Rainbow-electronics MAX1635 Manual do Utilizador descarregar pdf (Página 10)

MAX1630–MAX1635

Multi-Output, Low-Noise Power-Supply

Controllers for Notebook Computers

10 ______________________________________________________________________________________

LPF

60kHz

REF

1.75V

2.68V

2.388V

4.5V

REF

2.5V

REF

200kHz

300kHz

OSC

PWM

LOGIC

LINEAR

REG

BST3

DH3

LX3

DL3

+3.3V

ON/OFF

INPUT

+5V ALWAYS ON

CSL5

SHDN

V+ SYNC

12V

LINEAR

REG

+12V

13V

BST5

RAW +15V

DH5

DL5

PGND

CSH5

CSL5

CSH3

CSL3

FB5

RESET

SEQ

2.6V

0.6V 0.6V

GND RUN/ON3

TIME/ON5

REF

LX5

+5V

12OUT

SECFB

3.3V

PWM

LOGIC

REF

OUTPUTS

LPF

60kHz

TIMER

POWER-ON

SEQUENCE

LOGIC

FB3

MAX1632

OV/UV

FAULT

Figure 2. MAX1632 Block Diagram

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 27 28

MAX1630–MAX1635 1

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