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S-1222B/D Series
www.ablicinc.com
© ABLIC Inc., 2017
28 V INPUT, 200 mA
VOLTAGE REGULATOR
Rev.2.0_01
The S-1222B/D Series, developed by using high-withstand voltage CMOS process technology, is a positive voltage regulator
with a high-withstand voltage, low current consumption and high-accuracy output voltage, and has a built-in ON / OFF
circuit.
The S-1222B/D Series operates at the maximum operation voltage of 28 V and a low current consumption of 6.5 A typ.,
and has a built-in low on-resistance output transistor which provides a very small dropout voltage and a large output current.
Also, a built-in overcurrent protection circuit to limit overcurrent of the output transistor and a built-in thermal shutdown circuit
to limit heat are included.
Features
Output voltage:
Input voltage:
Output voltage accuracy:
Current consumption:
Output current:
Input capacitor:
Output capacitor:
Built-in overcurrent protection circuit:
Built-in thermal shutdown circuit:
Built-in ON / OFF circuit:
Built-in discharge shunt circuit:
Operation temperature range:
Lead-free, Sn 100%, halogen-free
2.3 V to 12.0 V, selectable in 0.1 V step
3.0 V to 28 V
1.0% (Ta = 25C)
During operation: 6.5 A typ. (Ta = 25C)
During power-off: 0.1 A typ. (Ta = 25C)
Possible to output 200 mA (at VIN VOUT(S) 2.0 V)*1
A ceramic capacitor can be used. (1.0 F or more)
A ceramic capacitor can be used. (1.0 F to 100 F)
Limits overcurrent of output transistor.
Detection temperature 165C typ.
Ensures long battery life.
Discharges the electric charge of the output capacitor during power-off.
(RLOW = 70 ktyp.)
Ta = 40°C to 85°C
*1. Please make sure that the loss of the IC will not exceed the power dissipation when the output current is large.
Applications
Constant-voltage power supply for industrial equipment
Constant-voltage power supply for home electric appliance
Constant-voltage power supply for smartcard
Packages
TO-252-5S(A)
HSOP-8A
HSOP-6
SOT-89-5
HTMSOP-8
SOT-23-5
DFN-6(1518)A
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28 V INPUT, 200 mA VOLTAGE REGULATOR
S-1222B/D Series
Block Diagram
*1
VIN
Overcurrent protection
circuit
Thermal shutdown circuit
ON / OFF
*2
ON / OFF circuit


Reference
voltage circuit
VSS
*1. Parasitic diode
*2. The ON / OFF circuit controls the internal circuit and the output transistor.
Figure 1
*1
Rev.2.0_01
VOUT
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Rev.2.0_01
28 V INPUT, 200 mA VOLTAGE REGULATOR
S-1222B/D Series
Product Name Structure
Users can select the output voltage and package type for the S-1222B/D Series. Refer to "1. Product name" regarding
the contents of product name, "2. Function list of product types" regarding the product type, "3. Packages"
regarding the package drawings and "4. Product name list" for details of product names.
1. Product name
1. 1 TO-252-5S(A), HSOP-8A, HSOP-6, SOT-89-5, HTMSOP-8, SOT-23-5
S-1222 x xx - xxxx U
Environmental code
U: Lead-free (Sn 100%), halogen-free
Package abbreviation and IC packing specifications*1
V5T2: TO-252-5S(A), Tape
E8T1: HSOP-8A, Tape
E6T1: HSOP-6, Tape
U5T1: SOT-89-5, Tape
S8T1: HTMSOP-8, Tape
M5T1: SOT-23-5, Tape
Set output voltage
25 to C0
(e.g., when the set output voltage is 2.5 V, it is expressed as 25.
when the set output voltage is 10.0 V, it is expressed as A0.
when the set output voltage is 11.0 V, it is expressed as B0.
when the set output voltage is 12.0 V, it is expressed as C0.)
Product type*2
B, D
*1. Refer to the tape drawing.
*2. Refer to "2. Function list of product types" and "3. ON / OFF pin" in "Operation".
1. 2 DFN-6(1518)A
S-1222 x xx - A6T6 S
Environmental code
S: Lead-free, halogen-free
Package abbreviation and IC packing specifications*1
A6T6: DFN-6(1518)A, Tape
Set output voltage
23 to C0
(e.g., when the set output voltage is 2.3 V, it is expressed as 23.
when the set output voltage is 10.0 V, it is expressed as A0.
when the set output voltage is 11.0 V, it is expressed as B0.
when the set output voltage is 12.0 V, it is expressed as C0.)
Product type*2
B, D
*1. Refer to the tape drawing.
*2. Refer to "2. Function list of product types" and "3. ON / OFF pin" in "Operation".
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28 V INPUT, 200 mA VOLTAGE REGULATOR
S-1222B/D Series
Rev.2.0_01
2. Function list of product types
Product Type
B
D
ON / OFF Logic
Active "H"
Active "H"
Table 1
ON / OFF Pin Input Voltage "H"
1.5 V min.
2.0 V min.
ON / OFF Pin Input Voltage "L"
0.25 V max.
0.8 V max.
3. Packages
Package Name
TO-252-5S(A)
HSOP-8A
HSOP-6
SOT-89-5
HTMSOP-8
SOT-23-5
DFN-6(1518)A
Dimension
VA005-A-P-SD
FH008-A-P-SD
FH006-A-P-SD
UP005-A-P-SD
FP008-A-P-SD
MP005-A-P-SD
PX006-A-P-SD
Table 2 Package Drawing Codes
Tape
Reel
VA005-A-C-SD
VA005-A-R-SD
FH008-A-C-SD
FH008-A-R-SD
FH006-A-C-SD
FH006-A-R-S1
UP005-A-C-SD
UP005-A-R-SD
FP008-A-C-SD
FP008-A-R-SD
MP005-A-C-SD
MP005-A-R-SD
PX006-A-C-SD
PX006-A-R-SD
Land
VA005-A-L-SD
FH008-A-L-SD
FH006-A-L-SD
FP008-A-L-SD
PX006-A-L-SD
4. Product name list
4. 1 S-1222B/D Series B type
ON / OFF logic:
Active "H"
ON / OFF pin input voltage "H" (VSH) = 1.5 V min., ON / OFF pin input voltage "L" (VSL) = 0.25 V max.
Table 3
Output Voltage TO-252-5S(A)
HSOP-8A
HSOP-6
SOT-89-5
HTMSOP-8
SOT-23-5
DFN-6(1518)A
2.3 V 1.0%





