Rainbow-electronics MAX1625 Manual de usuario Pagina 9

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MAX1624/MAX1625
High-Speed Step-Down Controllers with
Synchronous Rectification for CPU Power
_______________________________________________________________________________________ 9
N1
R1
N2
C2
D1
(OPTIONAL)
R9
(OPTIONAL)
R10
(OPTIONAL)
R8
39
C12
4.7nF
C11
4.7nF
V
CC
V
DD
CSH
PWROK
CSL
BST
DH
LX
DL
PGND
FB
PDRV
NDRV
AGND
REF
CC1
CC2
CC2
CC1
RC1
TO
AGND
C6, 1.0µF
CERAMIC
R4, 40.1k
FOR 500kHz
R5
100k
C9
0.1µF
C7
4.7µF
R6
100
TO V
DD
FREQ
D0
D1
D2
D3
D4
LG
REF
C5
0.1µF
C8
4.7µF
D2
CMPSH-3
C4
0.1µF
L1
V
IN
= 5V
C1
R7
39
LOCAL
BYPASSING
MAX1624
P1
R11
V
OUT
= 1.1V
TO 3.5V
N3
LOAD
Figure 1. MAX1624 Standard Application Circuit
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