817B53AUA-CXQT2x S-817B53AY-n2-U
5.4 V 2.0% S-817B54AMC-CXRT2x S-817B54AUA-CXRT2x S-817B54AY-n2-U
5.5 V 2.0% S-817B55AMC-CXST2x S-817B55AUA-CXST2x S-817B55AY-n2-U
5.6 V 2.0% S-817B56AMC-CXTT2x S-817B56AUA-CXTT2x S-817B56AY-n2-U
5.7 V 2.0% S-817B57AMC-CXUT2x S-817B57AUA-CXUT2x S-817B57AY-n2-U
5.8 V 2.0% S-817B58AMC-CXVT2x S-817B58AUA-CXVT2x S-817B58AY-n2-U
5.9 V 2.0% S-817B59AMC-CXWT2x S-817B59AUA-CXWT2x S-817B59AY-n2-U
6.0 V 2.0% S-817B60AMC-CXXT2x S-817B60AUA-CXXT2x S-817B60AY-n2-U
*1. “n” changes according to the packing form in TO-92.
B: Bulk, Z: Tape and ammo.
Remark 1. x: G or U
2. Please select products of environmental code = U for Sn 100%, halogen-free products.
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
S-817 Series Rev.6.2_02
8
Pin Configurations
SNT-4A
Top view
1 4
2 3
Table 3
Pin No. Symbol Description
1 VOUT Output voltage pin
2 VIN Input voltage pin
3 VSS GND pin
4 NC
*1
No connection
*1. The NC pin is electrically open.
The NC pin can be connected to the VIN pin or the VSS pin.
Figure 3
4 3
1 2
SC-82AB
Top view
Table 4
Pin No. Symbol Description
1 VSS GND pin
2 VIN Input voltage pin
3 VOUT Output voltage pin
4 NC
*1
No connection
*1. The NC pin is electrically open.
The NC pin can be connected to the VIN pin or the VSS pin.
Figure 4
SOT-23-5
Top view
5
4
3
2
1
Table 5
Pin No. Symbol Description
1 VSS GND pin
2 VIN Input voltage pin
3 VOUT Output voltage pin
4 NC*1 No connection
5 NC*1 No connection
*1. The NC pin is electrically open.
The NC pin can be connected to the VIN pin or the VSS pin.
Figure 5
SOT-89-3
Top view
3
2
1
Table 6
Pin No. Symbol Description
1 VSS GND pin
2 VIN Input voltage pin
3 VOUT Output voltage pin
Figure 6
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
Rev.6.2_02 S-817 Series
9
TO-92
Bottom view
1 3 2
Table 7
Pin No. Symbol Description
1 VSS GND pin
2 VIN Input voltage pin
3 VOUT Output voltage pin
Figure 7
Absolute Maximum Ratings
Table 8
(Ta
25C unless otherwise specified)
Item Symbol Absolute Maximum Rating Unit
Input voltage VIN VSS
0.3 to VSS
12 V
Output voltage VOUT VSS
0.3 to VIN
0.3 V
Power
dissipation
SNT-4A
PD
300*1 mW
SC-82AB 150 (When not mounted on board) mW
400*1 mW
SOT-23-5 250 (When not mounted on board) mW
600*1 mW
SOT-89-3 500 (When not mounted on board) mW
1000*1 mW
TO-92 400 (When not mounted on board) mW
800*1 mW
Operation temperature range Topr
40 to
85 C
Storage temperature Tstg
40 to
125 C
*1. When mounted on board
[Mounted board]
(1) Board size : 114.3 mm 76.2 mm t1.6 mm
(2) Board name : JEDEC STANDARD51-7
Caution The absolute maximum ratings are rated values exceeding which the product could suffer
physical damage. These values must therefore not be exceeded under any conditions.
