S-19244xxxH Series
www.sii-ic.com
FOR AUTOMOTIVE 105°C OPERATION LOW DROPOUT HIGH OUTPUT CURRENT
CMOS VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.3.0
_00
© SII Semiconductor Corporation, 2016
The S-19244xxxH 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. In addition to the type in which output voltage is set inside the IC, the type for which output voltage
can be set via an external resistor is added to a lineup. Also, the S-19244xxxH 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.
Caution This product can be used in vehicle equipment and in-vehicle equipment. Before using the product in
the purpose, contact to SII Semiconductor Corporation is indispensable.
Features
•
Output voltage (internally set):
•
Output voltage (externally set):
•
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:
1.0 V to 6.0 V, selectable in 0.05 V step
1.0 V to 9.0 V, settable via external resistor
(HSOP-8A, HSOP-6 and HSNT-8(2030) only)
2.5 V to 10.0 V
±2.3%
(T
j
=
−40°C
to
+105°C)
0.38 V typ. (2.6 V output product, at I
OUT
= 1000 mA)
During operation: 120
μA
typ., 150
μA
max. (T
j
=
−40°C
to
+150°C)
During power-off: 0.1
μA
typ., 4.5
μA
max. (T
j
=
−40°C
to
+105°C)
Possible to output 1000 mA (at V
IN
≥
V
OUT(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.
Adjustable type: E / F / G / H type, t
SS
= 6.0 ms typ. (C
SS
= 10 nF)
Soft-start time can be changed by the capacitor (C
SS
).
Fixed type: A / B / C / D type: Fixed to t
SS
= 1.0 ms typ.
Ensures long battery life.
Discharges the electric charge of the output capacitor during power-off.
Ta =
−40°C
to
+105°C
•
Built-in ON / OFF circuit:
•
Built-in discharge shunt circuit:
•
Operation temperature range:
•
Lead-free (Sn 100%), halogen-free
*2
•
AEC-Q100 in process
*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 for electrical application for vehicle interior
•
Constant-voltage power supply for home electric appliance
•
For automotive use (car body, headlight, ITS,
accessory, car navigation system,
car audio system, etc.)
Packages
•
TO-252-5S(A)
•
HSOP-8A
•
HSOP-6
•
HSNT-8(2030)
1
FOR AUTOMOTIVE 105°C OPERATION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.3.0
_00
S-19244xxxH Series
Block Diagrams
1. Types in which output voltage is internally set
1. 1
S-19244xxxH Series A / B / C / D type (HSOP-8A, HSOP-6, HSNT-8(2030))
*1
VIN
VOUT
Overcurrent protection circuit
Thermal shutdown circuit
ON / OFF
circuit
+
−
*2
ON / OFF
*
3
Reference
voltage circuit
Soft-start
circuit
*1
VSS
Product
Type
A
B
C
D
ON / OFF Logic
Active "H"
Active "H"
Active "H"
Active "H"
Soft-start Time
Fixed to t
SS
= 1.0 ms typ.
Fixed to t
SS
= 1.0 ms typ.
Fixed to t
SS
= 1.0 ms typ.
Fixed to t
SS
= 1.0 ms typ.
Discharge Shunt
*2
Function
Available
Available
Unavailable
Unavailable
Pull-down Resistor
Available
Unavailable
Available
Unavailable
*3
*1.
Parasitic diode
*2.
A / B type (With discharge shunt function): ON, C / D type (Without discharge shunt function): OFF
*3.
A / C type (With pull-down resistor): ON, B / D type (Without pull-down resistor): OFF
Figure 1
2
FOR AUTOMOTIVE 105°C OPERATION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.3.0
_00
S-19244xxxH Series
1. 2
S-19244xxxH Series E / F / G / H type (TO-252-5S(A), HSOP-8A, HSOP-6, HSNT-8(2030))
*1
VIN
VOUT
Overcurrent protection circuit
Thermal shutdown circuit
ON / OFF
circuit
+
−
*2
ON / OFF
*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 (C
SS
)
Changeable by capacitor (C
SS
)
Changeable by capacitor (C
SS
)
Changeable by capacitor (C
SS
)
Discharge Shunt
*2
Function
Available
Available
Unavailable
Unavailable
Pull-down Resistor
Available
Unavailable
Available
Unavailable
*3
*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 2
3
FOR AUTOMOTIVE 105°C OPERATION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.3.0
_00
S-19244xxxH Series
2
.
Types in which output voltage is externally set
2. 1
S-19244xxxH Series A / B / C / D type (HSOP-6)
*1
VIN
VOUT
Overcurrent protection circuit
VADJ
Thermal shutdown circuit
ON / OFF
circuit
+
−
*2
ON / OFF
*3
Reference
voltage circuit
Soft-start
circuit
*1
VSS
Product
Type
A
B
C
D
ON / OFF Logic
Active "H"
Active "H"
Active "H"
Active "H"
Soft-start Time
Fixed to t
SS
= 1.0 ms typ.
Fixed to t
SS
= 1.0 ms typ.
Fixed to t
SS
= 1.0 ms typ.
Fixed to t
SS
= 1.0 ms typ.
Discharge Shunt
*2
Function
Available
Available
Unavailable
Unavailable
Pull-down Resistor
Available
Unavailable
Available
Unavailable
*3
*1.
Parasitic diode
*2.
A / B type (With discharge shunt function): ON, C / D type (Without discharge shunt function): OFF
*3.
A / C type (With pull-down resistor): ON, B / D type (Without pull-down resistor): OFF
Figure 3
4
FOR AUTOMOTIVE 105°C OPERATION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.3.0
_00
S-19244xxxH Series
2. 2
S-19244xxxH Series E / F / G / H type (HSOP-8A, HSNT-8(2030))
*1
VIN
VOUT
Overcurrent protection circuit
VADJ
Thermal shutdown circuit
ON / OFF
circuit
+
−
*2
ON / OFF
*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 (C
SS
)
Changeable by capacitor (C
SS
)
Changeable by capacitor (C
SS
)
Changeable by capacitor (C
SS
)
Discharge Shunt
*2
Function
Available
Available
Unavailable
Unavailable
Pull-down Resistor
Available
Unavailable
Available
Unavailable
*3
*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 4
5
