S-818A38AUC-BGS-T2 datasheet(4/23 Pages) SII

Part #	S-818A38AUC-BGS-T2

Description	LOW DROPOUT CMOS VOLTAGE REGULATOR

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Manufacturer	SII [Seiko Instruments Inc]

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LOW DROPOUT CMOS VOLTAGE REGULATOR

Rev.1.2

S-818 Series

4

Seiko Instruments Inc.

Electrical Characteristics

S-818AXXAMC/UC, S-818BXXAMC/UC

Table 5 Electrical Characteristics

(Ta=25

°C unless otherwise specified)

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

Test

circuit

s

Output voltage

*1)

VOUT(E)

VIN=VOUT(S)+1V,IOUT=30mA

VOUT(S)

×0.98

VOUT(S) VOUT(S)

×1.02

V1

Output current

*2)

IOUT

VOUT(S)+1V

2.0V

≤VOUT(S) ≤2.4V

100 *5)

−−

mA

3

≤ VIN≤10V

2.5V

≤VOUT(S) ≤2.9V

150 *5)

−−

mA

3

3.0V

≤VOUT(S) ≤3.9V

200 *5)

−−

mA

3

4.0V

≤VOUT(S) ≤4.9V

250 *5)

−−

mA

3

5.0V

≤VOUT(S) ≤6.0V

300 *5)

−−

mA

3

Dropout voltage

*3)

Vdrop

IOUT =

2.0V

≤VOUT(S) ≤2.4V

−

0.51

0.87

V

1

60mA

2.5V

≤VOUT(S) ≤2.9V

−

0.38

0.61

V

1

3.0V

≤VOUT(S) ≤3.4V

−

0.30

0.44

V

1

3.5V

≤VOUT(S) ≤3.9V

−

0.24

0.33

V

1

4.0V

≤VOUT(S) ≤4.4V

−

0.20

0.26

V

1

4.5V

≤VOUT(S) ≤4.9V

−

0.18

0.22

V

1

5.0V

≤VOUT(S) ≤5.4V

−

0.17

0.21

V

1

5.5V

≤VOUT(S) ≤6.0V

−

0.17

0.20

V

1

Line regulation 1

∆VOUT1 1

∆VIN • VOUT

VOUT(S) + 0.5 V

≤ VIN ≤ 10 V,

IOUT = 30mA



0.05

0.2

%/V

1

Line regulation 2

∆VOUT2 1

∆VIN • VOUT

VOUT(S) + 0.5 V

≤ VIN ≤ 10 V,

IOUT = 10

µA



0.05

0.2

%/V

1

Load regulation

∆VOUT3VIN = VOUT(S) + 1 V,

10

µA ≤ IOUT ≤ 80mA



30

50

mV

1

Output voltage temperature

coefficient

*4)

∆VOUT 1

∆Ta • VOUT

VIN = VOUT(S) + 1 V, IOUT = 30mA

-40

°C ≤ Ta ≤ 85°C

±100



ppm

/

°C

1

Current consumption during

operation

ISS1VIN = VOUT(S) + 1 V,

ON/OFF pin = ON, no load



30

40

µA2

Current consumption when

power off

ISS2VIN = VOUT(S) + 1 V,

ON/OFF pin = OFF, no load



0.1

0.5

µA2

Input voltage

VIN



10

V

1

Power-off pin input voltage "H"

VSH

VIN = VOUT(S) + 1 V, RL = 1k

Ω,

Judged by VOUT output level.

1.5



V4

Power-off pin input voltage "L"

VSL

VIN = VOUT(S) + 1 V, RL = 1k

Ω,

Judged by VOUT output level.



0.3

V

4

Power-off pin input current "H"

ISH

VIN = VOUT(S) + 1 V,

ON/OFF = 7 V



0.1

µA4

Power-off pin input current "L"

ISL

VIN = VOUT(S) + 1 V,

ON/OFF = 0 V



-0.1

µA4

Ripple rejection

RR

VIN = VOUT(S) + 1 V, f = 100Hz,

∆Vrip = 0.5 V p-p, IOUT=30mA



45



dB

5

*1) VOUT(S)=Specified output voltage

VOUT(E)=Effective output voltage, i.e., the output voltage at fixet IOUT(=30 mA) and input VOUT(S)+1.0 V.

*2) Output current when the output voltage goes below 95% of VOUT(E) after gradually increasing output current.

*3) Vdrop = VIN1-(VOUT(E) × 0.98)

VIN1 = Input voltage when output voltage falls 98% of VOUT(E) after gradually decreasing input voltage.

*4) Output voltage shift by temperature [mV/°C] is calculated using the following equation.

*5) Peak output current can exceed the minimum value.

∆VOUT

[ppm/

°C] ÷1000

[mV/

°C] = VOUT(S)[V] ×

∆Ta

∆VOUT

∆Ta • VOUT

Specified output voltage

Output voltage temperature coefficient

Output voltage shift by temperature

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