050 100 150
1200
800
0
Power dissipation (PD) [mW]
A
mbient temperature (Ta) [C]
SOT-89-3
400
SNT-4
1000
200
600
TO-92
SOT-23-5
SC-82AB
Figure 8 Power dissipation of the package (When mounted on board)
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
S-817 Series Rev.6.2_02
10
Electrical Characteristics
1. S-817A Series
Table 9
(Ta
25C unless otherwise specified)
Item Symbol Condition Min. Typ. Max. Unit
Measur-
ement
circuit
Output voltage
*1
V
OUT(E)
V
IN
V
OUT(S)
2 V, I
OUT
10 mA V
OUT(S)
0.98 V
OUT(S)
V
OUT(S)
1.02 V 1
Output current
*2
I
OUT
V
OUT(S)
2 V
V
IN
10 V
1.1 V
V
OUT
(
S
)
1.9 V 20
m
A
3
2.0 V
V
OUT
(
S
)
2.9 V 35
3.0 V
V
OUT
(
S
)
3.9 V 50
4.0 V
V
OUT
(
S
)
4.9 V 65
5.0 V
V
OUT
(
S
)
6.0 V 75
Dropout voltage
*3
V
drop
I
OUT
10 mA
1.1 V
V
OUT
(
S
)
1.4 V
0.92 1.58 V 1
1.5 V
V
OUT
(
S
)
1.9 V
0.58 0.99
2.0 V
V
OUT
(
S
)
2.4 V
0.40 0.67
2.5 V
V
OUT
(
S
)
2.9 V
0.31 0.51
3.0 V
V
OUT
(
S
)
3.4 V
0.25 0.41
3.5 V
V
OUT
(
S
)
3.9 V
0.22 0.35
4.0 V
V
OUT
(
S
)
4.4 V
0.19 0.30
4.5 V
V
OUT
(
S
)
4.9 V
0.18 0.27
5.0 V
V
OUT
(
S
)
5.4 V
0.16 0.25
5.5 V
V
OUT
(
S
)
6.0 V
0.15 0.23
Line regulation 1
V
OUT1
V
OUT(S)
1 V
V
IN
10 V,
I
OUT
1 mA
5 20 mV
Line regulation 2
V
OUT2
V
OUT(S)
1 V
V
IN
10 V,
I
OUT
1
A
5 20
Load regulation
V
OUT3
V
IN
V
OUT(S)
2 V
1.1 V
V
OUT(S)
1.9 V,
1
A
I
OUT
10 m
A
5 20
2.0 V
V
OUT(S)
2.9 V,
1
A
I
OUT
20 m
A
10 30
3.0 V
V
OUT(S)
3.9 V,
1
A
I
OUT
30 m
A
20 45
4.0 V
V
OUT(S)
4.9 V,
1
A
I
OUT
40 m
A
25 65
5.0 V
V
OUT(S)
6.0 V,
1
A
I
OUT
50 mA
35 80
Output voltage
temperature coefficient
*4
OUT
OUT
VTa
V
V
IN
V
OUT(S)
1 V, I
OUT
10 mA,
40
C
Ta
85
C
100
ppm
/
C
Current consumption I
SS
V
IN
V
OUT
(
S
)
2 V, no load
1.2 2.5
A
2
Input voltage V
IN
10 V 1
Short current limi
t
I
OS
V
IN
V
OUT
(
S
)
2 V, VOUT pin
0 V
40
m
A
3
*1. V
OUT(S)Set output voltage
V
OUT(E)Actual output voltage
Output voltage when fixing IOUT(10 mA) and inputting VOUT(S)2.0 V.
*2. The output current at which the output voltage becomes 95% of VOUT(E) after gradually increasing the output
current.
*3. V
drop VIN1(VOUT(E) 0.98)
V
IN1 is the input voltage at which the output voltage becomes 98% of VOUT(E) after gradually decreasing the
input voltage.
*4. A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.
