S-19246xxxH Series
www.ablic.com
© ABLIC Inc., 2020
AUTOMOTIVE, 105°C OPERATION,
10 V INPUT, 2000 mA VOLTAGE REGULATOR
WITH SOFT-START FUNCTION
Rev.1.0_00
The S-19246xxxH Series developed by using high-withstand voltage CMOS process technology, is a positive voltage
regulator with high-accuracy output voltage and high output current.
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. Also, the S-19246xxxH Series includes the soft-start function to adjust the output voltage rising
time at power-on or at the time when the ON / OFF pin is set to ON.
ABLIC Inc. offers a "thermal simulation service" which supports the thermal design in conditions when our power
management ICs are in use by customers. Our thermal simulation service will contribute to reducing the risk in the thermal
design at customers' development stage.
ABLIC Inc. also offers FIT rate calculated based on actual customer usage conditions in order to support customer
functional safety design.
Contact our sales representatives for details.
Caution This product can be used in vehicle equipment and in-vehicle equipment. Before using the product for
these purposes, it is imperative to contact our sales representatives.
Features
• Output voltage:
• Input voltage:
• Output voltage accuracy:
• Dropout voltage:
• Current consumption:
• Output current:
• Ripple rejection:
• Built-in overcurrent protection circuit:
• Built-in thermal shutdown circuit:
• Built-in soft-start circuit:
• Built-in ON / OFF circuit:
• Operation temperature range:
• Lead-free (Sn 100%), halogen-free
• AEC-Q100 qualified *2
1.0 V to 6.0 V, selectable in 0.05 V step
2.5 V to 10.0 V
±2.3% (Tj = −40°C to +105°C)
0.62 V typ. (3.0 V output product, at IOUT = 2000 mA)
During operation: 120 μA typ., 150 μA max. (Tj = −40°C to +150°C)
During power-off: 0.1 μA typ., 4.5 μA max. (Tj = −40°C to +105°C)
Possible to output 2000 mA (at VIN ≥ VOUT(S) + 1.0 V)*1
60 dB typ. (at f = 1.0 kHz)
Limits overcurrent of output transistor.
Detection temperature 170°C typ.
Adjusts output voltage rising time at power-on or at the time when
ON / OFF pin is set to ON.
tSS = 6.0 ms typ. (CSS = 10 nF)
Soft-start time can be changed by the capacitor (CSS).
Ensures long battery life
Discharge shunt function "available" / "unavailable" is selectable.
Pull-down function "available" / "unavailable" is selectable.
Ta = −40°C to +105°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 representatives for details.
Applications
• Constant-voltage power supply for telecommunication module
• Constant-voltage power supply for home electric appliance
• For automotive use (car body, headlight, ITS, accessory, car navigation system, car audio system, etc.)
Package
• TO-252-5S(A)
1
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
S-19246xxxH Series
Rev.1.0_00
Block Diagram
*1
VOUT
VIN
Overcurrent protection circuit
Thermal shutdown circuit
+
ON / OFF
circuit
ON / OFF
−
*2
*3
Reference
voltage circuit
Soft-start
circuit
*1
SSC
*1
VSS
Product
Type
E
F
G
H
ON / OFF Logic
Active "H"
Active "H"
Active "H"
Active "H"
Soft-start Time
Changeable by capacitor (CSS)
Changeable by capacitor (CSS)
Changeable by capacitor (CSS)
Changeable by capacitor (CSS)
Discharge Shunt
Function*2
Available
Available
Unavailable
Unavailable
Pull-down Resistor*3
Available
Unavailable
Available
Unavailable
*1. Parasitic diode
*2. E / F type (With discharge shunt function): ON, G / H type (Without discharge shunt function): OFF
*3. E / G type (With pull-down resistor): ON, F / H type (Without pull-down resistor): OFF
Figure 1
2
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.1.0_00
S-19246xxxH Series
AEC-Q100 Qualified
This IC supports AEC-Q100 for operation temperature grade 2.
Contact our sales representatives for details of AEC-Q100 reliability specification.
Product Name Structure
Users can select the product type, output voltage for the S-19246xxxH Series. Refer to"1. Product name" regarding
the contents of product name, "2. Function list of product type" regarding the product type, "3. Package"
regarding the package drawings and "4. Product name list" for details of product names.
1.
Product name
S-19246 x
xx H - V5T2 U
Environmental code
U:
Lead-free (Sn 100%), halogen-free
Package abbreviation and IC packing specifications*1
V5T2:
TO-252-5S(A), Tape
Operation temperature
H:
Ta = −40°C to +105°C
Set output voltage*2
10 to 60
(e.g., when the output voltage is 1.0 V, it is expressed as 10.)
Product type*3
E to H
*1.
*2.
*3.
Refer to the tape drawing.
If you request the product which has 0.05 V step, contact our sales representatives.
Refer to "2. Function list of product type".
3
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
S-19246xxxH Series
Rev.1.0_00
2.
Function list of product type
Table 1
3.
Pull-down
Resistor
ON / OFF
Logic
E
Active "H"
Changeable by
the capacitor (CSS)
Available
Available
F
Active "H"
Changeable by
the capacitor (CSS)
Available
Unavailable
G
Active "H"
Changeable by
the capacitor (CSS)
Unavailable
Available
H
Active "H"
Changeable by
the capacitor (CSS)
Unavailable
Unavailable
Soft-start Time
Package
Table 2
Package Name
TO-252-5S(A)
4
Discharge
Shunt Function
Product
Type
Dimension
VA005-A-P-SD
Package Drawing Codes
Tape
VA005-A-C-SD
Reel
VA005-A-R-SD
Land
VA005-A-L-SD
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.1.0_00
S-19246xxxH Series
4.
Product name list
4. 1
S-19246xxxH Series E type
ON / OFF logic
Pull-down resistor
: Active "H"
: Available
Output Voltage
Discharge shunt function : Available
Soft-start time
: Changeable by CSS
Table 3
TO-252-5S(A)
3.3 V ± 2.3%
5.0 V ± 2.3%
Remark
4. 2
S-19246E33H-V5T2U
S-19246E50H-V5T2U
Please contact our sales representatives for products other than the above.
S-19246xxxH Series F type
ON / OFF logic
Pull-down resistor
: Active "H"
: Unavailable
Discharge shunt function : Available
Soft-start time
: Changeable by CSS
Table 4
Output Voltage
3.3 V ± 2.3%
5.0 V ± 2.3%
Remark
4. 3
TO-252-5S(A)
S-19246F33H-V5T2U
S-19246F50H-V5T2U
Please contact our sales representatives for products other than the above.
S-19246xxxH Series G type
ON / OFF logic
Pull-down resistor
: Active "H"
: Available
Discharge shunt function : Unavailable
Soft-start time
: Changeable by CSS
Table 5
Output Voltage
TO-252-5S(A)
3.3 V ± 2.3%
5.0 V ± 2.3%
Remark
4. 4
S-19246G33H-V5T2U
S-19246G50H-V5T2U
Please contact our sales representatives for products other than the above.
S-19246xxxH Series H type
ON / OFF logic
Pull-down resistor
: Active "H"
: Unavailable
Discharge shunt function : Unavailable
Soft-start time
: Changeable by CSS
Table 6
Output Voltage
3.3 V ± 2.3%
5.0 V ± 2.3%
Remark
TO-252-5S(A)
S-19246H33H-V5T2U
S-19246H50H-V5T2U
Please contact our sales representatives for products other than the above.
