HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR

S-L2980 Series

Seiko Instruments Inc.

6

Electrical Characteristics

Table 4

(Ta=25

°C unless otherwise specified)

Item

Symbol

Condition

Min.

Typ.

Max.

Unit

Test

circuit

Output voltage

*1

× 0.98

× 1.02

V

1

Output current

*2

150

*5

⎯

⎯

mA

3

Dropout voltage

*3

1.5 V

≤V

⎯

0.17

0.33

V

1

1.8 V

≤V

⎯

0.16

0.29

V

1

2.0 V

≤V

⎯

0.15

0.26

V

1

2.5 V

≤V

⎯

0.13

0.20

V

1

3.0 V

≤V

⎯

0.12

0.15

V

1

3.3 V

≤V

⎯

0.11

0.14

V

1

Line regulation

OUT

IN

1

OUT

V

V

Δ

V

Δ

•

⎯

0.05

0.2

%/V

1

Load regulation

ΔV

OUT2

⎯

12

40

mV

1

Output voltage

temperature coefficient

*4

OUT

OUT

V

Ta

Δ

V

Δ

•

–40

°C ≤Ta ≤85°C

⎯

±100

⎯

ppm/

°C

1

Current consumption

during operation

No load

⎯

90

140

μA

2

Current consumption

when shutdown

No load

⎯

0.1

1.0

μA

2

Input voltage

⎯

2.0

⎯

10

V

⎯

ON/OFF pin

input voltage “H”

1.5

⎯

⎯

V

4

ON/OFF pin

input voltage “L”

⎯

⎯

0.3

V

4

ON/OFF pin

input current “H”

–0.1

⎯

0.1

μA

4

ON/OFF pin

input current “L”

–0.1

⎯

0.1

μA

4

Ripple rejection

RR

1.5 V

≤V

⎯

70

⎯

dB

5

3.4 V

≤V

⎯

65

⎯

dB

5

f = 1.0 kHz,

ΔV

5.1 V

≤V

⎯

60

⎯

dB

5

*4. Temperature change ratio in the output voltage [mV/°C] is calculated by using the following equation.

[]

[ ]

C

ppm/

T

V

ΔTa

ΔV

V

V

C

mV/

ΔTa

ΔV

OU

OUT

OUT(S)

OUT

÷

°

•

×

=

°

3

*

2

*

*1

*1. Temperature change ratio of the output voltage

*2. Specified output voltage

*3. Output voltage temperature coefficient

*5. The output current can be supplied at least to this value.

Due to restrictions on the package power dissipation, this value may not be satisfied.

Attention should be paid to the power dissipation of the package when the load is large.

This specification is guaranteed by design.