LT3080-1 datasheet(9/20 Pages) LINER

Part #	LT3080-1

Description	1.5A, Low Noise, Negative Linear Regulator

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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9 / 20 page

LT3015

9

3015f

TYPICAL PERFORMANCE CHARACTERISTICS

LT3015 Transient Response,

COUT = 47μF

LT3015 Transient Response,

CFF = 0, COUT = 10μF

LT3015 Transient Response,

CFF = 10nF, COUT = 10μF

LT3015 Transient Response,

CFF = 10nF, COUT = 47μF

Start-Up Time vs CFF

LT3015 Transient Response,

COUT = 10μF

TA = 25°C, unless otherwise noted.

FEEDFORWARD CAPACITOR, CFF (F)

100p

1n

10n

0.001

0.01

0.1

1.0

10

100

100n

3015 G38

IL = –1.5A

IFB-DIVIDER = 100μA

TJ = 25°C

VOUT = –1.22V

VOUT = –5V

VOUT = –3V

VOUT = –12V

VOUT = –15V

VOUT

100mV/DIV

IOUT

1A/DIV

COUT = 10μF

VOUT = –1.22V

ΔIOUT = –50mA TO –1.5A

3015 G39

25μs/DIV

VOUT

100mV/DIV

IOUT

1A/DIV

COUT = 47μF

VOUT = –1.22V

ΔIOUT = –50mA TO –1.5A

3015 G40

25μs/DIV

VOUT

100mV/DIV

IOUT

1A/DIV

COUT = 10μF

VOUT = –5V

CFF = 0

IFB-DIVIDER = 100μA

ΔIOUT = –50mA TO –1.5A

3015 G41

25μs/DIV

VOUT

100mV/DIV

IOUT

1A/DIV

COUT = 10μF

VOUT = –5V

CFF = 10nF

IFB-DIVIDER = 100μA

ΔIOUT = –50mA TO –1.5A

3015 G42

25μs/DIV

VOUT

100mV/DIV

IOUT

1A/DIV

COUT = 47μF

VOUT = –5V

CFF = 10nF

IFB-DIVIDER = 100μA

ΔIOUT = –50mA TO –1.5A

3015 G43

25μs/DIV

SHDN Transient Response,

IL = –1.5A, CFF = 10nF

VSHDN

1V/DIV

VOUT

2V/DIV

RL = 3.3Ω

COUT = 10μF

VOUT = –5V

CFF = 10nF

3015 G25

250μs/DIV

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