LTC3548AI Просмотр технического описания (PDF) - Linear Technology

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производитель

LTC3548AI

Dual Synchronous 400mA/800mA, 2.25MHz Step-Down DC/DC Regulator

Linear Technology 

BLOCK DIAGRAM

MODE/SYNC 6

REGULATOR 1

VFB1 1

0.6V +

ITH

EA

–

0.55V

–

UV

UVDET

+

+

OV

OVDET

0.65V

–

SHUTDOWN

RUN/SS1 2

0.6V REF

OSC

RUN/SS2 9

OSC

VFB2 10

REGULATOR 2 (IDENTICAL TO REGULATOR 1)

SLOPE

COMP

–

EN

SLEEP

0.65V

+

BURST

S

Q

RS

LATCH

R

Q

SWITCHING

LOGIC

AND

BLANKING

CIRCUIT

BURST

CLAMP

–+

ICOMP

ANTI

SHOOT-

THRU

IRCMP

PGOOD1

POR

COUNTER

PGOOD2

LTC3548A

VIN

57

4 SW1

11 GND

VIN

3 VIN

8 POR

5 GND

3548A BD

7 SW2

3548af

7

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