Rev.1.0
HIGH OPERATING VOLTAGE
CMOS VOLTAGE REGULATOR
S-812C Series
The S-812C series is a family of high-voltage positive
regulators developed using CMOS technology.
The
maximum operating voltage of 16V makes the S-812C
series best in high-voltage applications. Not only current
consumption is small but also power-off function is
included, the regulator is also suitable in constructing low-
power portable devices. Combination of power-off function
and short-current protection can be selected.
Features
•
Low current consumption
•
Power source for battery-powered devices
Operating current: Typ. 1.0
µA,
Max. 1.8
µA
(3.0 V)
•
Power source for personal communication
•
Output voltage: 2.0 to 6.0 V (0.1 V step)
devices
•
Output voltage accuracy:
±2.0%
•
Power source for home electric/electronic
•
Output current:
appliances
Note1
50mA capable (3.0 V output product, V
IN
=5 V)
Note1
75mA capable (5.0 V output product, V
IN
=7 V)
•
Dropout voltage
Typ. 120 mV (V
OUT
= 5.0 V, I
OUT
= 10 mA)
•
Power-off function: Polarity for power-off switch or removal of the power-off function can be selected.
•
Short-circuit protection: Product with/without short-circuit protection is available.
Short-circuited current : 40 mA typ. for products with protection
•
Packages: SOT-23-5 (Package drawing code : MP005-A)
SOT-89-5 (Package drawing code : UP003-A)
SOT-89-3 (Package drawing code : UP005-A)
TO-92
(Package drawing code : YF003-A)
Note1 Power dissipation of the package should be taken into account when the output current is large.
Applications
Block Diagram
(1) Product without power-off function
VIN
(1)
VOUT
(2) Product with power-off function
VIN
(1)
VOUT
(2)
Short-circuit
protection
(2)
Short-circuit
protection
ON/OFF
Reference
voltage
Reference
voltage
VSS
(1) : Parasitic diode
(2) : In case of a product with short-circuit protection
VSS
(1) : Parasitic diode
(2) : In case of a product with short-circuit protection
Figure 1 Block Diagram
Seiko Instruments Inc.
1
HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR
S-812C Series
Absolute Maximum Ratings
Table 1
Item
Input voltage
Output voltage
Power dissipation
Operating temperature range
Storage temperature range
Symbol
V
IN
V
ON/OFF
V
OUT
P
D
T
opr
T
stg
(Ta=25°C unless otherwise specified)
Absolute Maximum Rating
18
V
SS
-0.3 to 18
V
SS
-0.3 to V
IN
+0.3
250(SOT-23-5),500 (SOT-89-5)
500(SOT-89-3),400(TO-92)
-40 to +85
-40 to +125
Units
V
V
V
mW
°C
°C
Rev.1.0
Note: Although the IC contains protection circuit against static electricity, excessive static electricity
or voltage which exceeds the limit of the protection circuit should not be applied to.
Selection Guide
Product Name
S-812C xx Axx - xxx - T2
IC orientation for taping specifications
Product code
Package code
MC: SOT-23-5
UA: SOT-89-3
Y : TO-92
UC: SOT-89-5
WI: WAFER
Function
A: No short-circuit protection and no power-off function
B: Short-circuit protection and power-off function
ON/OFF pin; Positive logic
Output voltage x 10
Table 2.1 Selection Guide
S-812CxxB series (Short-circuit protection and power-off fuction)
Output Voltage
SOT-23-5
SOT-89-5
−
−
2.0 V ± 2.0%
−
3.0 V ± 2.0%
S-812C30BMC-C4K-T2
−
−
3.3 V ± 2.0%
−
−
3.5 V ± 2.0%
−
−
3.8 V ± 2.0%
−
−
4.0 V ± 2.0%
−
5.0 V ± 2.0%
S-812C50BMC-C5E-T2
Please contact our sales office for products with an output voltage not listed above.
2
Seiko Instruments Inc.
