S-1131 Series
www.sii-ic.com
© Seiko Instruments Inc., 2002-2010
HIGH RIPPLE-REJECTION AND LOW DROPOUT
MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.0
_00
The S-1131 Series is a positive voltage regulator with a low dropout voltage, high output voltage accuracy, and
low current consumption developed based on CMOS technology.
A built-in low on-resistance transistor provides a low dropout voltage and large output current, and a built-in
overcurrent protector prevents the load current from exceeding the current capacitance of the output transistor.
An ON/OFF circuit ensures a long battery life, and small SOT-89-3, SOT-89-5 and 6-Pin HSON(A) packages
realize high-density mounting.
Features
1.5 V to 5.5 V, selectable in 0.1 V steps.
±1.0%
250 mV typ. (3.0 V output product, I
OUT
=
100 mA)
During operation: 35
μA
typ., 65
μA
max.
During shutdown: 0.1
μA
typ., 1.0
μA
max.
•
High peak current capability: 300 mA output is possible (at V
IN
≥
V
OUT(S)
+
1.0 V)
*1
Ensures long battery life.
•
Built-in ON/OFF circuit:
70 dB typ. (at 1.0 kHz)
•
High ripple rejection:
•
Built-in overcurrent protector: Overcurrent of output transistor can be restricted.
•
Lead-free, Sn 100%, halogen-free
*2
*1.
Attention should be paid to the power dissipation of the package when the output current is large.
*2.
Refer to “
Product Name Structure”
for details.
•
Output voltage:
•
High-accuracy output voltage:
•
Low dropout voltage:
•
Low current consumption:
Applications
•
Power supply for DVD and CD-ROM drives
•
Power supply for battery-powered devices
•
Power supply for personal communication devices
•
Power supply for note PCs
Packages
•
SOT-89-3
•
SOT-89-5
•
6-Pin HSON(A)
Seiko Instruments Inc.
1
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.0
_00
S-1131 Series
Block Diagrams
(1)
Without shutdown function (Package : SOT-89-3)
*1
VIN
Overcurrent
protector
VOUT
+
−
Reference
voltage circuit
VSS
*1.
Parasitic diode
Figure 1
(2)
With shutdown function (Package : SOT-89-5, 6-Pin HSON(A))
*1
VIN
Overcurrent
protector
VOUT
ON/OFF
ON/OFF
circuit
+
−
Reference
voltage circuit
VSS
*1.
Parasitic diode
Figure 2
2
Seiko Instruments Inc.
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.0
_00
S-1131 Series
Product Name Structure
•
The product types, output voltage and packages for the S-1131 Series can be selected at the user’s
request. Refer to the “1.
Product name”
for the meanings of the characters in the product name, “2.
Package”
regarding the package drawings and “3.
Product name list”
for the full product names.
1. Product name
(1) SOT-89-3, SOT-89-5
S-1131
x
xx
xx
−
xxx
TF
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
Product name (abbreviation)
*2
Package name (abbreviation)
UA: SOT-89-3
UC: SOT-89-5
Output voltage
15 to 55
(e.g., when the output voltage is 1.5 V, it is expressed
as 15.)
Product type
*3
A: ON/OFF pin negative logic
B: ON/OFF pin positive logic
*1.
Refer to the tape specifications at the end of this book.
*2.
Refer to the “Product
name list”.
*3.
Refer to
3. Shutdown pin (ON/OFF pin)
in the “Operation” (Expect SOT-89-3).
Seiko Instruments Inc.
3
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.0
_00
S-1131 Series
(2) 6-Pin HSON(A)
S-1131
x
xx
PD
−
xxx
TF
x
Environmental code
S: Lead-free, halogen-free
G: Lead-free (for details, please contact our sales office)
IC direction in tape specifications
*1
Product name (abbreviation)
*2
Package name (abbreviation)
PD: 6-Pin HSON(A)
Output voltage
15 to 55
(e.g., when the output voltage is 1.5 V, it is expressed
as 15.)
Product type
*3
A: ON/OFF pin negative logic
B: ON/OFF pin positive logic
*1.
Refer to the tape specifications at the end of this book.
*2.
Refer to the “Product
name list”.
*3.
Refer to
3. Shutdown pin (ON/OFF pin)
in the “Operation”.
2. Package
Package Name
SOT-89-3
SOT-89-5
6-Pin HSON(A)
Drawing Code
Tape
UP003-A-C-SD
UP005-A-C-SD
PD006-A-C-SD
Package
UP003-A-P-SD
UP005-A-P-SD
PD006-A-P-SD
Reel
UP003-A-R-SD
UP005-A-R-SD
PD006-A-R-SD
4
Seiko Instruments Inc.
