Rainbow Electronics MAX1625 - Manual (Page 10)

MAX1624/MAX1625
High-Speed Step-Down Controllers with
Synchronous Rectification for CPU Power
10 ______________________________________________________________________________________
LOCAL
BYPASSING
N1
R1
N2
C2
R3
100k Ω
R2
200k Ω
C10
(OPTIONAL)
D1
(OPTIONAL)
R9
(OPTIONAL)
R10
(OPTIONAL)
C12
4.7nF
C11
4.7nF
V CC V DD
CSH
PWROK
CSL
BST
DH
LX
DL
PGND
FB
AGND
REF
CC1
CC2
CC2
CC1 RC1
TO
AGND
C6, 1.0 µ F
CERAMIC
R4, 40.1k Ω
FOR 500kHz
R5
100k Ω
C9
0.1 µ F
C7
4.7 µ F
R6
100 Ω
TO V DD
FREQ
C5
0.1 µ F
C8
4.7 µ F
D2
CMPSH-3
C4
0.1
µ F
V IN = 5V
C1
R7
39 Ω
R8
39 Ω
LOAD
V OUT
L1 MAX1625
Figure 2. MAX1625 Standard Application Circuit