 
1000Cppm/
VTa
V
VVCmV/
Ta
V
OUT
OUT
OUT(S)
OUT
3*2*1*
*1. Change in temperature of output voltage
*2. Set output voltage
*3. Output voltage temperature coefficient
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
Rev.6.2_02 S-817 Series
11
2. S-817B Series
Table 10
(Ta
25C unless otherwise specified)
Item Symbol Condition Min. Typ. Max. Unit
Measur-
ement
circuit
Output voltage
*1
V
OUT(E)
V
IN
V
OUT(S)
2 V, I
OUT
10 mA V
OUT(S)
0.98 V
OUT(S)
V
OUT(S)
1.02 V 1
Output current
*2
I
OUT
V
OUT
(
S
)
2 V 1.1 V
V
OUT
(
S
)
1.9 V 20
m
A
3
V
IN
10 V 2.0 V
V
OUT
(
S
)
2.9 V 35
3.0 V
V
OUT
(
S
)
3.9 V 50
4.0 V
V
OUT
(
S
)
4.9 V 65
5.0 V
V
OUT
(
S
)
6.0 V 75
Dropout voltage
*3
V
drop
I
OUT
10
m
A
1.1 V
V
OUT(S)
1.4 V
0.92 1.58 V 1
1.5 V
V
OUT
(
S
)
1.9 V
0.58 0.99
2.0 V
V
OUT
(
S
)
2.4 V
0.40 0.67
2.5 V
V
OUT
(
S
)
2.9 V
0.31 0.51
3.0 V
V
OUT
(
S
)
3.4 V
0.25 0.41
3.5 V
V
OUT
(
S
)
3.9 V
0.22 0.35
4.0 V
V
OUT
(
S
)
4.4 V
0.19 0.30
4.5 V
V
OUT
(
S
)
4.9 V
0.18 0.27
5.0 V
V
OUT
(
S
)
5.4 V
0.16 0.25
5.5 V
V
OUT
(
S
)
6.0 V
0.15 0.23
Line regulation 1
V
OUT1
V
OUT(S)
1 V
V
IN
10 V,
I
OU
T
1 mA
5 20 mV
Line regulation 2
V
OUT2
V
OUT
(
S
)
1 V
V
IN
10 V, I
OU
T
1
A
5 20
Load regulation
V
OUT3
V
IN
V
OUT(S)
2 V
1.1 V
V
OUT(S)
1.9 V,
1
A
I
OUT
10 mA
5 20
2.0 V
V
OUT(S)
2.9 V,
1
A
I
OUT
20 m
A
10 30
3.0 V
V
OUT(S)
3.9 V,
1
A
I
OUT
30 m
A
20 45
4.0 V
V
OUT(S)
4.9 V,
1
A
I
OUT
40 m
A
25 65
5.0 V
V
OUT(S)
6.0 V,
1
A
I
OUT
50 m
A
35 80
Output voltage
temperature coefficient
*4
OUT
OUT
VTa
V
V
IN
V
OUT(S)
1 V, I
OUT
10 mA,
40
C
Ta
85
C
100
ppm
/
C
Current consumption I
SS
V
IN
V
OUT
(
S
)
2 V, no load
1.2 2.5
A
2
Input voltage V
IN
10 V 1
*1. V
OUT(S)Set output voltage
V
OUT(E)Actual output voltage
Output voltage when fixing IOUT(10 mA) and inputting VOUT(S)2.0 V.
*2. The output current at which the output voltage becomes 95% of VOUT(E) after gradually increasing the output
current.
*3. V
drop VIN1(VOUT(E) 0.98)
V
IN1 is the input voltage at which the output voltage becomes 98% of VOUT(E) after gradually decreasing the
input voltage.
*4. A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.
 
1000Cppm/
VTa
V
VVCmV/
Ta
V
OUT
OUT
OUT(S)
OUT
3*2*1*
*1. Change in temperature of output voltage
*2. Set output voltage
*3. Output voltage temperature coefficient
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
S-817 Series Rev.6.2_02
12
Measurement Circuits
1.
VSS
VOUTVIN
V
A
Figure 9
2.
VSS
VOUT
VIN
A
+
Figure 10
3.
VSS
VOUT
VIN
V
A
Figure 11
Standard Circuit
VSS
VOUT VIN
CIN
*1 CL
*2
Input Output
GND
Single GND
*
1. CIN is a capacitor for stabilizing the input.
*
2. In addition to tantalum capacitor, a ceramic capacitor of 0.1 F or more can be used as CL.
Figure 12
Caution The above connection diagram and constant will not guarantee successful operation.
Perform through evaluation using the actual application to set the constant.
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
Rev.6.2_02 S-817 Series
13
Explanation of Terms
1. Low ESR
ESR is the abbreviation for Equivalent Series Resistance.
Low ESR can be used as the output capacitor (CL) in the S-817 Series.
2. Output voltage (VOUT)
The accuracy of the output voltage is 2.0% guaranteed under the specified conditions for input voltage,
which differs depending upon the product items, output current, and temperature.
Caution If the above conditions change, the output voltage value may vary and exceed the
accuracy range of the output voltage. Refer to “ Electrical Characteristics” and
“ Characteristics (Typical Data)” for details.