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.0
_00
S-1131 Series
3. Product name list
Table 1
Output voltage
SOT-89-3
SOT-89-5
6-Pin HSON(A)
1.5V±1.0%
S-1131B15UA-N4ATFx
S-1131B15UC-N4ATFx
S-1131B15PD-N4ATFz
1.6V±1.0%
S-1131B16UA-N4BTFx
S-1131B16UC-N4BTFx
S-1131B16PD-N4BTFz
1.7V±1.0%
S-1131B17UA-N4CTFx
S-1131B17UC-N4CTFx
S-1131B17PD-N4CTFz
1.8V±1.0%
S-1131B18UA-N4DTFx
S-1131B18UC-N4DTFx
S-1131B18PD-N4DTFz
1.9V±1.0%
S-1131B19UA-N4ETFx
S-1131B19UC-N4ETFx
S-1131B19PD-N4ETFz
2.0V±1.0%
S-1131B20UA-N4FTFx
S-1131B20UC-N4FTFx
S-1131B20PD-N4FTFz
2.1V±1.0%
S-1131B21UA-N4GTFx
S-1131B21UC-N4GTFx
S-1131B21PD-N4GTFz
2.2V±1.0%
S-1131B22UA-N4HTFx
S-1131B22UC-N4HTFx
S-1131B22PD-N4HTFz
2.3V±1.0%
S-1131B23UA-N4ITFx
S-1131B23UC-N4ITFx
S-1131B23PD-N4ITFz
2.4V±1.0%
S-1131B24UA-N4JTFx
S-1131B24UC-N4JTFx
S-1131B24PD-N4JTFz
2.5V±1.0%
S-1131B25UA-N4KTFx
S-1131B25UC-N4KTFx
S-1131B25PD-N4KTFz
2.6V±1.0%
S-1131B26UA-N4LTFx
S-1131B26UC-N4LTFx
S-1131B26PD-N4LTFz
2.7V±1.0%
S-1131B27UA-N4MTFx
S-1131B27UC-N4MTFx
S-1131B27PD-N4MTFz
2.8V±1.0%
S-1131B28UA-N4NTFx
S-1131B28UC-N4NTFx
S-1131B28PD-N4NTFz
2.9V±1.0%
S-1131B29UA-N4OTFx
S-1131B29UC-N4OTFx
S-1131B29PD-N4OTFz
3.0V±1.0%
S-1131B30UA-N4PTFx
S-1131B30UC-N4PTFx
S-1131B30PD-N4PTFz
3.1V±1.0%
S-1131B31UA-N4QTFx
S-1131B31UC-N4QTFx
S-1131B31PD-N4QTFz
3.2V±1.0%
S-1131B32UA-N4RTFx
S-1131B32UC-N4RTFx
S-1131B32PD-N4RTFz
3.3V±1.0%
S-1131B33UA-N4STFx
S-1131B33UC-N4STFx
S-1131B33PD-N4STFz
3.4V±1.0%
S-1131B34UA-N4TTFx
S-1131B34UC-N4TTFx
S-1131B34PD-N4TTFz
3.5V±1.0%
S-1131B35UA-N4UTFx
S-1131B35UC-N4UTFx
S-1131B35PD-N4UTFz
3.6V±1.0%
S-1131B36UA-N4VTFx
S-1131B36UC-N4VTFx
S-1131B36PD-N4VTFz
3.7V±1.0%
S-1131B37UA-N4WTFx
S-1131B37UC-N4WTFx
S-1131B37PD-N4WTFz
3.8V±1.0%
S-1131B38UA-N4XTFx
S-1131B38UC-N4XTFx
S-1131B38PD-N4XTFz
3.9V±1.0%
S-1131B39UA-N4YTFx
S-1131B39UC-N4YTFx
S-1131B39PD-N4YTFz
4.0V±1.0%
S-1131B40UA-N4ZTFx
S-1131B40UC-N4ZTFx
S-1131B40PD-N4ZTFz
4.1V±1.0%
S-1131B41UA-N5ATFx
S-1131B41UC-N5ATFx
S-1131B41PD-N5ATFz
4.2V±1.0%
S-1131B42UA-N5BTFx
S-1131B42UC-N5BTFx
S-1131B42PD-N5BTFz
4.3V±1.0%
S-1131B43UA-N5CTFx
S-1131B43UC-N5CTFx
S-1131B43PD-N5CTFz
4.4V±1.0%
S-1131B44UA-N5DTFx
S-1131B44UC-N5DTFx
S-1131B44PD-N5DTFz
4.5V±1.0%
S-1131B45UA-N5ETFx
S-1131B45UC-N5ETFx
S-1131B45PD-N5ETFz
4.6V±1.0%
S-1131B46UA-N5FTFx
S-1131B46UC-N5FTFx
S-1131B46PD-N5FTFz
4.7V±1.0%
S-1131B47UA-N5GTFx
S-1131B47UC-N5GTFx
S-1131B47PD-N5GTFz
4.8V±1.0%
S-1131B48UA-N5HTFx
S-1131B48UC-N5HTFx
S-1131B48PD-N5HTFz
4.9V±1.0%
S-1131B49UA-N5ITFx
S-1131B49UC-N5ITFx
S-1131B49PD-N5ITFz
5.0V±1.0%
S-1131B50UA-N5JTFx
S-1131B50UC-N5JTFx
S-1131B50PD-N5JTFz
5.1V±1.0%
S-1131B51UA-N5KTFx
S-1131B51UC-N5KTFx
S-1131B51PD-N5KTFz
5.2V±1.0%
S-1131B52UA-N5LTFx
S-1131B52UC-N5LTFx
S-1131B52PD-N5LTFz
5.3V±1.0%
S-1131B53UA-N5MTFx
S-1131B53UC-N5MTFx
S-1131B53PD-N5MTFz
5.4V±1.0%
S-1131B54UA-N5NTFx
S-1131B54UC-N5NTFx
S-1131B54PD-N5NTFz
5.5V±1.0%
S-1131B55UA-N5OTFx
S-1131B55UC-N5OTFx
S-1131B55PD-N5OTFz
Remark 1.
Please contact the SII marketing department for type A products.
2.
x: G or U
z: G or S
3.
Please select products of environmental code = U for Sn 100%, halogen-free products.
Seiko Instruments Inc.
5
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