Rev.1.0
HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR
S-812C Series
Table 2.2
S-812CxxA series (No short-circuit protection and no power-off function)
Output voltage
2.0 V± 2.0%
2.1 V± 2.0%
2.2 V± 2.0%
2.3 V± 2.0%
2.4 V± 2.0%
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%
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%
SOT-23-5
S-812C20AMC-C2A-T2
S-812C21AMC-C2B-T2
S-812C22AMC-C2C-T2
S-812C23AMC-C2D-T2
S-812C24AMC-C2E-T2
S-812C25AMC-C2F-T2
S-812C26AMC-C2G-T2
S-812C27AMC-C2H-T2
S-812C28AMC-C2I-T2
S-812C29AMC-C2J-T2
S-812C30AMC-C2K-T2
S-812C31AMC-C2L-T2
S-812C32AMC-C2M-T2
S-812C33AMC-C2N-T2
S-812C34AMC-C2O-T2
S-812C35AMC-C2P-T2
S-812C36AMC-C2Q-T2
S-812C37AMC-C2R-T2
S-812C38AMC-C2S-T2
S-812C39AMC-C2T-T2
S-812C40AMC-C2U-T2
S-812C41AMC-C2V-T2
S-812C42AMC-C2W-T2
S-812C43AMC-C2X-T2
S-812C44AMC-C2Y-T2
S-812C45AMC-C2Z-T2
S-812C46AMC-C3A-T2
S-812C47AMC-C3B-T2
S-812C48AMC-C3C-T2
S-812C49AMC-C3D-T2
S-812C50AMC-C3E-T2
S-812C51AMC-C3F-T2
S-812C52AMC-C3G-T2
S-812C53AMC-C3H-T2
S-812C54AMC-C3I-T2
S-812C55AMC-C3J-T2
S-812C56AMC-C3K-T2
SOT-89-3
S-812C20AUA-C2A-T2
S-812C21AUA-C2B-T2
S-812C22AUA-C2C-T2
S-812C23AUA-C2D-T2
S-812C24AUA-C2E-T2
S-812C25AUA-C2F-T2
S-812C26AUA-C2G-T2
S-812C27AUA-C2H-T2
S-812C28AUA-C2I-T2
S-812C29AUA-C2J-T2
S-812C30UA-C2K-T2
S-812C31AUA-C2L-T2
S-812C32AUA-C2M-T2
S-812C33AUA-C2N-T2
S-812C34AUA-C2O-T2
S-812C35AUA-C2P-T2
S-812C36AUA-C2Q-T2
S-812C37AUA-C2R-T2
S-812C38AUA-C2S-T2
S-812C39AUA-C2T-T2
S-812C40AUA-C2U-T2
S-812C41AUA-C2V-T2
S-812C42AUA-C2W-T2
S-812C43AUA-C2X-T2
S-812C44AUA-C2Y-T2
S-812C45AUA-C2Z-T2
S-812C46AUA-C3A-T2
S-812C47AUA-C3B-T2
S-812C48AUA-C3C-T2
S-812C49AUA-C3D-T2
S-812C50AUA-C3E-T2
S-812C51AUA-C3F-T2
S-812C52AUA-C3G-T2
S-812C53AUA-C3H-T2
S-812C54AUA-C3I-T2
S-812C55AUA-C3J-T2
S-812C56AUA-C3K-T2
S-812C57AUA-C3L-T2
S-812C58AUA-C3M-T2
S-812C59AUA-C3N-T2
TO-92*
S-812C20AY-X
S-812C21AY-X
S-812C22AY-X
S-812C23AY-X
S-812C24AY-X
S-812C25AY-X
S-812C26AY-X
S-812C27AY-X
S-812C28AY-X
S-812C29AY-X
S-812C30AY-X
S-812C31AY-X
S-812C32AY-X
S-812C33AY-X
S-812C34AY-X
S-812C35AY-X
S-812C36AY-X
S-812C37AY-X
S-812C38AY-X
S-812C39AY-X
S-812C40AY-X
S-812C41AY-X
S-812C42AY-X
S-812C43AY-X
S-812C44AY-X
S-812C45AY-X
S-812C46AY-X
S-812C47AY-X
S-812C48AY-X
S-812C49AY-X
S-812C50AY-X
S-812C51AY-X
S-812C52AY-X
S-812C53AY-X
S-812C54AY-X
S-812C55AY-X
S-812C56AY-X
S-812C57AY-X
S-812C58AY-X
S-812C59AY-X
SOT-89-5
6.0 V± 2.0%
S-812C60AUA-C3O-T2
S-812C60AY-X
*: X changes according to the packing form in TO-92. Standard forms are B; Bulk and Z; Zigzag (tape and ammo).
