Instruction Manual

MAX15023
Wide 4.5V to 28V Input, Dual-Output
Synchronous Buck Controller
8 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(Supply = IN = 12V, unless otherwise noted. See Typical Application Circuit of Figure 6.)
STARTUP INTO PREBIASED OUTPUT
(1V PREBIASED)
MAX15023 toc23
2ms/div
V
OUT1
500mV/div
0V
STARTUP INTO PREBIASED OUTPUT
(1.5V PREBIASED)
MAX15023 toc24
2ms/div
V
OUT1
500mV/div
0V
DH_ AND DL_ DISOVERLAP
MAX15023 toc25
20ns/div
V
DH1
10V/div
V
DL1
5V/div
V
LX1
10V/div
I
OUT1
= 5A
DH_ AND DL_ DISOVERLAP
MAX15023 toc26
20ns/div
V
DH1
10V/div
V
DL1
5V/div
V
LX1
10V/div
I
OUT1
= 5A
OUT-OF-PHASE SWITCHING FORMS
MAX15023 toc27
1µs/div
V
LX1
10V/div
V
LX2
10V/div
I
LX1
5A/div
I
LX2
2A/div
I
OUT1
= 5A
I
OUT2
= 2.5A
SINK CURRENT-LIMIT WAVEFORMS
MAX15023 toc28
100µs/div
V
OUT1
200mV/div
V
LX1
20V/div
I
LX1
2A/div
1.5V PREBIASED