MAX8742(2004) Просмотр технического описания (PDF) - Maxim Integrated

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MAX8742
(Rev.:2004)

500kHz Multi-Output Power-Supply Controllers with High Impedance in Shutdown

Maxim Integrated 

500kHz Multi-Output Power-Supply Controllers

with High Impedance in Shutdown

INPUT

7V TO 24V

C3

5V OUTPUT

R1

C1

Q1

C4

0.1µF

L1

Q2

5V ON/OFF

3.3V ON/OFF

ON/OFF

10Ω

4.7µF

0.1µF

0.1µF

V+ SHDN SECFB VL

SYNC

BST5

BST3

DH5

DH3

LX5

LX3

DL5 MAX8741

DL3

PGND

GND

CSH5

CSL5

CSH3

CSL3

FB3

FB5

TIME/ON5

RUN/ON3

RESET

SKIP

STEER

REF

SEQ

1µF

0.1µF

5V ALWAYS ON

4.7µF

0.1µF

Q3

C5

0.1µF

L2

Q4

R2 3.3V OUTPUT

C2

RESET OUTPUT

2.5V ALWAYS ON

Figure 1. Standard 3.3V/5V Application Circuit (MAX8741)

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