LTC1775IGN datasheet(7/24 Pages) LINER

Part #	LTC1775IGN

Description	High Power No RSENSE TM Current Mode Synchronous Step-Down Switching Regulator

Download	24 Pages

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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7 / 24 page

7

LTC1775

+

INTVCC

CVCC

+

CIN

M2

VIN

16

EXTVCC

INTVCC

FCB

1

4

VPROG

8

SGND

6

RUN/SS

VIN

3

BG

10

PGND

4.7V

1.19V

CSS

1

µA

L1

1775 BD

9

BOOST

VIN

CB

M1

DB

12

TK

REV

15

SYNC

2

TG

13

SW

14

SWITCH

LOGIC/

DROPOUT

COUNTER

–

+

–

+

–

+

TA

×5.5

BA

×5.5

I2

1.19V

REF

FCNT

OVERVOLTAGE

SHUTDOWN

TOP

0.6V

5.2V

LDO REG

1.28V

1.19V

VFB

–

+

COUT

VOUT

3

µA

6V

0.6V

gm = 1m

CL

VOSENSE

7

+ –

0.7V

0.95V

ITH

5

CC1

RC

SLEEP

0.5V

ITHB

I1

S

OSC

Q

R

B

+ –

F

OV

EA

11

INTVCC

FU CTIO AL DIAGRA

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LTC1775IGN Datasheet(PDF) 7 Page - Linear Technology

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