If tape and reel (T) is needed, please contact SII sales office.
Seiko Instruments Inc.
3
HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR
S-812C Series
Pin Configuration
For details of package, refer to the attached drawing.
Rev.1.0
Table 3 Pin Assignment
SOT-23-5
Top view
5
4
Pin No.
1
2
3
4
5
Symbol
VSS
VIN
VOUT
N.C.
N.C.
(1)
Description
GND pin
Input voltage pin
Output voltage pin
ON/OFF
ON/OFF pin
(1)
1
2
3
(1)
Figure 2
N.C. pin is electrically open. N.C. pin can be connected to
VIN or VSS. The ON/OFF pin becomes N.C. pin, when the
power-off function is removed.
Table 4 Pin Assignment
SOT-89-5
Top view
5
4
Pin No.
1
2
3
4
5
Symbol
VOUT
VIN
VSS
N.C.
N.C.
(1)
(1)
Description
Output voltage pin
Input voltage pin
GND pin
ON/OFF. ON/OFF pin
1
2
3
(1)
Figure 3
N.C. pin is electrically open. N.C. pin can be connected to
VIN or VSS. The ON/OFF pin becomes N.C. pin, when the
power-off function is removed.
Table 5 Pin Assignment
SOT-89-3
Top view
Pin No.
1
2
3
Symbol
VSS
VIN
VOUT
Description
GND pin
Input voltage pin
Output voltage pin
1
2
3
Figure 4
Table 6 Pin Assignment
Pin No.
1
Symbol
VSS
VIN
VOUT
Description
GND pin
Input voltage pin
Output voltage pin
TO-92
Bottom view
2
3
1
2
3
Figure 5
4
Seiko Instruments Inc.
Rev.1.0
Electrical Characteristics
1. S-812C Series
HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR
S-812C Series
Table 7 Electrical Characteristics
Parameter
Symbol
1)
2)
(Ta=25°C unless otherwise specified)
Min.
Typ.
Max.
V
OUT
(S)× V
OUT
(S) V
OUT
(S)
×
1.02
0.98
−
−
30
−
−
50
−
−
65
−
−
75
0.46
0.95
−
0.32
0.68
−
0.23
0.41
−
0.19
0.35
−
0.16
0.30
−
0.14
0.27
−
0.12
0.25
−
0.11
0.23
−
−
5
20
−
−
−
−
−
5
6
10
13
17
±100
−
0.9
1.0
1.2
1.5
−
0.1
−
−
−
−
20
30
45
65
80
−
1.6
1.8
2.1
2.5
16
0.5
−
0.4
0.1
-0.1
Test
Units circuits
V
1
mA
mA
mA
mA
V
V
V
V
V
V
V
V
mV
mV
mV
mV
mV
mV
ppm
/°C
µA
µA
µA
µA
V
µA
V
V
µA
µA
3
3
3
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
1
2
4
4
4
4
Conditions
V
IN
=V
OUT
(S)+2V, I
OUT
=10mA
Output voltage
Output current
V
OUT
(E)
I
OUT
V
OUT
(S)+
2V2.0V
≤
V
OUT
(S)
≤
2.9V
≤
V
IN
≤16V
3.0V
≤
V
OUT
(S)
≤
3.9V
4.0V
≤
V
OUT
(S)
≤
4.9V
5.0V
≤
V
OUT
(S)
≤
5.9V
3)
Dropout voltage
Vdrop
I
OUT
=
2.0V
≤
V
OUT
(S)
≤
2.4V
10mA
2.5V
≤
V
OUT
(S)
≤
2.9V
3.0V
≤
V
OUT
(S)
≤