5
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
S-19246xxxH Series
Rev.1.0_00
Pin Configuration
1. TO-252-5S(A)
Table 7
1
Top view
Pin No.
3
1
VOUT
Output voltage pin
2
ON / OFF
ON / OFF pin
3
VSS
GND pin
4
SSC*1
Soft-start pin
5
VIN
Input voltage pin
2
4
Symbol
Description
5
Figure 2
*1. Connect a capacitor between the SSC pin and the VSS pin.
The soft-start time at power-on and at the time when the ON / OFF pin is set to ON can be adjusted according to
the capacitance.
6
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.1.0_00
S-19246xxxH Series
Absolute Maximum Ratings
Table 8
(Ta = +25°C unless otherwise specified)
Item
Symbol
Absolute Maximum Rating
VSS − 0.3 to VSS + 12
Unit
VON / OFF
VSS − 0.3 to VIN + 0.3 ≤ VSS + 12
V
VSSC
V
VIN
Input voltage
V
Output voltage
VOUT
VSS − 0.3 to VIN + 0.3 ≤ VSS + 12
VSS − 0.3 to VIN + 0.3 ≤ VSS + 12
Output current
IOUT
2000
mA
V
Junction temperature
Tj
−40 to +150
°C
Operation ambient temperature
Topr
−40 to +105
°C
Storage temperature
Tstg
−40 to +150
°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.
Thermal Resistance Value
Table 9
Item
Symbol
Condition
Board A
Board B
Junction-to-ambient thermal resistance*1 θJA
TO-252-5S(A) Board C
Board D
Board E
*1. Test environment: compliance with JEDEC STANDARD JESD51-2A
Remark
Min.
−
−
−
−
−
Typ.
86
60
38
31
28
Max.
−
−
−
−
−
Unit
°C/W
°C/W
°C/W
°C/W
°C/W
Refer to " Power Dissipation" and "Test Board" for details.
7
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
S-19246xxxH Series
Rev.1.0_00
Electrical Characteristics
Table 10 (1 / 2)
Item
Output voltage*1
Output current*2
Symbol
VOUT(E)
IOUT
Dropout
voltage*3
Vdrop
Line regulation
ΔVOUT1
ΔVIN • VOUT
Load regulation
Current
consumption
during
operation
ΔVOUT2
ISS1
Current
consumption
during
power-off
ISS2
Input voltage
VIN
8
Condition
(Tj = −40°C to +150°C unless otherwise specified)
Test
Min.
Typ.
Max. Unit
Circuit
VOUT(S)
VOUT(S)
VOUT(S) < 1.5 V
VOUT(S)
V
1
× 0.977
× 1.023
VIN = 2.5 V, IOUT = 100 mA,
Tj = −40°C to +105°C
VIN = VOUT(S) + 1.0 V,
1.5 V ≤ VOUT(S)
IOUT = 100 mA,
Tj = −40°C to +105°C
1.0 V ≤ VOUT(S) < 2.0 V
VIN ≥ VOUT(S) + 1.8 V
VIN ≥ VOUT(S) + 1.4 V
2.0 V ≤ VOUT(S) < 3.0 V
VIN ≥ VOUT(S) + 1.0 V
3.0 V ≤ VOUT(S) ≤ 6.0 V
1.0 V ≤ VOUT(S) < 2.0 V
IOUT = 300 mA,
2.0 V ≤ VOUT(S) < 2.6 V
Ta = +25°C
2.6 V ≤ VOUT(S) ≤ 6.0 V
1.0 V ≤ VOUT(S) < 2.0 V
IOUT = 2000 mA,
2.0 V ≤ VOUT(S) < 3.0 V
Ta = +25°C
3.0 V ≤ VOUT(S) ≤ 6.0 V
2.5 V ≤ VIN ≤ 10 V,
VOUT(S) < 2.0 V
IOUT = 100 mA, Ta = +25°C
VOUT(S) + 0.5 V ≤ VIN ≤ 10 V,
2.0 V ≤ VOUT(S)
IOUT = 100 mA, Ta = +25°C
VIN = VOUT(S) + 1.8 V,
1 mA ≤ IOUT ≤ 2000 mA, 1.0 V ≤ VOUT(S) < 2.0 V
Ta = +25°C
VIN = VOUT(S) + 1.4 V,
1 mA ≤ IOUT ≤ 2000 mA, 2.0 V ≤ VOUT(S) < 3.0 V
Ta = +25°C
VIN = VOUT(S) + 1.0 V,
1 mA ≤ IOUT ≤ 2000 mA, 3.0 V ≤ VOUT(S) ≤ 6.0 V
Ta = +25°C
VIN = 2.5 V,
VOUT(S) < 1.5 V
ON / OFF pin = ON, no load
VIN = VOUT(S) + 1.0 V,
1.5 V ≤ VOUT(S)
ON / OFF pin = ON, no load
VIN = 2.5 V,
ON / OFF pin = OFF, no load, VOUT(S) < 1.5 V
Tj = −40°C to +105°C
VIN = VOUT(S) + 1.0 V,
ON / OFF pin = OFF, no load, 1.5 V ≤ VOUT(S)
Tj = −40°C to +105°C
−
VOUT(S)
VOUT(S)
VOUT(S)
× 0.977
× 1.023
−
−
−
V
1
mA
mA
mA
V
V
V
V
V
V
3
3
3
1
1
1
1
1
1
2000*5
2000*5
2000*5
−
−
−
−
−
−
0.52
0.11
1.10
0.75
0.62
−
−
−
−
−
−
−
−
−
−
0.05
0.2
%/V
1
−
0.05
0.2
%/V
1
−
15
30
mV
1
−
15
30
mV
1
−
15
30
mV
1
−
120
150
μA
2
−
120
150
μA
2
−
0.1
4.5
μA
2
−
0.1
4.5
μA
2
2.5
−
10
V
−
*4
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.1.0_00
S-19246xxxH Series
Table 10 (2 / 2)
Item
ON / OFF pin
input voltage "H"
ON / OFF pin
input voltage "L"
ON / OFF pin
input current "H"
ON / OFF pin
input current "L"
Ripple rejection
Short-circuit current
Symbol
VSH
VSL
VIN = 2.5 V, RL = 1 kΩ,
determined by VOUT output
level
VIN = VOUT(S) + 1.0 V,
RL = 1 kΩ, determined by
VOUT output level
VIN = 2.5 V, RL = 1 kΩ,
determined by VOUT output
level
VIN = VOUT(S) + 1.0 V,
RL = 1 kΩ, determined by
VOUT output level
VOUT(S) < 1.5 V
2.1
−
−
V
4
1.5 V ≤ VOUT(S)
2.1
−
−
V
4
VOUT(S) < 1.5 V
−
−
0.6
V
4
1.5 V ≤ VOUT(S)
−
−
0.6
V
4
−0.1
0.8
−
2.5
0.1
7.8
μA
μA
4
4
−0.1
−
0.1
μA
4
1.0 V ≤ VOUT(S) < 1.5 V
−
60
−
dB
5
1.5 V ≤ VOUT(S) < 2.0 V
−
55
−
dB
5
2.0 V ≤ VOUT(S) < 2.6 V
−
55
−
dB
5
2.6 V ≤ VOUT(S) ≤ 6.0 V
−
50
−
dB
5
1.0 V ≤ VOUT(S) < 2.0 V
330
460
590
mA
3
2.0 V ≤ VOUT(S) < 3.0 V
330
460
590
mA
3
3.0 V ≤ VOUT(S) ≤ 6.0 V
330
460
590
mA
3
Junction temperature
−
170
−
°C
−
Junction temperature
−
135
−
°C
−
E / F type
−
100
−
Ω
6
E / G type
1.3
4.0
12
MΩ
4
ISH
VIN = 10 V, VON / OFF = 10 V
ISL
VIN = 10 V, VON / OFF = 0 V
|RR|
Ishort
Thermal shutdown
TSD
detection temperature
Thermal shutdown
TSR
release temperature
Discharge shunt
RLOW
resistance during
power-off
ON / OFF pin
pull-down resistance
Condition
RPD
(Tj = −40°C to +150°C unless otherwise specified)
Test
Min.
