Owner manual

MAX5099
Dual, 2.2MHz, Automotive Synchronous Buck
Converter with 80V Load-Dump Protection
_______________________________________________________________________________________ 7
LINE-TRANSIENT RESPONSE
(BUCK CONVERTER)
MAX5099 toc10
0V
1ms/div
V
IN
5V/div
V
OUT1
= 5.0V/1.5A
AC-COUPLED
200mV/div
V
OUT2
= 3.3V/0.75A
AC-COUPLED
200mV/div
0V
CONVERTER 1
LOAD-TRANSIENT RESPONSE
MAX5099 toc11
100
μ
s/div
V
OUT1
= 5.0V
AC-COUPLED
200mV/div
I
OUT1
1A/div
0A
CONVERTER 2
LOAD-TRANSIENT RESPONSE
MAX5099 toc12
100
μ
s/div
V
OUT2
= 3.3V
AC-COUPLED
200mV/div
I
OUT2
500mA/div
0A
SOFT-START/SOFT-STOP FROM EN1
MAX5099 toc13
1ms/div
V
OUT1
= 5V/2A
5V/div
EN1
5V/div
P
GOOD1
5V/div
0V
0V
0V
f
SW
= 1.85MHz
SOFT-START FROM ON/OFF
MAX5099 toc14
2ms/div
V
OUT1
= 5V/2A
5V/div
ON/OFF
5V/div
GATE
10V/div
V+
10V/div
V
L
= EN1 = EN2
5V/div
0V
0V
0V
0V
OUT-OF-PHASE OPERATION
(FSEL_1 = V
L
)
MAX5099 toc15
200ns/div
SOURCE2
10V/div
DL1
10V/div
DL2
10V/div
SOURCE1
10V/div
0V
0V
0V
0V
Typical Operating Characteristics (continued)
(V+ = V
IN_HIGH
= 14V, unless otherwise noted. V+ = V
IN_HIGH
means that N1 is shorted externally.)