3.4V
3.5V
≤
V
OUT
(S)
≤
3.9V
4.0V
≤
V
OUT
(S)
≤
4.4V
4.5V
≤
V
OUT
(S)
≤
4.9V
5.0V
≤
V
OUT
(S)
≤
5.4V
5.5V
≤
V
OUT
(S)
≤
6.0V
∆
V
OUT
11
V
OUT
(S) + 1 V
≤
V
IN
≤
16 V,
Line regulation 1
I
OUT
= 1mA
∆
V
OUT
21
V
OUT
(S) + 1 V
≤
V
IN
≤
16 V,
Line regulation 2
I
OUT
= 1µA
∆
V
OUT
31
V
IN
=
2.0V
≤
V
OUT
(S)
≤
2.9V,
Load regulation
V
OUT
(S)+ 2 V 1µA
≤
I
OUT
≤
20mA
3.0V
≤
V
OUT
(S)
≤
3.9V,
1µA
≤
I
OUT
≤
30mA
4.0V
≤
V
OUT
(S)
≤
4.9V,
1µA
≤
I
OUT
≤
40mA
5.0V
≤
V
OUT
(S)
≤
5.9V,
1µA
≤
I
OUT
≤
50mA
∆V
OUT
1
V
IN
= V
OUT
(S) + 1 V, I
OUT
= 10mA
Output voltage temperature
∆Ta •
V
OUT
-40°C
≤
Ta
≤
85°C
4)
coefficient
Current consumption
I
SS
V
IN
=
2.0V
≤
V
OUT
(S)
≤
2.7V
V
OUT
(S)+2V, 2.8V
≤
V
OUT
(S)
≤
3.7V
no load
3.8V
≤
V
OUT
(S)
≤
5.1V
5.2V
≤
V
OUT
(S)
≤
6.0V
Input voltage
V
IN
Applied to products with Power-off Function
Current consumption at power-
I
SS
2
V
IN
= V
OUT
(S) + 2V,
off
V
ON/OFF
= 0V, no load
ON/OFF pin
V
SH
V
IN
= V
OUT
(S) + 2V, R
L
= 1kχ,
Input voltage for high level
judged by V
OUT
output level
ON/OFF pin
V
SL
V
IN
= V
OUT
(S) + 2V, R
L
= 1kΩ,
Input voltage for low level
judged by V
OUT
output level
ON/OFF pin
I
SH
V
IN
=V
OUT
(S) + 2V,
Input current at high level
V
ON/OFF
= 7V
ON/OFF pin
I
SL
V
IN
=V
OUT
(S) + 2V,
Input current at low level
V
ON/OFF
= 0V
Applied to products with Short-circuit Protection
Short-circuit current
I
OS
V
IN
= V
OUT
(S) + 2 V,
VOUT pin = 0 V
1)
2)
3)
4)
−
−
2.0
−
−
−
−
40
−
mA
3
V
OUT
(S)=Specified output voltage
V
OUT
(E)=Effective output voltage, i.e., the output voltage when fixing I
OUT
(=10 mA) and inputting V
OUT
(S)+2.0 V.
Output current at which output voltage becomes 95% of V
OUT
(E) after gradually increasing output current.
Vdrop = V
IN
1-(V
OUT
(E) × 0.98), where V
IN
1 is the Input voltage at which output voltage becomes 98% of V
OUT
(E) after
gradually decreasing input voltage.
Temperature change ratio for the output voltage [mV/°C] is calculated using the following equation.
∆
V
OUT
∆
V
OUT
[
mV/
°
C
]
=
V
OUT
(S)
[
V
]
× ∆
Ta
•
V
OUT
[
ppm/
°
C
]
÷
1000
∆
Ta
Temperature change ratio for output voltage
Specified output voltage
Output voltage temperature coefficient
Seiko Instruments Inc.
5
Microcontroller MCU
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