MAX15046_10 Datasheet, PDF (6/24 Pages) Maxim Integrated Products – 40V, High-Performance, Synchronous Buck Controller

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