LTC3534 Просмотр технического описания (PDF) - Linear Technology

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LTC3534

7V, 500mA Synchronous Buck-Boost DC/DC Converter

Linear Technology 

LTC3534

Block Diagram

L1

VIN

2.4V TO 7V

PVIN

12

+

13 VIN

+

CIN

+

+

5

SW1

SW A

ANTIRING

6

SW2

SW D

SW B

PGND1

GATE

DRIVERS

AND

ANTICROSS

CONDUCTION

+

Gm

=

1

100k

1.8A –

AVERAGE

CURRENT

LIMIT

+

–500mA

SW C

PGND2

THERMAL

SHUTDOWN

2.6A –

+

SUPPLY

CURRENT

LIMIT

2.2V

RSS

CSS

RUN/SS

2

–

UVLO

SHUTDOWN

SHUTDOWN

AND

SOFT-START

PWM

LOGIC

AND

OUTPUT

PHASING

PWM

COMPARATORS

REVERSE

CURRENT

LIMIT

VREF

1V

ERROR

AMP

VOUT

11

VOUT

1.8V TO 7V

COUT

FB

15

R1

RFF

CZ1

R2

VC

14

RZ

CP2

CP1

1MHz

OSC

PGND1

4

SLEEP

GND

EXPOSED PAD

PGND2

3

17

7

Burst Mode OPERATION

CONTROL

PWM

10

3534 BD

3534fb

8

For more information www.linear.com/LTC3534

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