MAX8543 MAXIM [Maxim Integrated Products], MAX8543 Datasheet - Page 9

• Manufacturer Part Number: MAX8543
• Description: Step-Down Controllers with Prebias Startup, Lossless Sensing, Synchronization, and OVP
• Manufacturer: MAXIM [Maxim Integrated Products]

(T
A
= +25°C, unless otherwise noted.)
Lossless Sensing, Synchronization, and OVP
Step-Down Controllers with Prebias Startup,
V
V
V
V
OUT
POK
OUT
V
EN
I
IN
IN
I
I
L
L
_______________________________________________________________________________________
MAX8544 ENABLE WAVEFORMS
SHORT CIRCUIT AND RECOVERY
2ms/div
1ms/div
V
V
OUT
V
V
DL
LX
IN
MAX8543 toc14
MAX8543 toc16
Typical Operating Characteristics (continued)
(OUTPUT PREBIASED AT 1.5V)
1.5V
5V/div
2V/div
5V/div
10A/div
0
10V/div
12V
1V/div
10A/div
0
10A/div
0
PREBIASED STARTUP
1ms/div
V
V
V
SYNCO
V
OUT
V
FSYNC
V
5V
MAX8543 toc18
DH
DL
OUT
V
LX
FSYNC AND SYNCO WAVEFORMS
OVERVOLTAGE PROTECTION
5V/div
2.5V
500mV/div
10V/div
5V/div
WITH 15A LOAD
40µs/div
2µs/div
MAX8543 toc17
MAX8543 toc15
1V/div
10V/div
5V
5V/div
0V
0V
1V/div
10V/div
5V/div
5V/div
9