S-1170 Series
www.sii-ic.com
© Seiko Instruments Inc., 2003-2010
HIGH RIPPLE-REJECTION AND LOW DROPOUT
HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.0
_00
The S-1170 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, a built-in
overcurrent protector prevents the load current from exceeding the current capacitance of the output transistor,
and a built-in thermal shutdown circuit prevents damage caused by the heat. An ON/OFF circuit ensures a
long battery life. Compared with the voltage regulators using the conventional CMOS process, a larger variety
of capacitors are available, including small ceramic capacitors. Small SOT-89-5 and 6-Pin HSON(A) packages
realize high-density mounting.
Features
•
Output voltage:
•
High-accuracy output voltage:
•
Low dropout voltage:
•
Low current consumption:
1.5 V to 5.5 V, selectable in 0.1 V steps.
±1.0%
120 mV typ. (3.0 V output product, I
OUT
=
300 mA)
During operation: 80
μA
typ., 160
μA
max.
During shutdown: 0.1
μA
typ., 1.0
μA
max.
•
High current capability:
800 mA output is possible (at V
IN
≥
V
OUT(S)
+
1.0 V)
*1
Ensures long battery life.
•
Built-in ON/OFF circuit:
•
Low ESR capacitor can be used: A ceramic capacitor of 4.7
μF
or more can be used for the output
capacitor.
70 dB typ. (at 1.0 kHz)
•
High ripple rejection:
Overcurrent of output transistor can be restricted.
•
Built-in overcurrent protector:
•
Built-in thermal shutdown circuit: Damage caused by heat can be prevented.
•
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.
Applications
•
Power supply for DVD and CD-ROM drives
•
Power supply for battery-powered devices
•
Power supply for personal communication device
•
Power supply for note PCs
Packages
•
SOT-89-5
•
6-Pin HSON(A)
Seiko Instruments Inc.
1
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.0
_00
S-1170 Series
Block Diagram
*1
VIN
Overcurrent
protector
Thermal shutdown circuit
+
−
VOUT
ON/OFF
ON/OFF
circuit
Reference
voltage circuit
VSS
*1.
Parasitic diode
Figure 1
2
Seiko Instruments Inc.
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.0
_00
S-1170 Series
Product Name Structure
•
The product types, output voltage, and package types for the S-1170 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-89-5
S-1170
x
xx
UC
−
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)
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”.
Seiko Instruments Inc.
3
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.0
_00
S-1170 Series
(2) 6-Pin HSON(A)
S-1170
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-89-5
6-Pin HSON(A)
Drawing Code
Tape
UP005-A-C-SD
PD006-A-C-SD
Package
UP005-A-P-SD
PD006-A-P-SD
Reel
UP005-A-R-SD
PD006-A-R-SD
4
Seiko Instruments Inc.
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.0
_00
S-1170 Series
3. Product name list
Table 1
Output Voltage
SOT-89-5
6-Pin HSON(A)
S-1170B15UC-OTATFx
S-1170B15PD-OTATFz
1.5 V
±1.0%
S-1170B16UC-OTBTFx
S-1170B16PD-OTBTFz
1.6 V
±1.0%
S-1170B17UC-OTCTFx
S-1170B17PD-OTCTFz
1.7 V
±1.0%
S-1170B18UC-OTDTFx
S-1170B18PD-OTDTFz
1.8 V
±1.0%
S-1170B19UC-OTETFx
S-1170B19PD-OTETFz
1.9 V
±1.0%
S-1170B20UC-OTFTFx
S-1170B20PD-OTFTFz
2.0 V
±1.0%
S-1170B21UC-OTGTFx
S-1170B21PD-OTGTFz
2.1 V
±1.0%
S-1170B22UC-OTHTFx
S-1170B22PD-OTHTFz
2.2 V
±1.0%
S-1170B23UC-OTITFx
S-1170B23PD-OTITFz
2.3 V
±1.0%
S-1170B24UC-OTJTFx
S-1170B24PD-OTJTFz
2.4 V
±1.0%
S-1170B25UC-OTKTFx
S-1170B25PD-OTKTFz
2.5 V
±1.0%
S-1170B26UC-OTLTFx
S-1170B26PD-OTLTFz
2.6 V
±1.0%
S-1170B27UC-OTMTFx
S-1170B27PD-OTMTFz
2.7 V
±1.0%
S-1170B28UC-OTNTFx
S-1170B28PD-OTNTFz
2.8 V
±1.0%
S-1170B29UC-OTOTFx
S-1170B29PD-OTOTFz
2.9 V
±1.0%
S-1170B30UC-OTPTFx
S-1170B30PD-OTPTFz
3.0 V
±1.0%
S-1170B31UC-OTQTFx
S-1170B31PD-OTQTFz
3.1 V
±1.0%
S-1170B32UC-OTRTFx
S-1170B32PD-OTRTFz
3.2 V
±1.0%
S-1170B33UC-OTSTFx
S-1170B33PD-OTSTFz
3.3 V
±1.0%
S-1170B34UC-OTTTFx
S-1170B34PD-OTTTFz
3.4 V
±1.0%
S-1170B35UC-OTUTFx
S-1170B35PD-OTUTFz
3.5 V
±1.0%
S-1170B36UC-OTVTFx
S-1170B36PD-OTVTFz
3.6 V
±1.0%
S-1170B37UC-OTWTFx
S-1170B37PD-OTWTFz
3.7 V
±1.0%
S-1170B38UC-OTXTFx
S-1170B38PD-OTXTFz
3.8 V
±1.0%
S-1170B39UC-OTYTFx
S-1170B39PD-OTYTFz
3.9 V
±1.0%
S-1170B40UC-OTZTFx
S-1170B40PD-OTZTFz
4.0 V
±1.0%
S-1170B41UC-OUATFx
S-1170B41PD-OUATFz
4.1 V
±1.0%
S-1170B42UC-OUBTFx
S-1170B42PD-OUBTFz
4.2 V
±1.0%
S-1170B43UC-OUCTFx
S-1170B43PD-OUCTFz
4.3 V
±1.0%
S-1170B44UC-OUDTFx
S-1170B44PD-OUDTFz
4.4 V
±1.0%
S-1170B45UC-OUETFx
S-1170B45PD-OUETFz
4.5 V
±1.0%
S-1170B46UC-OUFTFx
S-1170B46PD-OUFTFz
4.6 V
±1.0%
S-1170B47UC-OUGTFx
S-1170B47PD-OUGTFz
4.7 V
±1.0%
S-1170B48UC-OUHTFx
S-1170B48PD-OUHTFz
4.8 V
±1.0%
S-1170B49UC-OUITFx
S-1170B49PD-OUITFz
4.9 V
±1.0%
S-1170B50UC-OUJTFx
S-1170B50PD-OUJTFz
5.0 V
±1.0%
S-1170B51UC-OUKTFx
S-1170B51PD-OUKTFz
5.1 V
±1.0%
S-1170B52UC-OULTFx
S-1170B52PD-OULTFz
5.2 V
±1.0%
S-1170B53UC-OUMTFx
S-1170B53PD-OUMTFz
5.3 V
±1.0%
S-1170B54UC-OUNTFx
S-1170B54PD-OUNTFz
5.4 V
±1.0%
S-1170B55UC-OUOTFx
S-1170B55PD-OUOTFz
5.5 V
±1.0%
Remark 1.
Please contact the SII marketing department for products with an output voltage other
than those specified above or 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
