Datasheet

MAX5038/MAX5041
Dual-Phase, Parallelable, Average Current-Mode
Controllers
12 ______________________________________________________________________________________
Dual-phase converters with an out-of-phase locking
arrangement reduce the input and output capacitor
ripple current, effectively multiplying the switching fre-
quency by the number of phases. Each phase of the
MAX5038/MAX5041 consists of an inner average cur-
rent loop controlled by a common outer-loop voltage-
error amplifier (VEA) that corrects the output voltage
errors. The MAX5038/MAX5041 utilize a single control-
ling VEA and an average current mode to force the
phase currents to be equal.
CLKIN
PLLCMP
PGND
PHASE
DL2
LX2
DH2
DL1
LX1
DH1
V
CC
EAOUT
EAN
DIFF
EN
CSP2
CSN2
CSP1
CSN1
MAX5041
3
R1
C39
V
IN
= +12V
C1,
C2
21
15
IN
C25
C26
R4
R7
R8
R6
C29
C30
R5
C27
C28
SGND
CLP2
CLP1
Q2
Q1
D2
Q2
D1
V
IN
Q1
V
IN
D4
D3
C32
C12
C31
C3–C7
L2
R3
L1
R2
C13
C8–C11
C14,
C15
C16–C24,
C33
LOAD
+1.8V AT 60A
V
OUT
SENSE -
SENSE +
17
18
19
16
20
25
24
23
26
9
8
14
13
1
2
BST1
V
CC
28
4
10
11
12
7
5
6
22
BST2
NOTE: SEE TABLE 1 FOR COMPONENT VALUES.
R
H
R
L
V
CC
R
X
Figure 2. MAX5041 Typical Application Circuit, V
IN
= +12V