Typ.
Max. Unit
Circuit
VIN = 3.0 V, f = 1 kHz,
ΔVrip = 0.5 Vrms,
IOUT = 100 mA
VIN = VOUT(S) + 1.0 V,
f = 1 kHz,
ΔVrip = 0.5 Vrms,
IOUT = 100 mA
VIN = VOUT(S) + 1.8 V,
ON / OFF pin = ON,
VOUT = 0 V, Ta = +25°C
VIN = VOUT(S) + 1.4 V,
ON / OFF pin = ON,
VOUT = 0 V, Ta = +25°C
VIN = VOUT(S) + 1.0 V,
ON / OFF pin = ON,
VOUT = 0 V, Ta = +25°C
VIN = 10 V, VOUT = 0.1 V
−
F / H type
E / G type
*1. VOUT(S): Set output voltage
VOUT(E): Actual output voltage
Output voltage when fixing IOUT (= 100 mA) and inputting 2.5 V or VOUT(S) + 1.0 V.
*2. The output current at which the output voltage becomes 95% of VOUT(E) after gradually increasing the output current.
*3. Vdrop = VIN1 − (VOUT3 × 0.98)
VIN1 is the input voltage at which the output voltage becomes 98% of VOUT3 after gradually decreasing the input voltage.
VOUT3 is the output voltage when VIN = VOUT(S) + 1.0 V, and IOUT = 300 mA.
VOUT3 is the output voltage when VIN complies with output current conditions, and IOUT = 2000 mA.
*4. The dropout voltage is limited by the difference between the input voltage (min. value) and the set output voltage.
In case of 1.0 V ≤ VOUT(S) < 1.5 V: 2.5 V − VOUT(S) = Vdrop
In case of 1.5 V ≤ VOUT(S) < 2.0 V: (VOUT(S) + 1.0 V) − VOUT(S) = 1.0 V
*5. Due to limitation of the power dissipation, this value may not be satisfied. Attention should be paid to the power
dissipation when the output current is large.
This specification is guaranteed by design.
9
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
S-19246xxxH Series
Rev.1.0_00
Test Circuits
VIN
+
VOUT
SSC
ON / OFF
V
A
+
VSS
Set to ON
Figure 3
VIN
Test Circuit 1
VOUT
SSC
ON / OFF
VSS
Set to VIN or + A
GND
Figure 4
VIN
Test Circuit 2
VOUT
SSC
ON / OFF
+
A
V
+
VSS
Set to ON
Figure 5
VIN
+
VOUT
SSC
A
ON / OFF
Figure 6
10
Test Circuit 3
V
VSS
Test Circuit 4
+
RL
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.1.0_00
S-19246xxxH Series
VIN
VOUT
SSC
ON / OFF
V
+
RL
VSS
Set to ON
Figure 7
VIN
Test Circuit 5
VOUT
SSC
ON / OFF
A
+
V
+
VSS
Set to GND
Figure 8
Test Circuit 6
11
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
S-19246xxxH Series
Rev.1.0_00
Standard Circuit
Input
VIN
CIN*1
Output
VOUT
ON / OFF
CL
SSC
CSS
*2
*3
VSS
Single GND
*1.
*2.
*3.
GND
CIN is a capacitor for stabilizing the input.
CL is a capacitor for stabilizing the output.
CSS is a capacitor for soft-start.
Figure 9
Caution The above connection diagram and constants will not guarantee successful operation. Perform
thorough evaluation including the temperature characteristics with an actual application to set the
constants.
12
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.1.0_00
S-19246xxxH Series
Condition of Application
Input capacitor (CIN):
Output capacitor (CL):
A ceramic capacitor with capacitance of 2.2 μF or more is recommended.
A ceramic capacitor with capacitance of 2.2 μF or more is recommended.
Caution Generally, in a voltage regulator, an oscillation may occur depending on the selection of the external
parts. Perform thorough evaluation including the temperature characteristics with an actual
application using the above capacitors to confirm no oscillation occurs.
Selection of Input Capacitor (CIN) and Output Capacitor (CL)
The S-19246xxxH Series requires CL between the VOUT pin and the VSS pin for phase compensation. The operation
is stabilized by a ceramic capacitor with capacitance of 2.2 μF or more. When using an OS capacitor, a tantalum
capacitor or an aluminum electrolytic capacitor, the capacitance also must be 2.2 μF or more. However, an oscillation
may occur depending on the equivalent series resistance (ESR).
Moreover, the S-19246xxxH Series requires CIN between the VIN pin and the VSS pin for a stable operation.
Generally, an oscillaiton may occur when a voltage regulator is used under the conditon that the impedance of the
power supply is high.
Note that the output voltage transient characteristics varies depending on the capacitance of CIN and CL and the value
of ESR.
Caution Perform thorough evaluation including the temperature characteristics with an actual application to
select CIN and CL.
Selection of Capacitor for Soft-start (CSS)
The S-19246xxxH Series requires the capacitor for soft-start (CSS) between the SSC pin and the VSS pin. Over the
entire temperature range, the S-19246xxxH Series operates stably with a ceramic capacitor of 0.68 nF or more.
According to CSS capacitance, the rising speed of the output voltage is adjustable. The time that the output voltage
rises to 99% is 6.0 ms typ. at CSS = 10 nF. The recommended value for applications is 0.68 nF ≤ CSS ≤ 168 nF,
however; define the values by sufficient evaluation including the temperature characteristics under the usage
condition.
13
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
S-19246xxxH Series
Rev.1.0_00
Explanation of Terms
1.
Low dropout voltage regulator
This is a voltage regulator which made dropout voltage small by its built-in low on-resistance output transistor.
2.
Output voltage (VOUT)
This voltage is output at an accuracy of ±2.3% when the input voltage, the output current and the temperature are
in a certain condition*1.
*1. Differs depending on the product.
Caution
3.
If the certain condition is not satisfied, the output voltage may exceed the accuracy range of ±2.3%.
Refer to " Electrical Characteristics" and " Characteristics (Typical Data)" for details.
ΔVOUT1
ΔVIN • VOUT
Line regulation
Indicates the dependency of the output voltage against the input voltage. That is, the value shows how much the
output voltage changes due to a change in the input voltage after fixing output current constant.