3. Line regulations 1 and 2 (VOUT1, VOUT2)
Indicate the input voltage dependencies of output voltage. That is, the values show how much the output
voltage changes due to a change in the input voltage with the output current remained unchanged.
4. Load regulation (VOUT3)
Indicates the output current dependencies of output voltage. That is, the values show how much the
output voltage changes due to a change in the output current with the input voltage remained unchanged.
5. Dropout voltage (Vdrop)
Indicates the difference between input voltage (VIN1) and the output voltage when; decreasing input
voltage (VIN) gradually until the output voltage has dropped out to the value of 98% of the actual output
voltage (VOUT(E)).
Vdrop VIN1(VOUT(E) 0.98)
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
S-817 Series Rev.6.2_02
14
6. Output voltage temperature coefficient
VOUT
Ta VOUT
The shaded area in Figure 13 is the range where VOUT varies in the operation temperature range when
the output voltage temperature coefficient is 100 ppm/C.
VOUT
(
E
)
*1
Example of S-817A15 typ. product
40
25
0.15 mV/C
VOUT
[V]
*1. V
OUT(E) is the value of the output voltage measured at Ta = 25C.
85 Ta [C]
0.15 mV/C
Figure 13
A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.
VOUT
Ta []
mV/°C *1 = VOUT(S) []
V*2 VOUT
Ta VOUT
[]
ppm/°C *3 1000
*1. Change in temperature of output voltage
*2. Set output voltage
*3. Output voltage temperature coefficient
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
Rev.6.2_02 S-817 Series
15
Operation
1. Basic Operation
Figure 14 shows the block diagram of the S-817 Series.
The error amplifier compares the reference voltage (Vref) with feedback voltage (Vfb), which is the output
voltage resistance-divided by feedback resistors (Rs and Rf). It supplies the gate voltage necessary to
maintain the constant output voltage which is not influenced by the input voltage and temperature
change, to the output transistor.
*1
VSS
Current
supply


Vfb
Vref
VIN
VOUT
Rf
Rs
Error
amplifier
Reference voltage
circuit
*1. Parasitic diode
Figure 14
2. Output Transistor
In the S-817 Series, a low on-resistance P-channel MOS FET is used as the output transistor.
Be sure that VOUT does not exceed VIN0.3 V to prevent the voltage regulator from being damaged due to
reverse current flowing from VOUT pin through a parasitic diode to VIN pin, when the potential of VOUT
became higher than VIN.
3. Short Circuit Protection
The S-817A Series incorporates a short circuit protection to protect the output transistor against short
circuit between VOUT pin and VSS pin. The short-circuit protection controls output current against VOUT
voltage as shown in “1. Output Voltage vs. Output Current (When load current increases)” in
“ Characteristics (Typical Data)”, and suppresses output current at about 40 mA even if VOUT and
VSS pins are short-circuited.
The short-circuit protection can not be a thermal protection at the same time. Attention should be paid to
the input voltage and the load current under the actual condition so as not to exceed the power
dissipation of the package including the case for short-circuit.
When the output current is large and the difference between input and output voltage is large even if not
shorted, the short-circuit protection works and the output current is suppressed to the specified value. For
details, refer to “3. Maximum Output Current vs. Input Voltage” in “ Characteristics (Typical Data)”.
In addition, the S-817B Series is removing a short-circuit protection, and is the product which enabled it
to pass large current.
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
S-817 Series Rev.6.2_02
16
Selection of Output Capacitor (CL)
To stabilize operation against variation in output load, an output capacitor (CL) must be mounted between
VOUT and VSS in the S-817 Series because the phase is compensated with the help of the internal phase
compensation circuit and the ESR of the output capacitor.
When selecting a ceramic or an OS capacitor, the capacitance should be 0.1 F or more, and when
selecting a tantalum or an aluminum electrolytic capacitor, the capacitance should be 0.1 F or more and
ESR of 30 or less is required.
Attention should be especially paid when an aluminum electrolytic capacitor is used since the ESR may
increase at low temperature and has a possibility that oscillation may become large. Sufficient evaluation
including temperature characteristics is indispensable. Overshoot and undershoot characteristics differ
depending upon the type of the output capacitor. Refer to CL dependencies of “1. Transient Response
Characteristics (Typical data, Ta25C)” in “ Reference Data”.
