S1721 datasheet(25/42 Pages) SII

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SUPER-SMALL PACKAGE 2-CIRCUIT HIGH RIPPLE-REJECTION LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR

Rev.2.0_00

S-1721 Series

Seiko Instruments Inc.

Characteristics (Typical Data) (Per Circuit)

(1) Output Voltage vs. Output Current (When Load Current Increases) (Ta = 25°C)

VOUT = 1.2 V

VOUT = 3.0 V

100

200

400

1.2

0.8

0.4

IOUT [mA]

1.6

300

1.4

1.0

0.6

0.2

VIN = 1.5 V

1.7 V

2.2 V

3.2 V

6.5 V

3.5

3.0

2.5

2.0

1.5

1.0

0.5

IOUT [mA]

100

200

400

300

VIN = 3.3 V

3.5 V

4.0 V

5.0 V

6.5 V

VOUT = 5.0 V

100

200

400

IOUT [mA]

300

VIN = 5.3 V

5.5 V

6.0 V

6.5 V

Remark

In determining the output current, attention should

be paid to the following.

1. The minimum output current value and

footnote *5 in Table 10 in the “

Electrical

Characteristics”

2. The package power dissipation

(2) Output Voltage vs. Input Voltage (Ta = 25°C)

VOUT = 1.2 V

VOUT = 3.0 V

1.0

1.5

2.0

2.5

3.0

1.30

1.20

1.15

1.05

1.00

VIN [V]

3.5

IOUT = 1 mA

IOUT = 50 mA

IOUT = 30 mA

1.10

1.25

2.5

3.0

3.5

4.0

4.5

3.1

3.0

2.9

2.8

2.7

2.6

2.5

VIN [V]

5.0

IOUT = 1 mA

IOUT = 50 mA

IOUT = 30 mA

VOUT = 5.0 V

4.5

5.0

5.5

6.0

5.2

5.1

5.0

4.8

4.7

4.6

4.5

VIN [V]

6.5

4.9

IOUT = 1 mA

IOUT = 50 mA

IOUT = 30 mA

S1721 Datasheet(PDF) 25 Page - Seiko Instruments Inc

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