4.
Load regulation (ΔVOUT2)
Indicates the dependency of the output voltage against the output current. That is, the value shows how much the
output voltage changes due to a change in the output current after fixing input voltage constant.
5.
Dropout voltage (Vdrop)
Indicates the difference between input voltage (VIN1) and the output voltage when the output voltage becomes 98%
of the output voltage value (VOUT3) at VIN = VOUT(S) + 1.0 V, and IOUT = 300 mA after the input voltage (VIN) is
decreased gradually.
Vdrop = VIN1 − (VOUT3 × 0.98)
14
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.1.0_00
S-19246xxxH Series
Operation
1.
Basic operation
Figure 10 shows the block diagram of the S-19246xxxH Series to describe the basic operation.
The error amplifier compares the feedback voltage (Vfb) whose output voltage (VOUT) is divided by the feedback
resistors (Rs and Rf) with the reference voltage (Vref). The error amplifier controls the output transistor, consequently,
the regulator starts the operation that keeps VOUT constant without the influence of the input voltage (VIN).
VIN
*1
Current
supply
VOUT
Error amplifier
Vref
−
+
Rf
Vfb
Reference voltage
circuit
Rs
VSS
*1.
Parasitic diode
Figure 10
2.
Output transistor
In the S-19246xxxH Series, a low on-resistance P-channel MOS FET is used between the VIN pin and the VOUT
pin as the output transistor. In order to keep VOUT constant, the on-resistance of the output transistor varies
appropriately according to the output current (IOUT).
Caution Since a parasitic diode exists between the VIN pin and the VOUT pin due to the structure of the
transistor, the IC may be damaged by a reverse current if VOUT becomes higher than VIN.
Therefore, be sure that VOUT does not exceed VIN + 0.3 V.
15
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
S-19246xxxH Series
Rev.1.0_00
3.
ON / OFF pin
The ON / OFF pin controls the internal circuit and the output transistor in order to start and stop the regulator. When
the ON / OFF pin is set to OFF, the internal circuit stops operating and the output transistor between the VIN pin
and the VOUT pin is turned off, reducing current consumption significantly.
Note that the current consumption increases when a voltage of 0.6 V to VIN − 0.3 V is applied to the ON / OFF pin.
The ON / OFF pin is configured as shown in Figure 11 and Figure 12.
3. 1
S-19246xxxH Series E / G type
Since the ON / OFF pin is internally pulled down to the VSS pin in the floating status, the VOUT pin is set to the
VSS level.
Refer to " Electrical Characteristics" for the ON / OFF pin current.
3. 2
S-19246xxxH Series F / H type
Since the ON / OFF pin is neither pulled down nor pulled up, do not use these types in the floating status. When
not using the ON / OFF pin, connect it to the VIN pin.
Table 11
Product Type
E/F/G/H
E/F/G/H
ON / OFF Pin
"H" : ON
"L" : OFF
Internal Circuit
Operate
Stop
VOUT Pin Voltage
Constant value*1
Pulled down to VSS*3
Current Consumption
ISS1*2
ISS2
*1. The constant value is output due to the regulating based on the set output voltage value.
*2. Note that the IC's current consumption increases as much as current flows into the pull-down resistor
when the ON / OFF pin is connected to the VIN pin and the S-19246xxxH Series E / G type is
operating (refer to Figure 11).
*3. The VOUT pin voltage of the S-19246xxxH Series E / F type is pulled down to VSS due to combined
resistance (RLOW = 100 Ω typ.) of the discharge shunt circuit and the feedback resistors, and a load.
VIN
VIN
ON / OFF
ON / OFF
VSS
Figure 11
16
S-19246xxxH Series E / G type
VSS
Figure 12
S-19246xxxH Series F / H type
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.1.0_00
S-19246xxxH Series
4.
Discharge shunt function (S-19246xxxH Series E / F type)
The S-19246xxxH Series E / F type has a built-in discharge shunt circuit to discharge the output capacitance. The
output capacitance is discharged as follows so that the VOUT pin reaches the VSS level.
(1) The ON / OFF pin is set to OFF level.
(2) The output transistor is turned off.
(3) The discharge shunt circuit is turned on.
(4) The output capacitor discharges.
Since the S-19246xxxH Series G / H type does not have a discharge shunt circuit, the VOUT pin is set to the VSS
level through several hundred kΩ internal divided resistors between the VOUT pin and the VSS pin. The
S-19246xxxH Series E / F type allows the VOUT pin to reach the VSS level rapidly due to the discharge shunt circuit.
S-19246xxxH Series
Output transistor: OFF
*1
VOUT
VIN
Discharge shunt circuit
: ON
ON / OFF
*1
ON / OFF circuit
Output
capacitor
(CL)
ON / OFF pin: OFF
Current flow
GND
VSS
*1. Parasitic diode
Figure 13
5.
Pull-down resistor (S-19246xxxH Series E / G type)
The ON / OFF pin is internally pulled down to the VSS pin in the floating status, so the VOUT pin is set to the VSS
level.
Note that the IC's current consumption increases as much as current flows into the pull-down resistor of
4.0 MΩ typ. when the ON / OFF pin is connected to the VIN pin.
17
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
S-19246xxxH Series
Rev.1.0_00
6.
Overcurrent protection circuit
The S-19246xxxH Series has a built-in overcurrent protection circuit to limit the overcurrent of the output transistor.
When the VOUT pin is shorted to the VSS pin, that is, at the time of the output short-circuit, the output current is
limited to 460 mA typ. due to the overcurrent protection circuit operation. The S-19246xxxH Series restarts
regulating when the output transistor is released from the overcurrent status.
Caution
7.
This overcurrent protection circuit does not work as for thermal protection. For example, when
the output transistor keeps the overcurrent status long at the time of output short-circuit or
due to other reasons, pay attention to the conditions of the input voltage and the load current
so as not to exceed the power dissipation.
Thermal shutdown circuit
The S-19246xxxH Series has a built-in thermal shutdown circuit to limit overheating. When the junction temperature
increases to 170°C typ., the thermal shutdown circuit becomes the detection status, and the regulating is stopped.
When the junction temperature decreases to 135°C typ., the thermal shutdown circuit becomes the release status,
and the regulator is restarted.
If the thermal shutdown circuit becomes the detection status due to self-heating, the regulating is stopped and VOUT
decreases. For this reason, the self-heating is limited and the temperature of the IC decreases. The thermal
shutdown circuit becomes release status when the temperature of the IC decreases, and the regulating is restarted
after the soft-start operation is finished, thus the self-heating is generated again. Repeating this procedure makes
the waveform of VOUT into a pulse-like form. This phenomenon continues unless decreasing either or both of the
input voltage and the output current in order to reduce the internal power consumption, or decreasing the ambient
temperature. Note that the product may suffer physical damage such as deterioration if the above phenomenon
occurs continuously.
Caution
When the heat radiation of the application is not in a good condition, the self-heating cannot be
limited immediately, and the IC may suffer physical damage. Perform thorough evaluation with
an actual application to confirm no problems happen.
Table 12
Thermal Shutdown Circuit
Release: 135°C typ.*1
Detection: 170°C typ.*1
*1.
*2.
*3.
18
VOUT Pin Voltage
Constant value*2
Pulled down to VSS*3
Junction temperature
The constant value is output due to the regulating based on the set output voltage value.
