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S-19312 Series
www.ablicinc.com
© ABLIC Inc., 2017
AUTOMOTIVE, 125°C OPERATION,
36 V INPUT, 400 mA VOLTAGE REGULATOR
WITH RESET FUNCTION
Rev.1.0_01
The S-19312 Series, developed by using high-withstand voltage CMOS technology, is a positive voltage regulator with the
reset function, which has high-withstand voltage and high-accuracy output voltage. This IC has a built-in low on-resistance
output transistor which provides a 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.
High heat radiation TO-252-5S(A) and HSOP-8A packages enable high-density mounting.
Caution This product can be used in vehicle equipment and in-vehicle equipment. Before using the product in
the purpose, contact to ABLIC Inc. is indispensable.
Features
Regulator block
Output voltage:
Input voltage:
Output voltage accuracy:
Dropout voltage:
Output current:
Input and output capacitors:
Ripple rejection:
Built-in overcurrent protection circuit:
Built-in thermal shutdown circuit:
3.0 V to 5.3 V, selectable in 0.1 V step
4.0 V to 36.0 V
2.0% (Tj = 40°C to 150°C)
120 mV typ. (5.0 V output product, IOUT = 100 mA)
Possible to output 400 mA (VIN = VOUT(S) 1.0 V)*1
A ceramic capacitor of 2.2 F or more can be used.
70 dB typ. (f = 100 Hz)
Limits overcurrent of output transistor.
Detection temperature 170°C typ.
Detector block
Detection voltage:
Detection voltage accuracy:
Hysteresis width:
Release delay time:
Output form:
2.6 V to 5.0 V, selectable in 0.1 V step
100 mV (Tj = 40°C to 150°C)
0.12 V min.
18 ms typ. (CDLY = 47 nF)
Nch open-drain output (Built-in pull-up resistor)
Overall
Current consumption:
Operation temperature range:
Lead-free (Sn 100%), halogen-free
Withstand 45 V load dump
AEC-Q100 qualified*2
During operation: 60 A typ., 95 A max. (Tj = 40C to 150C)
Ta = 40°C to 125°C
*1. Please make sure that the loss of the IC will not exceed the power dissipation when the output current is large.
*2. Contact our sales office for details.
Applications
Constant-voltage power supply and reset circuit for automotive electric component
For automotive use (engine, transmission, suspension, ABS, related-devices for EV / HEV / PHEV, etc.)
Packages
TO-252-5S(A)
HSOP-8A
1

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AUTOMOTIVE, 125°C OPERATION, 36 V INPUT, 400 mA VOLTAGE REGULATOR WITH RESET FUNCTION
S-19312 Series
Rev.1.0_01
Block Diagram
*1
VIN
Overcurrent protection circuit
Thermal
shutdown
circuit
Reference
voltage
circuit
VOUT
VSS
*1. Parasitic diode
Reference
voltage
circuit
Voltage
detection
circuit
Figure 1
DLY
*1
RO
*1
2

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AUTOMOTIVE, 125°C OPERATION, 36 V INPUT, 400 mA VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.1.0_01
S-19312 Series
AEC-Q100 Qualified
This IC supports AEC-Q100 for operation temperature grade 1.
Contact our sales office for details of AEC-Q100 reliability specification.
Product Name Structure
Users can select the output voltage and detection voltage for the S-19312 Series. Refer to "1. Product name"
regarding the contents of product name, "3. Packages" regarding the package drawings and "4. Product name
list" for details of product names.
1. Product name
S-19312 B x x A - xxxx U 4
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
Operation temperature
A: Ta = 40C to 125C
*1. Refer to the tape drawing.
*2. Refer to "2. Product option list".
Detection voltage*2
F to Z, 0 to 5
Output voltage*2
C to Z, 0, 1
Product type
B: With DLY pin, VOUT detection (Detector)
2. Product option list
2. 1 Output voltage
Set Output
Voltage
Symbol
5.3 V
C
5.2 V
D
5.1 V
E
5.0 V
F
4.9 V
G
4.8 V
H
4.7 V
J
4.6 V
K
4.5 V
L
4.4 V
M
4.3 V
N
4.2 V
P
Set Output
Voltage
4.1 V
4.0 V
3.9 V
3.8 V
3.7 V
3.6 V
3.5 V
3.4 V
3.3 V
3.2 V
3.1 V
3.0 V
Symbol
Q
R
S
T
U
V
W
X
Y
Z
0
1
2. 2 Detection voltage
Set Detection
Voltage
Symbol
5.0 V
F
4.9 V
G
4.8 V
H
4.7 V
J
4.6 V
K
4.5 V
L
4.4 V
M
4.3 V
N
4.2 V
P
4.1 V
Q
4.0 V
R
3.9 V
S
3.8 V
T
Remark Set output voltage Set detection voltage0.3 V
Set Detection
Voltage
3.7 V
3.6 V
3.5 V
3.4 V
3.3 V
3.2 V
3.1 V
3.0 V
2.9 V
2.8 V
2.7 V
2.6 V
Symbol
U
V
W
X
Y
Z
0
1
2
3
4
5
3

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AUTOMOTIVE, 125°C OPERATION, 36 V INPUT, 400 mA VOLTAGE REGULATOR WITH RESET FUNCTION
S-19312 Series
Rev.1.0_01
3. Packages
Package Name
TO-252-5S(A)
HSOP-8A
Table 1
Dimension
VA005-A-P-SD
FH008-A-P-SD
Package Drawing Codes
Tape
Reel
VA005-A-C-SD
FH008-A-C-SD
VA005-A-R-SD
FH008-A-R-SD
Land
VA005-A-L-SD
FH008-A-L-SD
4. Product name list
Table 2
Output Voltage
Detection Voltage
TO-252-5S(A)
HSOP-8A
3.3 V 2.0%
2.9 V 0.1 V
S-19312BY2A-V5T2U4
S-19312BY2A-E8T1U4
5.0 V 2.0%
2.9 V 0.1 V
S-19312BF2A-V5T2U4
S-19312BF2A-E8T1U4
5.0 V 2.0%
5.0 V 2.0%
4.2 V 0.1 V
4.6 V 0.1 V
S-19312BFPA-V5T2U4
S-19312BFKA-V5T2U4
S-19312BFPA-E8T1U4
S-19312BFKA-E8T1U4
Remark Please contact our sales office for products with specifications other than the above.
4

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AUTOMOTIVE, 125°C OPERATION, 36 V INPUT, 400 mA VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.1.0_01
S-19312 Series
Pin Configurations
1. TO-252-5S(A)
Top view
3
Pin No.
1
2
3
4
5
Symbol
VOUT
DLY
VSS
RO
VIN
Table 3
Description
Voltage output pin (Regulator block)
Connection pin for delay time
adjustment capacitor
GND pin
Reset output pin
Voltage input pin (Regulator block)
12
45
Figure 2
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
Symbol
VOUT
NC*2
VSS
DLY
RO
NC*2
NC*2
VIN
Table 4
Description
Voltage output pin (Regulator block)
No connection
GND pin
Connection pin for delay time
adjustment capacitor
Reset output pin
No connection
No connection
Voltage input pin (Regulator block)
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 VDD pin or the VSS pin.
5