Rainbow-electronics MAX1638 Manuale Utente Scaricare il pdf (Pagina 8)

MAX1638

High-Speed Step-Down Controller with

Synchronous Rectification for CPU Power

8 _______________________________________________________________________________________

+

-

+

-

REF

REF4REF3

REF2

REF

FB D0–D4 PWROK PDRV NDRV

CC2

CC1

REF1

5

10k

40k

WINDOW

CONTROL AND

DRIVE LOGIC

OSCILLATOR

SLOPE

COMPENSATION

AGND

V

CC

FREQ

REF4REF1

REF

REF3 REF2

CSL

CSH

LG

BST

DH

LX

V

DD

DL

RESET

Q

Q

SET

PGND

MAX1638

N

g

m

Figure 2. Simplified Block Diagram

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

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