Datasheet
MAX8543/MAX8544
Step-Down Controllers with Prebias Startup,
Lossless Sensing, Synchronization, and OVP
26 ______________________________________________________________________________________
Table 4. Suggested Component Manufacturers
MANUFACTURER COMPONENT WEBSITE PHONE
Central Semiconductor Diodes www.centralsemi.com 631-435-1110
Coilcraft Inductors www.coilcraft.com 800-322-2645
International Rectifier MOSFETs www.irf.com 310-322-3331
Kamaya Resistors www.kamaya.com 260-489-1533
Panasonic Capacitors www.panasonic.com 714-373-7366
Sanyo Capacitors www.sanyo.com 619-661-6835
Sumida Inductors www.sumida.com 847-956-0666
Taiyo Yuden Capacitors www.t-yuden.com 408-573-4150
TDK Capacitors www.component.tdk.com 847-803-6100
Vishay/Siliconix MOSFETs www.vishay.com 402-564-3131
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
GND
FSYNC
BST
DH
LX
IN
VL
DL
PGND
TOP VIEW
MAX8543
SS
COMP
CS-
FB
EN
CS+
ILIM
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
SYNCO
FSYNC
BST
DHCOMP
SS
GND
ILIM2
LX
IN
VL
DLCS+
CS-
EN
FB
12
11
9
10
PGND
POKMODE
ILIM1
MAX8544
Pin Configurations
Chip Information
TRANSISTOR COUNT: 4185
PROCESS: BiCMOS