MAX1901ETJ 查看數據表（PDF） - Maxim Integrated

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MAX1901ETJ

500kHz Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers

Maxim Integrated 

500kHz Multi-Output, Low-Noise Power-Supply

Controllers for Notebook Computers

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 MAX1901

MAX1904 DL3

PGND

GND

CSH5

CSL5

CSH3

CSL3

FB3

FB5

TIME/ON5

RUN/ON3

RESET

SKIP

STEER

REF

SEQ

1µF

Figure 1. Standard 3.3V/5V Application Circuit (MAX1901/MAX1904)

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

*1A SCHOTTKY DIODE REQUIRED

FOR THE MAX1901 (SEE THE OUTPUT

OVERVOLTAGE PROTECTION SECTION).

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