Datasheet

MAX8543/MAX8544
Step-Down Controllers with Prebias Startup,
Lossless Sensing, Synchronization, and OVP
14 ______________________________________________________________________________________
MAX8543
SS
COMP
CS-
GND
VL
EN
LX
FB
CS+
PGND
DL
BST
DH
IN
ILIM
FSYNC
8
16
5
1
2
3
4
6
7
9
10
15
D1
C1
C2
C4A C4B C4D
IN
14
13
11
12
C3
C6A C6B
R6
R3
R1
R2
D2
C5
C9
R4
R5
N3
N4
L1
V
OUT
= 2.5V
UP TO 15A
V
IN
= (3V TO 3.6V)
N2
N1
C7
C8
C4C
ON
OFF
SYNC IN
C12
C11
C10
Figure 2. Typical Applications Circuit with 3.3V (±10%) Input, 2.5V Output at Up to 15A, and 500kHz Switching Frequency