S19311 datasheet(21/39 Pages) SII

21 / 39 page

FOR AUTOMOTIVE 125°C OPERATION HIGH-WITHSTAND VOLTAGE CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.1.0_01

S-19311 Series

Seiko Instruments Inc.



Characteristics (Typical Data)

1. Regulator block

1. 1 Output voltage vs. Output current (When load current increases) (Ta =

+25°C)

1. 1. 1 VOUT = 3.3 V

1. 1. 2 VOUT = 5.0 V

4.0

0.0

600

IOUT [mA]

3.0

2.0

1.0

500

400

300

200

100

VIN = 3.8 V

VIN = 4.3 V

VIN = 13.5 V

6.0

0.0

600

IOUT [mA]

500

400

300

200

100

5.0

4.0

3.0

2.0

1.0

VIN = 5.5 V

VIN = 6.0 V

VIN = 13.5 V

1. 2 Output voltage vs. Input voltage (Ta =

+25°C)

1. 2. 1 VOUT = 3.3 V

1. 2. 2 VOUT = 5.0 V

4.0

0.0

018

VIN [V]

3.0

2.0

1.0

IOUT = 1 mA

IOUT = 30 mA

IOUT = 10 mA

IOUT = 100 mA

6.0

0.0

018

VIN [V]

5.0

4.0

3.0

2.0

1.0

IOUT = 1 mA

IOUT = 30 mA

IOUT = 10 mA

IOUT = 100 mA

1. 3 Dropout voltage vs. Output current

1. 3. 1 VOUT = 3.3 V

1. 3. 2 VOUT = 5.0 V

200

IOUT [mA]

150

100

150

100

Tj =

+125°C

Tj =

+150°C

Tj =

+25°C

Tj =

−40°C

200

IOUT [mA]

150

100

150

100

Tj =

+125°C

Tj =

+150°C

Tj =

+25°C

Tj =

−40°C

1. 4 Dropout voltage vs. Junction temperature

1. 4. 1 VOUT = 3.3 V

1. 4. 2 VOUT = 5.0 V

−25 0

150

125

100

−40

Tj [

°C]

100

IOUT = 30 mA

IOUT = 100 mA

−25 0

150

125

100

−40

Tj [

°C]

100

IOUT = 30 mA

IOUT = 100 mA

S19311 Datasheet(PDF) 21 Page - Seiko Instruments Inc

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