S-816 Series
www.sii-ic.com
© Seiko Instruments Inc., 1996-2010
EXTERNAL TRANSISTOR TYPE
CMOS VOLTAGE REGULATOR
Rev.6.0
_00
The S-816 Series consists of external transistor type positive voltage regulators, which have been developed
using the CMOS process. These voltage regulators incorporate an overcurrent protection, and shutdown
circuit. A low drop-out type regulator with an output current ranging from several hundreds of mA to 1 A can be
configured with the PNP transistor driven by this IC.
Despite the features of the S-816, which is low current consumption, the improvement in its transient response
characteristics of the IC with a newly deviced phase compensation circuit made it possible to employ the
products of the S-816 Series even in applications where heavy input variation or load variation is experienced.
The S-816 Series regulators serve as ideal power supply units for portable devices when coupled with the SOT-
23-5 minipackage, providing numerous outstanding features, including low current consumption. Since this
series can accommodate an input voltage of up to 16 V, it is also suitable when operating via an AC adapter.
Features
(1) Low current consumption
•
Operation mode:
30
μA
typ., 40
μA
max.
•
Shutdown mode:
1
μA
max.
(2) Input voltage range:
16 V max.
(3) Output voltage accuracy:
±
2.0%
(4) Output voltage range:
Selectable between 2.5 V and 6.0 V in steps of 0.1 V.
(5) With shutdown curcuit.
(6) A built-in current source (10
μA)
eliminates the need of a base-emitter resistance.
(7) With overcurrent (base current) protection function.
(8) Lead-free, Sn 100%, halogen-free
*1
*1.
Refer to “
Product Name Structure”
for details.
Applications
•
Power supplies for on-board such as battery devices for portable telephones, electronic notebooks, PDAs.
•
Constant voltage power supplies for cameras, video equipment and portable communications equipment.
•
Power Supplies for CPUs.
•
Post-Regulators for Switching Regulators.
•
Main Regulators in Multiple-Power Supply Systems.
Package
•
SOT-23-5
Seiko Instruments Inc.
1
EXTERNAL TRANSISTOR TYPE CMOS VOLTAGE REGULATOR
S-816 Series
Rev.6.0
_00
Block Diagram
VIN
EXT
VOUT
Current Source
Pull-Up
Overcurrent
Protection
Circuit
+
−
+
V
REF
ON/ OFF
−
Error
Amplifier
+
−
Sink
Driver
VSS
Remark 1.
To ensure you power cutoff of the external transistor when the device is powered down, the
EXT output is pulled up to V
IN
by a pull-up resistance (approx. 0.5 MΩ) inside the IC.
2.
The diode inside the IC is a parasitic diode.
Figure 1
2
Seiko Instruments Inc.
Rev.6.0
_00
EXTERNAL TRANSISTOR TYPE CMOS VOLTAGE REGULATOR
S-816 Series
Product Name Structure
1. Product Name
S-816
xx
A
MC
-
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
Product name (abbreviation)
Package name (abbreviation)
MC : SOT-23-5
Output voltage
×
10
25 to 60 (2.5 V to 6.0 V)
*1.
Refer to the tape specifications.