The VOUT pin voltage is pulled down to VSS due to the feedback resistors (Rs and Rf) and a load.
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.1.0_00
S-19246xxxH Series
8.
Soft-start function
The S-19246xxxH Series has the built-in soft-start circuit to suppress the inrush current and overshoot of the output
voltage generated at power-on or at the time when the ON / OFF pin is set to ON. The soft-start time (tSS) is the
time period from when the output voltage rises slowly immediately after power-on or when the ON / OFF pin is set
to ON until when the output voltage rises to 99%.
Input voltage
(VIN, VON / OFF)
VIN
SSC pin voltage
(VSSC)
VOUT(E) × 0.99
Output voltage
(VOUT(E))
Soft-start time (tSS)
t [ms]
Figure 14
tSS can be adjusted by the external capacitor (CSS) connected between the SSC pin and the VSS pin, and is
calculated by using the following calculation.
tSS [ms] = Soft-start coefficient*1 [ms / nF] × CSS [nF] + tD0*2 [ms]
*1. It is determined by charging the built-in constant current (approx. 2.1 μA) to CSS.
*2. The delay time of internal capacitance.
When the CSS value is sufficiently large, the tD0 value can be disregarded. When the ON / OFF pin is set to OFF,
the electrical charge charged in CSS is discharged by the transistor of the discharge shunt circuit.
Table 13
Operation Temperature
Min.
Typ.
Max.
Tj = +150°C
0.391
0.528
0.691
Tj = +105°C
0.398
0.539
0.690
Tj = +25°C
0.436
0.574
0.704
Tj = −40°C
0.467
0.604
0.717
Table 14
Delay Time of Internal Capacitnace (tD0)
Operation Temperature
Tj = −40°C to +150°C
Caution
Soft-start Coefficient [ms / nF]
Min.
Typ.
Max.
0.032 ms
0.047 ms
0.108 ms
The above calculation will not guarantee successful operation. Perform thorough evaluation using
the actual application including the temperature characteristics under the actual usage conditions
to determine CSS capacitance. Refer to " Condition of Application" and " Characteristics (Typical
Data)" for details.
19
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
S-19246xxxH Series
Rev.1.0_00
Precautions
• Generally, when a voltage regulator is used under the condition that the load current value is small (1 mA or less),
the output voltage may increase due to the leakage current of an output transistor.
• Generally, when a voltage regulator is used under the condition that the temperature is high, the output voltage may
increase due to the leakage current of an output transistor.
• Generally, when the ON / OFF pin is used under the condition of OFF, the output voltage may increase due to the
leakage current of an output transistor.
• Generally, when a voltage regulator is used under the condition that the impedance of the power supply is high, an
oscillation may occur. Perform thorough evaluation including the temperature characteristics with an actual
application to select CIN.
• Generally, in a voltage regulator, an oscillation may occur depending on the selection of the external parts. The
following use conditions are recommended in the S-19246xxxH Series; however, perform thorough evaluation
including the temperature characteristics with an actual application to select CIN and CL.
Input capacitor (CIN): A ceramic capacitor with capacitance of 2.2 μF or more is recommended.
Output capacitor (CL): A ceramic capacitor with capacitance of 2.2 μF or more is recommended.
• Generally, in a voltage regulator, the values of an overshoot and an undershoot
depending on the variation factors of input voltage start-up, input voltage fluctuation,
capacitance of CIN or CL and the value of the equivalent series resistance (ESR), which
stable operation. Perform thorough evaluation including the temperature characteristics
select CIN and CL.
in the output voltage vary
load fluctuation etc., or the
may cause a problem to the
with an actual application to
• Generally, in a voltage regulator, an overshoot may occur in the output voltage momentarily if the input voltage
steeply changes when the input voltage is started up, the soft-start operation is performed, the input voltage
fluctuates, etc. Perform thorough evaluation including the temperature characteristics with an actual application to
confirm no problems happen.
• Generally, in a voltage regulator, if the VOUT pin is steeply shorted with GND, a negative voltage exceeding the
absolute maximum ratings may occur in the VOUT pin due to resonance phenomenon of the inductance and the
capacitance including CL on the application. The resonance phenomenon is expected to be weakened by inserting a
series resistor into the resonance path, and the negative voltage is expected to be limited by inserting a protection
diode between the VOUT pin and the VSS pin.
• If the input voltage is started up steeply under the condition that the capacitance of CL is large, the thermal
shutdown circuit may be in the detection status by self-heating due to the charge current to CL.
• Make sure of the conditions for the input voltage, output voltage and the load current so that the internal loss does
not exceed the power dissipation.
• Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic
protection circuit.
• When considering the output current value that the IC is able to output, make sure of the output current value
specified in Table 10 in " Electrical Characteristics" and footnote *5 of the table.
• Wiring patterns on the application related to the VIN pin, the VOUT pin and the VSS pin should be designed so that
the impedance is low. When mounting CIN between the VIN pin and the VSS pin and CL between the VOUT pin and
the VSS pin, connect the capacitors as close as possible to the respective destination pins of the IC.
• In the package equipped with heat sink of backside, mount the heat sink firmly. Since the heat radiation differs
according to the condition of the application, perform thorough evaluation with an actual application to confirm no
problems happen.
• ABLIC Inc. claims no responsibility for any disputes arising out of or in connection with any infringement by products
including this IC of patents owned by a third party.
20
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.1.0_00
S-19246xxxH Series
Characteristics (Typical Data)
Output voltage vs. Output current (When load current increases) (Ta = +25°C)
VOUT = 1.0 V
VOUT [V]
1. 1
1. 2
3.6
1.0
3.0
0.8
VIN = 2.5 V
0.6
0.4
0.2
0.0
1. 3
VOUT = 3.0 V
1.2
VOUT [V]
1.
VIN = 4.0 V
2.4
1.8
1.2
0.6
0.0
0
500
1000 1500
IOUT [mA]
2000
2500
0
500
1000 1500
IOUT [mA]
2000
2500
VOUT = 6.0 V
7.2
VOUT [V]
6.0
VIN = 7.0 V
4.8
3.6
2.4
1.2
0.0
Remark
0
500
1000 1500 2000 2500
IOUT [mA]
In determining the output current, attention should be paid to the following.
1. The minimum output current value and footnote *5 of Table 10 in " Electrical Characteristics"
2. Power dissipation
Output voltage vs. Input voltage (Ta = +25°C)
VOUT [V]
2. 1
VOUT = 1.0 V
2. 2
3.1
1.0
3.0
0.9
2.9
0.8
IOUT = 1 mA
IOUT = 50 mA
IOUT = 100 mA
0.7
0.6
0.5
2. 3
VOUT = 3.0 V
1.1
VOUT [V]
2.
0
1
2
3
4
5 6
VIN [V]
IOUT = 1 mA
IOUT = 50 mA
IOUT = 100 mA
2.8
2.7
2.6
7
8
9 10
2.5
2
3
4
5
6
7
VIN [V]
8
9
10
VOUT = 6.0 V
6.1
VOUT [V]
6.0
5.9
5.8
5.7
IOUT = 1 mA
IOUT = 50 mA
IOUT = 100 mA
5.6
5.5
VIN [V]
21
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
S-19246xxxH Series
Rev.1.0_00
3.
