LTC3544EUD-TRPBF Просмотр технического описания (PDF) - Linear Technology

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LTC3544EUD-TRPBF

Quad Synchronous Step-Down Regulator: 2.25MHz, 300mA, 200mA, 200mA, 100mA

Linear Technology 

LTC3544

FUNCTIONAL DIAGRAMS

3

9

RUN200A RUN300

SW200A

5

VFB200A

2

SW300

8

VFB300

10

POWER

FETs

IBIAS200A

REG200A

POWER

FETs

IBIAS300

REG300

15

VCC

14

GNDA

SHDN

0.8V

REF

OSC

RUN

LOGIC

PVIN

7

PGND

6

16

12

RUN200B

RUN100

IBIAS100

POWER

FETs

REG100

IBIAS200B

POWER

FETs

REG200B

SW100

13

VFB100

11

SW200B

4

VFB200B

1

3544 FD01

REGULATOR

VFBx 1

–

ITH

EA

+

0.8V

SOFT-START

BURST

CLAMP

SLOPE

COMP

–

SLEEP

VSLEEP +

BURST

S

Q

RS

LATCH

R

Q

SWITCHING

LOGIC

AND

BLANKING

CIRCUIT

–+

ICOMP

ANTI

SHOOT-

THRU

3 PVIN

10Ω

4 SWx

8

SHUTDOWN

0.8V VREF

OSC

OSC

IRCMP

5 PGND

3544 FD02

3544fa

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