2. Package
Package Name
SOT-23-5
3. Product Name List
Table 1
Output Voltage
(V)
4.3 V
±
2.0%
4.4 V
±
2.0%
4.5 V
±
2.0%
4.6 V
±
2.0%
4.7 V
±
2.0%
4.8 V
±
2.0%
4.9 V
±
2.0%
5.0 V
±
2.0%
5.1 V
±
2.0%
5.2 V
±
2.0%
5.3 V
±
2.0%
5.4 V
±
2.0%
5.5 V
±
2.0%
5.6 V
±
2.0%
5.7 V
±
2.0%
5.8 V
±
2.0%
5.9 V
±
2.0%
6.0 V
±
2.0%
Drawing Code
Tape
MP005-A-C-SD
Package
MP005-A-P-SD
Reel
MP005-A-R-SD
Output Voltage
(V)
2.5 V
±
2.0%
2.6 V
±
2.0%
2.7 V
±
2.0%
2.8 V
±
2.0%
2.9 V
±
2.0%
3.0 V
±
2.0%
3.1 V
±
2.0%
3.2 V
±
2.0%
3.3 V
±
2.0%
3.4 V
±
2.0%
3.5 V
±
2.0%
3.6 V
±
2.0%
3.7 V
±
2.0%
3.8 V
±
2.0%
3.9 V
±
2.0%
4.0 V
±
2.0%
4.1 V
±
2.0%
4.2 V
±
2.0%
Product Name
S-816A25AMC-BAAT2x
S-816A26AMC-BABT2x
S-816A27AMC-BACT2x
S-816A28AMC-BADT2x
S-816A29AMC-BAET2x
S-816A30AMC-BAFT2x
S-816A31AMC-BAGT2x
S-816A32AMC-BAHT2x
S-816A33AMC-BAIT2x
S-816A34AMC-BAJT2x
S-816A35AMC-BAKT2x
S-816A36AMC-BALT2x
S-816A37AMC-BAMT2x
S-816A38AMC-BANT2x
S-816A39AMC-BAOT2x
S-816A40AMC-BAPT2x
S-816A41AMC-BAQT2x
S-816A42AMC-BART2x
Product Name
S-816A43AMC-BAST2x
S-816A44AMC-BATT2x
S-816A45AMC-BAUT2x
S-816A46AMC-BAVT2x
S-816A47AMC-BAWT2x
S-816A48AMC-BAXT2x
S-816A49AMC-BAYT2x
S-816A50AMC-BAZT2x
S-816A51AMC-BBAT2x
S-816A52AMC-BBBT2x
S-816A53AMC-BBCT2x
S-816A54AMC-BBDT2x
S-816A55AMC-BBET2x
S-816A56AMC-BBFT2x
S-816A57AMC-BBGT2x
S-816A58AMC-BBHT2x
S-816A59AMC-BBIT2x
S-816A60AMC-BBJT2x
Remark 1.
x: G or U
2.
Please select products of environmental code = U for Sn 100%, halogen-free products.
Seiko Instruments Inc.
3
EXTERNAL TRANSISTOR TYPE CMOS VOLTAGE REGULATOR
S-816 Series
Pin Configuration
SOT-23-5
Top view
Rev.6.0
_00
Table 2
5
4
Pin No.
1
2
3
4
5
Symbol
EXT
VSS
ON/ OFF
VIN
VOUT
Description
Output Pin for Base-Current Control
GND Pin
Shutdown Pin ("H" active)
IC Power Supply Pin
Output Voltage Monitoring Pin
1
2
3
Figure 2
4
Seiko Instruments Inc.
Rev.6.0
_00
EXTERNAL TRANSISTOR TYPE CMOS VOLTAGE REGULATOR
S-816 Series
Absolute Maximum Ratings
Table 3
Item
VIN Pin Voltage
VOUT Pin Voltage
ON/ OFF
Pin Voltage
EXT Pin Voltage
EXT Pin Current
Power Dissipation
Symbol
V
IN
V
OUT
V
ON/OFF
V
EXT
I
EXT
P
D
T
opr
(Ta=25°C unless otherwise specified)
Absolute Maximum Ratings
Unit
V
V
SS
−0.3
to V
SS
+18
V
V
SS
−0.3
to V
SS
+18
V
SS
−0.3
to V
SS
+18
V
SS
−0.3
to V
IN
+0.3
50
250 (When not mounted on board)
600
*1
−40
to
+85
V
V
mA
mW
mW
Operating Ambient Temperature
Storage Temperature
T
stg
*1. When mounted on board
[Mounted on board]
(1) Board size : 114.3 mm
×
76.2 mm
×
t1.6 mm
(2) Board name : JEDEC STANDARD51-7
−
40 to
+
125
°
C
°
C
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.
(1) When mounted on board
Power Dissipation (P
D
) [mW]
700
600
500
400
300
200
100
0
0
100
150
50
Ambient Temperature (Ta) [°C]
(2) When not mounted on board
Power Dissipation (P
D
) [mW]
300
250
200
150
100
50
0
0
100
150
50
Ambient Temperature (Ta) [°C]
Figure 3 Power Dissipation of Package
Seiko Instruments Inc.
5
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