Dropout voltage vs. Output current
3. 1
VOUT = 3.0 V
3. 2
1.00
1.00
Ta = +105°C
Ta= +85°C
0.60
Ta = +25°C
0.40
0.20
Ta = +25°C
0.40
Ta = −40°C
0.00
0
500
1000 1500
IOUT [mA]
2000
2500
0
500
1000 1500
IOUT [mA]
2000
2500
Dropout voltage vs. Temperature
4. 1
VOUT = 3.0 V
4. 2
1.0
IOUT = 2000 mA
Vdrop [V]
Vdrop [V]
0.8
0.6
IOUT = 1000 mA
0.4
IOUT = 300 mA
0.2
IOUT = 2000 mA
0.6
0.4
IOUT = 1000 mA
IOUT = 300 mA
0.2
0.0
0.0
−40 −25
0
25
50
Ta [°C]
75
105
Dropout voltage vs. Set output voltage (Ta = +25°C)
0.8
0.6
Vdrop [V]
VOUT = 6.0 V
1.0
0.8
IOUT = 1000 mA
0.4
IOUT = 2000 mA
IOUT = 300 mA
0.2
IOUT = 100 mA
0.0
2.5
22
Ta= +85°C
0.60
0.20
Ta = −40°C
0.00
5.
Ta = +105°C
0.80
Vdrop [V]
Vdrop [V]
0.80
4.
VOUT = 6.0 V
3.0
3.5
4.0 4.5
VOUT [V]
5.0
5.5
6.0
−40 −25
0
25
50
Ta [°C]
75
105
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.1.0_00
S-19246xxxH Series
6.
Output voltage vs. Junction temperature
6. 1
VOUT = 1.0 V
6. 2
VOUT = 3.0 V
VIN = 2.5 V
VIN = 4.0 V
3.30
3.20
1.05
VOUT [V]
VOUT [V]
1.10
1.00
0.95
3.10
3.00
2.90
2.80
0.90
−40 −25
0
25
2.70
−40 −25
50 75 100 125 150
Tj [°C]
0
25
50 75 100 125 150
Tj [°C]
VOUT = 6.0 V
6. 3
VIN = 7.0 V
VOUT [V]
6.60
6.30
6.00
5.70
5.40
−40 −25
25
50 75 100 125 150
Tj [°C]
Current consumption during operation vs. Input voltage (When ON / OFF pin is ON, no load)
ISS1 [μA]
7. 1
VOUT = 1.0 V
7. 2
160
120
120
Tj = −40°C
Tj = +25°C
80
40
0
7. 3
VOUT = 3.0 V
160
ISS1 [μA]
7.
0
1
2
3
4
5 6
VIN [V]
Tj = +25°C
40
Tj = +150°C
0
Tj = −40°C
80
7
8
9 10
8
9 10
0
Tj = +150°C
0
1
2
3
4
5 6
VIN [V]
7
8
9 10
VOUT = 6.0 V
160
Tj = +150°C
ISS1 [μA]
120
80
Tj = +25°C
40
0
Tj = −40°C
0
1
2
3
4
5 6
VIN [V]
7
23
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
S-19246xxxH Series
Rev.1.0_00
8.
Current consumption during operation vs. Junction temperature
8. 1
VOUT = 1.0 V
8. 2
VOUT = 3.0 V
VIN = 4.0 V
160
160
120
120
ISS1 [μA]
ISS1 [μA]
VIN = 2.5 V
80
40
80
40
0
−40 −25
0
25
0
−40 −25
50 75 100 125 150
Tj [°C]
0
25
50 75 100 125 150
Tj [°C]
VOUT = 6.0 V
8. 3
VIN = 7.0 V
160
ISS1 [μA]
120
80
40
0
−40 −25
9.
9. 1
0
25
50 75 100 125 150
Tj [°C]
Ripple rejection (Ta = +25°C)
9. 2
VOUT = 1.0 V
VIN = 3.0 V, CL = 2.2 μF
100
IOUT = 1 mA
IOUT = 30 mA
IOUT = 100 mA
80
60
IOUT = 1 mA
IOUT = 30 mA
IOUT = 100 mA
60
40
40
20
20
0
10
100
1k
10k
Frequency [Hz]
100k
1M
VOUT = 6.0 V
VIN = 7.0 V, CL = 2.2 μF
100
IOUT = 1 mA
IOUT = 30 mA
IOUT = 100 mA
80
60
40
20
0
10
24
VIN = 4.0 V, CL = 2.2 μF
100
80
0
9. 3
VOUT = 3.0 V
100
1k
10k
Frequency [Hz]
100k
1M
10
100
1k
10k
Frequency [Hz]
100k
1M
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.1.0_00
S-19246xxxH Series
Reference Data
Characteristics of input transient response (Ta = +25°C)
1. 1
VOUT = 1.0 V
1. 2
IOUT = 100 mA, CL = 2.2 μF, VIN = 2.5 V ↔ 3.5 V, tr = tf = 5.0 μs
1.15
4.0
3.15
2.0
VIN
0.0
1.05
1.00
IOUT = 100 mA, CL = 2.2 μF, VIN = 4.0 V ↔ 5.0 V, tr = tf = 5.0 μs
6.0
3.20
VIN [V]
VOUT [V]
VOUT [V]
1.10
−2.0
VOUT
−4.0
0.95
−
t [μs]
1. 3
VOUT = 3.0 V
3.10
4.0
VIN
2.0
3.05
3.00
0.0
−2.0
VOUT
2.95
−4.0
2.90
−
−6.0
VIN [V]
1.
t [μs]
VOUT = 6.0 V
IOUT = 100 mA, CL = 2.2 μF, VIN = 7.0 V ↔ 8.0 V, tr = tf = 5.0 μs
6.40
9.0
6.20
8.0
7.0
VIN
6.0
6.10
6.00
VIN [V]
VOUT [V]
6.30
5.0
VOUT
4.0
5.90
t [μs]
25
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
S-19246xxxH Series
Rev.1.0_00
Characteristics of load transient response (Ta = +25°C)
VOUT = 1.0 V
VIN = 2.5 V, CL = 2.2 μF, IOUT = 50 mA ↔ 100 mA
1.20
150
1.05
1.00
100
1.30
50
1.20
0
VOUT
−50
1.10
1.00
400
0.95
−100
0.90
−400
−150
0.80
−600
t [μs]
VOUT = 3.0 V
VIN = 4.0 V, CL = 2.2 μF, IOUT = 50 mA ↔ 100 mA
3.20
150
3.10
3.05
3.00
IOUT
VIN = 4.0 V, CL = 2.2 μF, IOUT = 100 mA ↔ 500 mA
3.40
600
100
3.30
50
3.20
IOUT [mA]
VOUT [V]
3.15
VOUT [V]
−200
0.90
2. 2
0
VOUT
−50
3.10
3.00
400
200
IOUT
0
VOUT
−200
2.95
−100
2.90
−400
2.90
−150
2.80
−600
t [μs]
2. 3
t [μs]
VOUT = 6.0 V
VIN = 7.0 V, CL = 2.2 μF, IOUT = 50 mA ↔ 100 mA
6.20
150
6.05
100
6.50
50
6.30
0
VOUT
VOUT [V]
6.10
IOUT
VIN = 7.0 V, CL = 2.2 μF, IOUT = 100 mA ↔ 500 mA
6.70
600
IOUT [mA]
6.15
VOUT [V]
0
VOUT
t [μs]
6.10
400
200
IOUT
VOUT
0
6.00
−50
5.95
−100
5.70
−400
5.90
−150
5.50
−600
t [μs]
26
200
IOUT
IOUT [mA]
VOUT [V]
1.10
IOUT
IOUT [mA]
VOUT [V]
1.15
VIN = 2.5 V, CL = 2.2 μF, IOUT = 100 mA ↔ 500 mA
1.40
600
IOUT [mA]
2. 1
−200
5.90
t [μs]
IOUT [mA]
2.
