Rainbow Electronics MAX15026 - Manual (Page 19)

MAX15026
Low-Cost, Small, 4.5V to 28V Wide Operating
Range, DC-DC Synchronous Buck Controller
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Typical Application Circuits
R5
10k
Ω
R3
4.02k Ω
R1
11.8k Ω
DH
LX
Q2
L1
1.4 µH
BST
DL
ENABLE
PGOOD
V IN
DRV
GND
RT
IN
V
CC
PGOOD
LIM
EN
COMP
FB
R7
4.02k Ω
R6
15.4k Ω
R4
27k Ω
R1*
*R1 IS A SMALL-VALUE RESISTOR TO DECOUPLE
SWITCHING TRANSIENTS CAUSED BY THE
MOSFET DRIVER (2.2
Ω).
C6
2.2
µF
C2
4.7
µF
C1
330
µF
PANASONIC
EEEFCIE331P
4.5V TO 28V
C10
4.7 µF
C7
68pF
C9
0.022 µF
C8
68pF
C11
1500pF
C4
470 µF
SANYO
4C54701
C5
22
µF
C3
0.47
µF
Q1
( )
V OUT
COILCRAFT
MSS1278-142ML
MAX15026
ON-SEMICONDUCTOR
NTMFS4835NTIG
( ) ON-SEMICONDUCTOR
NTMFS4835NTIG
Single 4.5V to 28V Supply Operation
Figure 5 shows an application circuit for a single 4.5V to 28V power-supply operation.
Figure 5. V IN = 4.5V to 28V