Application Circuits
1. Output Current Boosting Circuit
R2
R1
Tr1
GND
VOUT
VIN
VSS
VIN
VOUT
CL
S-817
Series
CIN
Figure 15
As shown in Figure 15, the output current can be boosted by externally attaching a PNP transistor. The
base current of the PNP transistor is controlled so that output voltage (VOUT) goes the voltage specified
in the S-817 Series when base-emitter voltage (VBE) necessary to turn on the PNP transistor is obtained
between input voltage (VIN) and the S-817 Series power source pin (VIN).
The following are tips and hints for selecting and ensuring optimum use of external parts
PNP transistor (Tr1):
1. Set hFE to approx. 100 to 400.
2. Confirm that no problem occurs due to power dissipation under normal operation conditions.
Resistor (R1):
Generally set R1 to 1 k VOUT(S) (the voltage set in the S-817 Series) or more.
Output capacitor (CL):
Output capacitor (CL) is effective in minimizing output fluctuation at power-on or due to power or
load fluctuation, but oscillation might occur. Always connect resistor R2 in series to output
capacitor (CL).
Resistor (R2): Set R2 to 2 VOUT(S) or more.
DO NOT attach a capacitor between the S-817 Series power source (VIN) and GND pins or
between base-emitter of the PNP transistor to avoid oscillation.
To improve transient response characteristics of the output current boosting circuit shown in
Figure 15, check that no problem occurs due to output fluctuation at power-on or due to power
or load fluctuation under normal operating conditions.
Pay attention to the short current limit circuit incorporated into the S-817 Series because it does
not function as a shortcircuiting protection circuit for this boosting circuit.
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
Rev.6.2_02 S-817 Series
17
The following graphs show the examples of input-output voltage characteristics (Ta25C, typ.) in the
output current boosting circuit as seen in Figure 15:
1
. 1 S-817A11ANB/S-817B11AMC
1
. 2 S-817A50ANB/S-817B50AMC
Tr1 : 2SA1213Y, R1 : 1 k, CL : 10
F,
R2 : 2
Tr1 : 2SA1213Y, R1 : 200 , CL : 10
F,
R2 : 10
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4
VIN (V)
VOUT (V)
800 mA
600 mA
400 mA
200 mA
10 mA
50 mA
100 mA
1 mA
4.60
4.70
4.80
4.90
5.00
5.10
5.20
5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9
VIN (V)
VOUT (V)
100 mA
50 mA
10 mA
5 mA
800 mA
600 mA
400 mA
200 mA
2. Constant Current Circuits
2
. 1 Constant Current Circuit
GND
RL
VOUT
VIN
V
IN
VO
V
O
I
O
C
IN
VSS
S-817
Series
Device
Figure 16
2
. 2 Constant Current Boosting Circuit
I
O
R1
GND
RL
VOUT
V
IN
VO
C
IN
VSS
S-817
Tr1
V
O
Series
Device
Figure 17
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
S-817 Series Rev.6.2_02
18
The S-817 Series can be configured as a constant current circuit. Refer to Figure 16 and Figure 17.
Constant amperage (IO) is calculated using the following equation (VOUT(E): Actual output voltage):
IO (VOUT(E) RL) ISS.
Note that by using a circuit in Figure 16, it is impossible to set the better driving ability to the constant
amperage (IO) than the S-817 Series basically has.
To gain the driving ability which exceeds the S-817 Series, there’s a way to combine a constant current
circuit and a current boosting circuit, as seen in Figure 17.
The maximum input voltage for a constant current circuit is 10 V + the voltage for device (VO).
It is not recommended to add a capacitor between the VIN (power supply) and VSS pin or the VOUT
(output) and VSS pin because the rush current flows at power-on.
The following is a characteristics example of input voltage between VIN and VO vs. IO current (Typ. Ta =
25C) in constant current boosting circuit in Figure 17.
