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Электронный компонент: S-1131B18UC-N4D-TF

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Rev.2.3
_00
HIGH RIPPLE-REJECTION LOW DROPOUT
MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1131 Series
Seiko Instruments Inc.
1
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
Output voltage:
1.5 V to 5.5 V, selectable in 0.1 V steps.
High-accuracy output voltage: 1.0%
Low dropout voltage:
250 mV typ. (3.0 V output product, I
OUT
= 100 mA)
Low current consumption:
During operation: 35
A typ., 65 A max.
During shutdown: 0.1
A typ., 1.0 A max.
High peak current capability:
300 mA output is possible (@ V
IN
V
OUT(S)
+ 1.0 V)
*1
Built-in ON/OFF circuit:
Ensures long battery life.
High ripple rejection:
70 dB typ. (@ 1.0 kHz)
Built-in overcurrent protector: Overcurrent of output transistor can be restricted.
Small package:
SOT-89-3, SOT-89-5, 6-Pin HSON(A)
*1. Attention should be paid to the power dissipation of the package when the output current is large.
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
(Package drawing code: UP003-A)
SOT-89-5
(Package drawing code: UP005-A)
6-Pin HSON(A)
(Package drawing code: PD006-A)
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1131 Series
Rev.2.3
_00
2
Seiko Instruments Inc.
Block Diagram
(1) Without shutdown function (Package : SOT-89-3)
Reference
voltage circuit
*1. Parasitic diode
*1
+
-
VIN
VSS
Overcurrent
protector
VOUT
Figure 1

(2) With shutdown function (Package : SOT-89-5, 6-Pin HSON(A))
Reference
voltage circuit
ON/OFF
*1. Parasitic diode
*1
ON/OFF
circuit
+
-
VIN
VSS
Overcurrent
protector
VOUT
Figure 2
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.3
_00
S-1131 Series
Seiko Instruments Inc.
3
Product Code Structure
The product types and output voltage for the S-1131 Series can be selected at the user's request. Refer
to the "Product name" for the meanings of the characters in the product name and "Product name list" for
the full product names.
1. Product name
S-1131 x xx xx xxx TF
IC direction in tape specifications
*1
Product name (abbreviation)
*2
Package name (abbreviation)
UA:
SOT-89-3
UC:
SOT-89-5
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 taping specifications at the end of this book.
*2. Refer to the product name list.
*3. Refer to 3. Shutdown pin (ON/OFF pin) under the Operation (Expect SOT-89-3).
2. Product name list
Table 1
Output Voltage
SOT-89-3 SOT-89-5
6-Pin
HSON(A)
1.5 V 1.0%
S-1131B15UA-N4A-TF
S-1131B15UC-N4A-TF
S-1131B15PD-N4A-TF
1.8 V 1.0%
S-1131B18UC-N4D-TF
S-1131B18PD-N4D-TF
2.5 V 1.0%
S-1131B25UA-N4K-TF
S-1131B25UC-N4K-TF
S-1131B25PD-N4K-TF
2.7 V 1.0%
S-1131B27UC-N4M-TF
S-1131B27PD-N4M-TF
3.0 V 1.0%
S-1131B30UA-N4P-TF
S-1131B30UC-N4P-TF
S-1131B30PD-N4P-TF
3.3 V 1.0%
S-1131B33UA-N4S-TF
S-1131B33UC-N4S-TF
S-1131B33PD-N4S-TF
5.0 V 1.0%
S-1131B50UA-N5J-TF
S-1131B50UC-N5J-TF
S-1131B50PD-N5J-TF
Remark Please contact the SII marketing department for products with an output voltage other than
those specified above or type A products.
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1131 Series
Rev.2.3
_00
4
Seiko Instruments Inc.
Pin Configuration
Table 2
Pin
No.
Symbol
Description
1
VOUT
Output voltage pin
2
VSS
GND
pin
3
VIN
Input voltage pin
1 3
2
SOT-89-3
Top view
Figure 3
Table 3
Pin
No.
Symbol
Description
1
VOUT
Output voltage pin
2
VSS
GND
pin
3
NC
*1
No connection
4
ON/OFF
Shutdown
pin
5
VIN
Input voltage pin

*1. The NC pin is electrically open.
The NC pin can be connected to VIN or VSS.
5 4
1 3
2
SOT-89-5
Top view
Figure 4
Table 4
Pin
No.
Symbol
Description
1
VOUT
Output voltage pin
2
VSS
GND
pin
3
NC
*1
No connection
4
NC
*1
No connection
5
ON/OFF
Shutdown
pin
6
VIN
Input voltage pin

*1. The NC pin is electrically open.
The NC pin can be connected to VIN or VSS.
3
2
1
6-Pin HSON(A)
Top view
4
5
6
Figure 5
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.3
_00
S-1131 Series
Seiko Instruments Inc.
5
Absolute Maximum Ratings
Table 5
(Ta
= 25C unless otherwise specified)
Item
Symbol
Absolute Maximum Rating
Unit
Input voltage
V
IN
V
SS
- 0.3 to V
SS
+ 7
V
V
ON/OFF
V
SS
- 0.3 to V
IN
+ 0.3
Output voltage
V
OUT
V
SS
- 0.3 to V
IN
+ 0.3
Power dissipation
SOT-89-3
500
mW
SOT-89-5
500
P
D
6-Pin HSON(A)
500
Operating ambient temperature
T
opr
-40 to +85
C
Storage ambient temperature
T
stg
-40 to +125
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.