 S-1222B23-A6T6S
2.4 V 1.0%





 S-1222B24-A6T6S
2.5 V 1.0% S-1222B25-V5T2U S-1222B25-E8T1U S-1222B25-E6T1U S-1222B25-U5T1U S-1222B25-S8T1U S-1222B25-M5T1U S-1222B25-A6T6S
3.0 V 1.0% S-1222B30-V5T2U S-1222B30-E8T1U S-1222B30-E6T1U S-1222B30-U5T1U S-1222B30-S8T1U S-1222B30-M5T1U S-1222B30-A6T6S
3.3 V 1.0% S-1222B33-V5T2U S-1222B33-E8T1U S-1222B33-E6T1U S-1222B33-U5T1U S-1222B33-S8T1U S-1222B33-M5T1U S-1222B33-A6T6S
5.0 V 1.0% S-1222B50-V5T2U S-1222B50-E8T1U S-1222B50-E6T1U S-1222B50-U5T1U S-1222B50-S8T1U S-1222B50-M5T1U S-1222B50-A6T6S
Remark Please contact our sales office for products with specifications other than the above output voltage.
4. 2 S-1222B/D Series D type
ON / OFF logic:
Active "H"
ON / OFF pin input voltage "H" (VSH) = 2.0 V min., ON / OFF pin input voltage "L" (VSL) = 0.8 V max.
Table 4
Output Voltage TO-252-5S(A)
HSOP-8A
HSOP-6
SOT-89-5
HTMSOP-8
SOT-23-5
DFN-6(1518)A
2.3 V 1.0%





 S-1222D23-A6T6S
2.4 V 1.0%





 S-1222D24-A6T6S
2.5 V 1.0% S-1222D25-V5T2U S-1222D25-E8T1U S-1222D25-E6T1U S-1222D25-U5T1U S-1222D25-S8T1U S-1222D25-M5T1U S-1222D25-A6T6S
3.0 V 1.0% S-1222D30-V5T2U S-1222D30-E8T1U S-1222D30-E6T1U S-1222D30-U5T1U S-1222D30-S8T1U S-1222D30-M5T1U S-1222D30-A6T6S
3.3 V 1.0% S-1222D33-V5T2U S-1222D33-E8T1U S-1222D33-E6T1U S-1222D33-U5T1U S-1222D33-S8T1U S-1222D33-M5T1U S-1222D33-A6T6S
5.0 V 1.0% S-1222D50-V5T2U S-1222D50-E8T1U S-1222D50-E6T1U S-1222D50-U5T1U S-1222D50-S8T1U S-1222D50-M5T1U S-1222D50-A6T6S
Remark Please contact our sales office for products with specifications other than the above output voltage.
4

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Rev.2.0_01
28 V INPUT, 200 mA VOLTAGE REGULATOR
S-1222B/D Series
Pin Configurations
1. TO-252-5S(A)
Top view
3
12
45
Figure 2
Pin No.
1
2
3
4
5
Table 5
Symbol
Description
VOUT
ON / OFF
Output voltage pin
ON / OFF pin
VSS
NC*1
GND pin
No connection
VIN Input voltage pin
*1. The NC pin is electrically open.
The NC pin can be connected to the VIN pin or the VSS pin.
2. HSOP-8A
Top view
1
2
3
4
8
7
6
5
Bottom view
81
72
63
54
*1
Pin No.
1
2
3
4
5
6
7
8
Table 6
Symbol
VOUT
NC*2
NC*2
ON / OFF
VSS
NC*2
NC*2
VIN
Description
Output voltage pin
No connection
No connection
ON / OFF pin
GND pin
No connection
No connection
Input voltage pin
Figure 3
*1. Connect the heat sink of backside at shadowed area to the board, and set electric potential GND.
However, do not use it as the function of electrode.
*2. The NC pin is electrically open.
The NC pin can be connected to the VIN pin or the VSS pin.
5