I
nput voltage - IO current between VIN and VO
S-817A11ANB, S-817B11AMC, Tr : 2SK1213Y, R1 : 1 k
, VO
2 V
0.00
0.10
0.20
0.30
0.40
0.50
0.60
1.4 1.6 1.8 2 2.2 2.4
VIN
VO(V)
IO(A)
RL
1.83
2.2 
2.75
3.67
5.5
11
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
Rev.6.2_02 S-817 Series
19
3. Output Voltage Adjustment Circuit (Only for S-817B Series (Product without short circuit
protection))
GND
VO
R2
R1
VOUT
VIN VIN
CL
C1
CIN
VSS
S-817
Series
Figure 18
The output voltage can be boosted by using the configuration shown in Figure 18. The output voltage
(VO) can be calculated using the following equation (VOUT(E):Actual output voltage):
V
O VOUT(E) (R1 R2) R1 R2 ISS
Set the values of resistors R1 and R2 so that the S-817 Series is not affected by current consumption
(ISS).
Capacitor C1 is effective in minimizing output fluctuation at power-on or due to power or load fluctuation.
Determine the optimum value on your actual device. As shown in Figure 18, a capacitor must be
mounted between VIN and GND, and between VOUT and GND. But it is not also recommended to
attach a capacitor between the S-817 Series power source VIN and VSS pin or between output VOUT
and VSS pin because output fluctuation or oscillation at power-on might occur.
Precautions
Wiring patterns for the VIN pin, the VOUT pin and GND should be designed so that the impedance is
low. When mounting an output capacitor between the VOUT and VSS pins (CL) and a capacitor for
stabilizing the input between the VIN and VSS pins (CIN), the distance from the capacitors to these pins
should be as short as possible.
Note that generally the output voltage may increase when a series regulator is used at low load current
(1.0 A or less).
Generally a series regulator may cause oscillation, depending on the selection of external parts. The
following conditions are recommended for the S-817 Series. However, be sure to perform sufficient
evaluation under the actual usage conditions for selection, including evaluation of temperature
characteristics.
Output capacitor (CL) : 0.1 F or more
Equivalent Series Resistance (ESR) : 30 or less
Input series resistance (RIN) : 10 or less
The voltage regulator may oscillate when the impedance of the power supply is high and the input
capacitance is small or an input capacitor is not connected.
Overshoot may occur in the output voltage momentarily if the voltage is rapidly raised at power-on or
when the power supply fluctuates. Sufficiently evaluate the output voltage at power-on with the actual
device.
The application conditions for the input voltage, the output voltage, and the load current should not
exceed the package power dissipation.
Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in
electrostatic protection circuit.
ABLIC Inc. claims no responsibility for any disputes arising out of or in connection with any infringement
by products including this IC of patents owned by a third party.
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
S-817 Series Rev.6.2_02
20
Characteristics (Typical Data)
1. Output Voltage vs. Output Current (When load current increases)
(a) S-817A Series
S-817A11A (Ta=25 ° C)
0.0
0.3
0.6
0.9
1.2
0 20 40 60 80
I
OUT (mA)
V
OUT
(V)
V
IN
=
1.5V
2.1V
3.1V
4.1V
8V
S-817A20A (Ta=25° C)
0.0
0.5
1.0
1.5
2.0
2.5
0 30 60 90 120
I
OUT (mA)
V
IN=
2.4V
3V
10V
5V
4V
V
OUT
(V)
S-817A30A (Ta=25 ° C)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0 30 60 90 120 150
IOUT (mA)
4V
V
IN
=
3.4V
5V
6V
10V
V
OUT
(V)
S-817A50A (Ta=25 ° C)
0.0
1.0
2.0
3.0
4.0
5.0
0 40 80 120 160 200
IOUT (mA)
V
IN
=5.4V
6V
7V
8V
10V
V
OUT
(V)
(b) S-817B Series
S-817B11A (Ta=25°C)
0.0
0.3
0.6
0.9
1.2
0 50 100 150 200 250
IOUT (mA)
VOUT
(V)
VIN=
1.5V
2.1V
3.1V
4.1V
8V
S-817B20A (Ta=25°C)
0.0
0.5
1.0
1.5
2.0
2.5
0 50 100 150 200 250 300
IOUT (mA)
VOUT
(V)
V
IN
=2.4V
3V 4V
5V
10V
S-817B30A (Ta=25°C)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0 50 100 150 200 250 300
IOUT (mA)
VOUT
(V)
VIN=
3.4V
4V
5V 6V
10V
S-817B50A (Ta=25°C)
0.0
1.0
2.0
3.0
4.0
5.0
0 50 100 150 200 250 300
IOUT (mA)
VOUT
(V)
VIN =5.4V
6V
7V 8V
10V