Datasheet

MAX5038/MAX5041
Dual-Phase, Parallelable, Average Current-Mode
Controllers
20 ______________________________________________________________________________________
MAX5038
(MASTER)
Q4
Q3
D2
Q2
D1
V
IN
4 x 22µF
C8–C11
Q1
V
IN
V
IN
= +12V
V
CC
D4
D3
C40
0.1µF
C12
0.47µF
C38
4.7µF
C3–C7
5 x 22µF
L2
0.6µH
R2
1.35mΩ
L1
0.6µH
R1
1.35mΩ
DH1
LX1
DL1
BST1
V
CC
DH2
LX2
DL2
BST2
CSP2CSN2PGOODPHASECLKOUTSGNDPGNDCLP2CLP1
R9
PGOOD
V
CC
R6
C35
C36
R5
C33
C34
C39
0.1µF
C1, C2
2 x 47µF
R3
2.2Ω
C31
C32
R4
CSP1CSN1SENSE+SENSE-INCLKINPLLCMP
R8
R7
EAOUT
EAN
DIFF
OVPIN
EN
C13
0.47µF
C14, C15,
C41, C42
2 x 100µF
C16–C25,
C43–C46
14 x 270µF
C26–C30,
C37
6
x 10µF
LOAD
V
OUT
= +1.1V TO
+3.3V AT 104A
V
CC
MAX5038
(SLAVE)
Q8
Q7
D6
Q6
D5
V
IN
C52–C55
4 x 22µF
Q5
V
IN
D8
D7
C64
0.1µF
C57
0.47µF
C65
4.7µF
C48–C51
5 x 22µF
L4
0.6µH
R11
1.35mΩ
L3
0.6µH
R10
1.35mΩ
DH1
LX1
DL1
BST1
V
CC
DH2
LX2
DL2
BST2
CSP2CSN2PHASESGNDPGNDCLP2CLP1
V
CC
R15
C59
C58
R14
C60
C61
C47
0.1µF
R12
2.2Ω
C62
C63
R13
CSP1CSN1SENSE+SENSE-CLKININPLLCMPEN
R17
R16
EAOUT
EAN
DIFF
C56
0.47µF
R18
R19
V
CC
R
X
V
CC
R
X
Figure 7. Four-Phase Parallel Application Circuit (V
IN
= +12V, V
OUT
= +1.1V to +3.3V at 104A)