HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR

S-1112/1122 Series

Seiko Instruments Inc.

17

Characteristics (Typical Data)

Remark The following, which describes the S-1112 Series as the typical product, shows typical data common

to the S-1122 Series.

(1) Output Voltage vs. Output current (when load current increases)

S-1112B15 (Ta

= 25°C)

S-1112B30 (Ta

= 25°C)

0

100

200

300

400

500

600

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0

= 1.8 V

2.5 V

6.5 V

200

300

400

500

100

0

600

= 3.3 V

4.0 V

6.5 V

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

S-1112B50 (Ta

= 25°C)

200

300

400

100

0

= 5.3 V

6.0 V

6.5 V

500

6

5

4

3

2

1

0

600

Remark In determining the output current, attention

should be paid to the following.

1)

The minimum output current value

and footnote *5 in the electrical

characteristics

2)

The package power dissipation

(2) Output voltage vs. Input voltage

S-1112B15 (Ta

= 25°C)

S-1112B30 (Ta

= 25°C)

1.6

1.5

1.4

1.3

1.2

1.1

1.0

= 1 mA

30 mA

50 mA

3.5

3.0

2.5

2.0

1.5

1.0

3.1

3.0

2.9

2.8

2.7

2.6

2.5

= 1 mA

30 mA

50 mA

5.0

4.5

4.0

3.5

3.0

2.5

S-1112B50 (Ta

= 25°C)

= 1 mA

30 mA

50 mA

5.5

5.0

4.5

4.0

3.5

3.0

2.5

7.0

6.0

5.0

4.0

3.0

2.0