S818 datasheet(16/23 Pages) SII

Part #	S818

Description	LOW DROPOUT CMOS VOLTAGE REGULATOR

PDF	23 Pages

Scroll/Zoom	100%

Manufacturer	SII [Seiko Instruments Inc]

Direct Link	http://www.sii.co.jp

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16 / 23 page

LOW DROPOUT CMOS VOLTAGE REGULATOR

Rev.1.2

S-818 Series

Seiko Instruments Inc.

(3) Power fluctuation

VIN=4

→10V IOUT=30mA

TIME(50usec/div)

10V

CL=4.7

µF

CL=2

µF

VIN

VOUT

TIME(50usec/div)

10V

CL=4.7

µF

CL=2

µF

VIN

VOUT

VIN=10

→4V IOUT=30mA

Load dependence of overshoot

Output capacitor (CL) dependence of overshoot

0.2

0.4

0.6

1.E-05

1.E-04

1.E-03

1.E-02

1.E-01

1.E+00

IOUT(A)

VIN=VOUT(S)+1V

→VOUT(S)+2V,CL=2µF

VOUT=2V

0.01

0.02

0.03

0.04

0.05

100

CL(uF)

VIN=VOUT(S)+1V

→VOUT(S)+2V, IOUT=30mA

VOUT=2V

VDD dependence of overshoot

Temperature dependence of overshoot

0.2

0.4

0.6

024

VDD(V)

IN=VOUT(S)+1V

→VDD, IOUT=30mA,CL=2µF

VOUT=2V

0.01

0.02

0.03

0.04

0.05

0.06

-50

100

°C

VIN=VOUT(S)+1V

→VOUT(S)+2V, IOUT=30mA,CL=2

µF

VOUT=2V

S818 Datasheet(PDF) 16 Page - Seiko Instruments Inc

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