S1131 datasheet(8/30 Pages) SII

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HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR

S-1131 Series

Rev.4.1_00

Seiko Instruments Inc.

Electrical Characteristics

Table 6

(Ta = 25

°C unless otherwise specified)

Item

Symbol

Conditions

Min.

Typ.

Max.

Unit

Test

Circuit

VOUT(E)1

VIN = VOUT(S) + 1.0 V, IOUT = 30 mA

VOUT(S)

× 0.99

VOUT(S)

× 1.01

Output voltage

VOUT(E)2

VIN = VOUT(S) + 1.0 V, IOUT = 80 mA

VOUT(S)

× 0.98

VOUT(S)

× 1.02

Output current

IOUT

VIN ≥ VOUT(S) + 1.0 V

300

⎯

VOUT(S) = 1.5 V

⎯

1.00

1.05

VOUT(S) = 1.6 V

⎯

0.90

0.95

VOUT(S) = 1.7 V

⎯

0.80

0.85

VOUT(S) = 1.8 V

⎯

0.70

0.75

VOUT(S) = 1.9 V

⎯

0.60

0.65

VOUT(S) = 2.0 V

⎯

0.50

0.60

VOUT(S) = 2.1 V

⎯

0.40

0.55

2.2 V

≤ V

OUT(S) ≤ 2.5 V

⎯

0.30

0.49

2.6 V

≤ V

OUT(S) ≤ 3.3 V

⎯

0.25

0.34

Dropout voltage

Vdrop

IOUT = 100 mA

3.4 V

≤ V

OUT(S) ≤ 5.5 V

⎯

0.20

0.28

Line regulation

OUT

OUT1

•

VOUT(S) + 0.5 V ≤ VIN ≤ 6.5 V,

IOUT = 80 mA

⎯

0.05

0.2

%/V

Load regulation

ΔV

OUT2

VIN = VOUT(S) + 1.0 V,

1.0 mA

≤ I

OUT ≤ 80 mA

⎯

Output voltage

temperature coefficient

OUT

•

VIN = VOUT(S) + 1.0 V, IOUT = 10 mA,

−40°C ≤ Ta ≤ 85°C

⎯

±100

⎯

ppm

°C

Current consumption

during operation

ISS1

VIN = VOUT(S) + 1.0 V, ON/OFF pin = ON,

no load

⎯

μA

Input voltage

VIN

⎯

2.0

⎯

6.5

⎯

Ripple rejection

VIN = VOUT(S) + 1.0 V, f = 1.0 kHz,

ΔV

rip = 0.5 Vrms, IOUT = 80 mA

⎯

Short-circuit current

Ishort

VIN = VOUT(S) + 1.0 V, ON/OFF pin = ON,

VOUT = 0 V

⎯

450

⎯

Current consumption

during power-off

ISS2

VIN = VOUT(S) + 1.0 V, ON/OFF pin = OFF,

no load

⎯

0.1

1.0

μA

ON/OFF pin

input voltage “H”

VSH

VIN = VOUT(S) + 1.0 V, RL = 1.0 kΩ

1.5

⎯

ON/OFF pin

input voltage “L”

VSL

VIN = VOUT(S) + 1.0 V, RL = 1.0 kΩ

⎯

0.3

ON/OFF pin

input current “H”

ISH

VIN = 6.5 V, VON/OFF = 6.5 V

−0.1

⎯

0.1

μA

ON/OFF pin

input current “L”

ISL

VIN = 6.5 V, VON/OFF = 0 V

−0.1

⎯

0.1

μA

*1. V

OUT(S):

Set output voltage

VOUT(E)1: Actual output voltage

Output voltage when fixing IOUT(= 30 mA) and inputting VOUT(S) + 1.0 V

VOUT(E)2: Actual output voltage

Output voltage when fixing IOUT(= 80 mA) and inputting VOUT(S) + 1.0 V

*2. The output current at which the output voltage becomes 95% of V

OUT(E)1 after gradually increasing the output current.

*3. V

drop = VIN1 − (VOUT3 × 0.98)

VOUT3 is the output voltage when VIN = VOUT(S) + 1.0 V and IOUT = 100 mA.

VIN1 is the input voltage at which the output voltage becomes 98% of VOUT3 after gradually decreasing the input voltage.

*4. A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.

ΔV

OUT

ΔTa []

mV/°C

*1 = V

OUT(S)

[]

*2 ×

ΔV

OUT

ΔTa • V

OUT

[]

ppm/°C

*3 ÷ 1000

*1. Change in temperature of the output voltage

*2. Set output voltage

*3. Output voltage temperature coefficient

*5. The output current can be at least 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 output current is large.

This specification is guaranteed by design.

S1131 Datasheet(PDF) 8 Page - Seiko Instruments Inc

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