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.1.0_00
S-19246xxxH Series
3.
Load transient response characteristics dependent on capacitance (Ta = +25°C)
3. 1
IOUT = 1.0 mA → 1500 mA
VOUT = 3.0 V, VIN = 4.0 V, CIN = 2.2 μF
600
400
200
0
0
40
60
CL [μF]
80
3. 4
VOUT = 3.0 V, VIN = 4.0 V, CIN = 2.2 μF
600
400
200
0
0
20
40
60
CL [μF]
80
100
400
200
0
20
40
60
CL [μF]
80
100
IOUT = 2000 mA → 1.0 mA
VOUT = 3.0 V, VIN = 4.0 V, CIN = 2.2 μF
1000
Overshoot [mV]
800
VOUT = 3.0 V, VIN = 4.0 V, CIN = 2.2 μF
600
0
100
IOUT = 1.0 mA → 2000 mA
1000
Undershoot [mV]
20
IOUT = 1500 mA → 1.0 mA
800
Overshoot [mV]
Undershoot [mV]
800
3. 3
3. 2
800
600
400
200
0
0
20
40
60
CL [μF]
80
100
27
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
S-19246xxxH Series
Rev.1.0_00
Transient response characteristics of ON / OFF pin (Ta = +25°C)
VOUT [V]
4. 1
VOUT = 1.0 V
VIN = 2.5 V, CIN = CL = 2.2 μF,
CSS = 0.68 nF, IOUT = 2000 mA
5.00
3.0
4.00
2.0
8.00
4.0
3.00
1.0
6.00
2.0
2.00
1.00
0.0
VON / OFF
−1.0
0.00
−2.0
VOUT
−1.00
−200
0
200
400
600
VOUT = 3.0 V
VIN = 4.0 V, CIN = CL = 2.2 μF,
CSS = 0.68 nF, IOUT = 2000 mA
10.00
4. 2
800
−3.0
VOUT [V]
4.
4.00
2.00
0.0
VON / OFF
−2.0
0.00
VOUT
−2.00
−400
0
−4.0
400
t [μs]
VOUT [V]
4. 3
12.0
16.00
8.0
12.00
4.0
8.00
4.00
0.00
0.0
VON / OFF
−4.0
−8.0
VOUT
−4.00
−400
0
400
800
1200
1600
−12.0
t [μs]
5.
Soft-start time vs. Characteristics of operation ambient temperature
VIN = 2.5 V, VON / OFF = 0 V → 2.5 V (VOUT(S) < 1.5 V),
VIN = VOUT + 1.0 V, VON / OFF = 0 V → VOUT + 1.0 V (1.5 V ≤ VOUT(S)),
CIN = CL = 2.2 μF, CSS = 10 nF
10.0
tSS [ms]
8.0
VOUT = 1.0 V
6.0
4.0
2.0
0.0
−40 −25
6.
VOUT = 6.0 V
VOUT = 3.0 V
0
25
50 75 100 125 150
Ta [°C]
Soft-start time vs. Characteristics of soft-start capacitance (Ta = +25°C)
VIN = 2.5 V, VON / OFF = 0 V → 2.5 V (VOUT(S) < 1.5 V),
VIN = VOUT + 1.0 V, VON / OFF = 0 V → VOUT + 1.0 V (1.5 V ≤ VOUT(S)),
CIN = CL = 2.2 μF
100.0
10.0
VOUT = 1.0 V
VOUT = 3.0 V
1.0
VOUT = 6.0 V
0.1
0.1
28
1.0
800
t [μs]
VOUT = 6.0 V
VIN = 7.0 V, CIN = CL = 2.2 μF,
CSS = 0.68 nF, IOUT = 2000 mA
20.00
10.0
CSS [nF]
100.0
1000.0
6.0
1200
1600
−6.0
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.1.0_00
S-19246xxxH Series
7.
7. 1
Inrush current characteristics (Ta = +25°C)
VOUT = 1.0 V
VIN = 2.5 V, IOUT = 100 mA, CL = 2.2 μF, CSS = 1 nF
7. 2
VON / OFF
VON / OFF
VOUT
VOUT
IIN
IIN
VOUT = 3.0 V
VIN = 4.0 V, IOUT = 100 mA, CL = 2.2 μF, CSS = 1 nF
7. 3
VIN = 2.5 V, IOUT = 100 mA, CL = 2.2 μF, CSS = 10 nF
VIN = 4.0 V, IOUT = 100 mA, CL = 2.2 μF, CSS = 10 nF
VON / OFF
VON / OFF
VOUT
VOUT
IIN
IIN
VOUT = 6.0 V
VIN = 7.0 V, IOUT = 100 mA, CL = 2.2 μF, CSS = 1 nF
VIN = 7.0 V, IOUT = 100 mA, CL = 2.2 μF, CSS = 10 nF
VOUT
VOUT
IIN
IIN
29
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
S-19246xxxH Series
Rev.1.0_00
8.
Output capacitance vs. Characteristics of discharge time (Ta = +25°C)
VIN = 2.5 V, VON / OFF = 2.5 V → VSS (VOUT(S) < 1.5 V),
VIN = VOUT + 1.0 V, VON / OFF = VOUT + 1.0 V → VSS (1.5 V ≤ VOUT(S)),
IOUT = 1 mA, tf = 1 μs
30
25
VOUT(S) = 1.0 V
tDSC [ms]
20
VSS
15
VOUT(S) = 3.0 V
10
tDSC
VOUT
VOUT(S) = 6.0 V
5
0
1 μs
VON / OFF
0
20
40
60
80
CL [μF]
100
120
VOUT × 10%
VIN = 2.5 V, VON / OFF = 2.5 V → VSS (VOUT(S) < 1.5 V),
VIN = VOUT + 1.0 V, VON / OFF = VOUT + 1.0 V → VSS (1.5 V ≤ VOUT(S))
Figure 15 S-19246xxxH Series E / F type
(with discharge shunt function)
9.
Figure 16
Measurement Condition of Discharge Time
Example of equivalent series resistance vs. Output current characteristics (Ta = +25°C)
CIN = CL = 2.2 μF
100
VIN
RESR [Ω ]
VOUT
CIN
Stable
ON / OFF
0
1.0
S-19246xxxH
Series
SSC
VSS
2000
CSS
CL*1
RESR
IOUT [mA]
*1.
Figure 17
30
CL: TDK Corporation CGA6M2X8R1E225K (2.2 μF)
Figure 18
AUTOMOTIVE, 105°C OPERATION, 10 V INPUT, 2000 mA VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.1.0_00
S-19246xxxH Series
Power Dissipation
TO-252-5S(A)
Tj = +150°C max.
