S-19254xxxH Datasheet PDF - Seiko

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S-19254xxxH
Seiko

Part Number S-19254xxxH
Description CMOS VOLTAGE REGULATOR
Page 30 Pages


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S-19254xxxH Series
www.sii-ic.com
FOR AUTOMOTIVE 105°C OPERATION LOW DROPOUT HIGH OUTPUT CURRENT
CMOS VOLTAGE REGULATOR WITH SOFT-START FUNCTION
© SII Semiconductor Corporation, 2016
Rev.1.0_00
The S-19254xxxH 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-19254xxxH 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:
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:
Built-in discharge shunt circuit:
Operation temperature range:
Lead-free (Sn 100%), halogen-free
AEC-Q100 in process*2
1.0 V to 5.5 V, selectable in 0.05 V step
2.5 V to 6.5 V
±3.0% (Tj = 40°C to +105°C)
0.38 V typ. (2.6 V output product, at IOUT = 1000 mA)
During operation: 120 μA typ., 150 μA max. (Tj = 40°C to +105°C)
During power-off: 0.1 μA typ., 4.5 μA max. (Tj = 40°C to +105°C)
Possible to output 1000 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.
Adjustable type: tSS = 6.0 ms typ. (CSS = 10 nF)
Soft-start time can be changed by the capacitor (CSS).
Ensures long battery life.
Discharges the electric charge of the output capacitor during power-off.
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 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 (accessory, car navigation system, car audio system, etc.)
Package
HSOP-8A
1



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FOR AUTOMOTIVE 105°C OPERATION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR WITH SOFT-START FUNCTION
S-19254xxxH Series
Rev.1.0_00
Block Diagram
ON / OFF logic
Pull-down resistor
: Active "H"
: Available
VIN
Discharge shunt function
Soft-start time
: Available
: Changeable by capacitor (CSS)
*1
VOUT
ON / OFF
SSC
VSS
*1. Parasitic diode
Overcurrent protection circuit
Thermal shutdown circuit
ON / OFF
circuit
+
Reference
voltage circuit
Soft-start
circuit
*1
Figure 1
*1
2



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FOR AUTOMOTIVE 105°C OPERATION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.1.0_00
S-19254xxxH Series
AEC-Q100 in Process
Contact our sales office for details of AEC-Q100 reliability specification.
Product Name Structure
Users can select the output voltage for the S-19254xxxH Series. Refer to "1. Product name" regarding the contents
of product name, "2. Package" regarding the package drawings and "3. Product name list" for details of product
names.
1. Product name
S-19254 x xx H - E8T1 U
Environmental code
U: Lead-free (Sn 100%), halogen-free
Package abbreviation and IC packing specifications*1
E8T1: HSOP-8A, Tape
Operation temperature
H: Ta = 40°C to +105°C
Output voltage*2
10 to 55
(e.g., when the output voltage is 1.0 V, it is expressed as 10.)
Product type
E
*1. Refer to the tape drawing.
*2. Contact our sales office when the product which has 0.05 V step is necessary.
2. Package
Package Name
HSOP-8A
Table 1
Dimension
FH008-A-P-SD
Package Drawing Codes
Tape
FH008-A-C-SD
Reel
FH008-A-R-SD
Land
FH008-A-L-SD
4. Product name list
Remark
Table 2
Output Voltage
HSOP-8A
1.2 V ± 3.0%
1.8 V ± 3.0%
S-19254E12H-E8T1U
S-19254E18H-E8T1U
3.3 V ± 3.0%
5.0 V ± 3.0%
S-19254E33H-E8T1U
S-19254E50H-E8T1U
Please contact our sales office for products with specifications other than the above output voltage.
3



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FOR AUTOMOTIVE 105°C OPERATION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR WITH SOFT-START FUNCTION
S-19254xxxH Series
Rev.1.0_00
Pin Configuration
1. 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
ON / OFF
SSC*3
NC*2
NC*2
VIN
Table 3
Description
Output voltage pin
No connection
GND pin
ON / OFF pin
Soft-start pin
No connection
No connection
Input voltage pin
Figure 2
*1. Connect the heat sink of backside at shadowed area to the board, and set electric potential open or 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.
*3. 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.
4



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