Typical operating characteristics (continued) – Rainbow Electronics MAX15046B User Manual
Page 6
40V, High-Performance, Synchronous
Buck Controller
MAX15046
6 ______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
IN
= 24V, T
A
= +25NC, unless otherwise noted.)
LIM REFERENCE CURRENT
vs. TEMPERATURE
TEMPERATURE (NC)
CURRENT
(F
A)
110
95
-25 -10 5
35 50 65
20
80
45
50
55
60
65
70
75
80
40
-40
125
MAX15046 toc10
SINK AND SOURCE CURRENT LIMIT
THRESHOLDS vs. RESISTANCE (R
ILIM
)
RESISTANCE (kI)
CURRENT-LIMIT THRESHOLD (V)
60
50
30
40
20
10
-0.30
-0.25
-0.20
-0.15
-0.10
-0.05
0
0.05
0.10
0.15
0.20
-0.35
0
70
MAX15046 toc11
SINK CURRENT LIMIT
SOURCE CURRENT LIMIT
LOAD TRANSIENT ON OUT (1A TO 10A)
MAX15046 toc12a
I
OUT
5A/div
V
OUT
200mV/div
200Fs/div
LOAD TRANSIENT ON OUT (1A TO 15A)
MAX15046 toc12b
I
OUT
5A/div
V
OUT
200mV/div
200Fs/div
LOAD TRANSIENT ON OUT (1A TO 6A)
MAX15046 toc12c
I
OUT
5A/div
V
OUT
100mV/div
200Fs/div
STARTUP DISABLE FROM EN
(R
LOAD
= 3.3I)
MAX15046 toc13
V
OUT
2V/div
PGOOD
5V/div
IN
20V/div
EN
5V/div
4ms/div
STARTUP AND DISABLE FROM IN
(R
LOAD
= 3.3kI)
MAX15046 toc14
V
OUT
2V/div
PGOOD
5V/div
IN
10V/div
20ms/div
STARTUP WITH PREBIASED
OUTPUT (4.0V)
MAX15046 toc15a
V
OUT
2V/div
PGOOD
5V/div
IN
10V/div
24V
4V
4ms/div
STARTUP WITH PREBIASED
OUTPUT (1.0V)
MAX15046 toc15b
V
OUT
2V/div
PGOOD
5V/div
IN
10V/div
24V
1V
4ms/div