Power dissipation (PD) [W]
5
E
4
D
3 C
2
B
1 A
0
0
25
50
75
100
125
150
175
Ambient temperature (Ta) [°C]
Board
Power Dissipation (PD)
A
1.45 W
B
2.08 W
C
3.29 W
D
4.03 W
E
4.46 W
31
TO-252-5S Test Board
(1) Board A
IC Mount Area
Item
Size [mm]
Material
Number of copper foil layer
Copper foil layer [mm]
1
2
3
4
Thermal via
Specification
114.3 x 76.2 x t1.6
FR-4
2
Land pattern and wiring for testing: t0.070
74.2 x 74.2 x t0.070
-
(2) Board B
Item
Size [mm]
Material
Number of copper foil layer
Copper foil layer [mm]
1
2
3
4
Thermal via
Specification
114.3 x 76.2 x t1.6
FR-4
4
Land pattern and wiring for testing: t0.070
74.2 x 74.2 x t0.035
74.2 x 74.2 x t0.035
74.2 x 74.2 x t0.070
-
(3) Board C
Item
Size [mm]
Material
Number of copper foil layer
Copper foil layer [mm]
Thermal via
1
2
3
4
Specification
114.3 x 76.2 x t1.6
FR-4
4
Land pattern and wiring for testing: t0.070
74.2 x 74.2 x t0.035
74.2 x 74.2 x t0.035
74.2 x 74.2 x t0.070
Number: 4
Diameter: 0.3 mm
No. TO252-5S-A-Board-SD-1.0
enlarged view
ABLIC Inc.
TO-252-5S Test Board
(4) Board D
IC Mount Area
Item
Size [mm]
Material
Number of copper foil layer
Specification
114.3 x 76.2 x t1.6
FR-4
4
Thermal via
2
Pattern for heat radiation: 2000mm t0.070
74.2 x 74.2 x t0.035
74.2 x 74.2 x t0.035
74.2 x 74.2 x t0.070
-
Item
Size [mm]
Material
Number of copper foil layer
Specification
114.3 x 76.2 x t1.6
FR-4
4
Copper foil layer [mm]
1
2
3
4
(5) Board E
Copper foil layer [mm]
Thermal via
1
2
3
4
2
Pattern for heat radiation: 2000mm t0.070
74.2 x 74.2 x t0.035
74.2 x 74.2 x t0.035
74.2 x 74.2 x t0.070
Number: 4
Diameter: 0.3 mm
enlarged view
No. TO252-5S-A-Board-SD-1.0
ABLIC Inc.
6.5±0.2
5.8
1.2±0.1
(5.2)
0.80
0.6±0.1
0.22±0.05
1.27
No. VA005-A-P-SD-2.0
TITLE
TO-252-5S-A-PKG Dimensions
VA005-A-P-SD-2.0
No.
ANGLE
UNIT
mm
ABLIC Inc.
4.0±0.1(10 pitches:40.0±0.2)
2.0±0.05
+0.1
ø1.5 -0.0
0.2±0.05
ø1.7±0.1
8.0±0.1
1.5±0.1
6.9±0.1
5
1
Feed direction
No. VA005-A-C-SD-1.0
TITLE
TO-252-5S-A-C a r r i e r T a p e
No.
VA005-A-C-SD-1.0
ANGLE
UNIT
mm
ABLIC Inc.
60°
13.4±1.0
Enlarged drawing in the central part
ø21±0.8
17.4±1.0
2±0.5
ø13±0.2
No. VA005-A-R-SD-1.0
TO-252-5S-A-Reel
TITLE
VA005-A-R-SD-1.0
No.
ANGLE
UNIT
QTY.
mm
ABLIC Inc.
4,000
6.0
0.8
2.54
1.27
No. VA005-A-L-SD-1.0
TITLE
TO-252-5S-A
-Land Recommendation
No.
VA005-A-L-SD-1.0
ANGLE
UNIT
mm
ABLIC Inc.
Disclaimers (Handling Precautions)
1.
All the information described herein (product data, specifications, figures, tables, programs, algorithms and
application circuit examples, etc.) is current as of publishing date of this document and is subject to change without
notice.
2.
The circuit examples and the usages described herein are for reference only, and do not guarantee the success of
any specific mass-production design.
ABLIC Inc. is not liable for any losses, damages, claims or demands caused by the reasons other than the products
described herein (hereinafter "the products") or infringement of third-party intellectual property right and any other
right due to the use of the information described herein.
3.
ABLIC Inc. is not liable for any losses, damages, claims or demands caused by the incorrect information described
herein.
4.
Be careful to use the products within their ranges described herein. Pay special attention for use to the absolute
maximum ratings, operation voltage range and electrical characteristics, etc.
ABLIC Inc. is not liable for any losses, damages, claims or demands caused by failures and / or accidents, etc. due to
the use of the products outside their specified ranges.
5.
Before using the products, confirm their applications, and the laws and regulations of the region or country where they
are used and verify suitability, safety and other factors for the intended use.
6.
When exporting the products, comply with the Foreign Exchange and Foreign Trade Act and all other export-related
laws, and follow the required procedures.
7.
The products are strictly prohibited from using, providing or exporting for the purposes of the development of
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caused by any provision or export to the person or entity who intends to develop, manufacture, use or store nuclear,
biological or chemical weapons or missiles, or use any other military purposes.
8.
The products are not designed to be used as part of any device or equipment that may affect the human body, human
life, or assets (such as medical equipment, disaster prevention systems, security systems, combustion control
systems, infrastructure control systems, vehicle equipment, traffic systems, in-vehicle equipment, aviation equipment,
aerospace equipment, and nuclear-related equipment), excluding when specified for in-vehicle use or other uses by
ABLIC, Inc. Do not apply the products to the above listed devices and equipments.
ABLIC Inc. is not liable for any losses, damages, claims or demands caused by unauthorized or unspecified use of
the products.
9.
In general, semiconductor products may fail or malfunction with some probability. The user of the products should
therefore take responsibility to give thorough consideration to safety design including redundancy, fire spread
prevention measures, and malfunction prevention to prevent accidents causing injury or death, fires and social
damage, etc. that may ensue from the products' failure or malfunction.
The entire system in which the products are used must be sufficiently evaluated and judged whether the products are
allowed to apply for the system on customer's own responsibility.
10. The products are not designed to be radiation-proof. The necessary radiation measures should be taken in the
product design by the customer depending on the intended use.
11. The products do not affect human health under normal use. However, they contain chemical substances and heavy
metals and should therefore not be put in the mouth. The fracture surfaces of wafers and chips may be sharp. Be
careful when handling these with the bare hands to prevent injuries, etc.
12. When disposing of the products, comply with the laws and ordinances of the country or region where they are used.
13. The information described herein contains copyright information and know-how of ABLIC Inc. The information
described herein does not convey any license under any intellectual property rights or any other rights belonging to
ABLIC Inc. or a third party. Reproduction or copying of the information from this document or any part of this
document described herein for the purpose of disclosing it to a third-party is strictly prohibited without the express
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representative.
15. This Disclaimers have been delivered in a text using the Japanese language, which text, despite any translations into
the English language and the Chinese language, shall be controlling.
2.4-2019.07
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