Typical operating characteristics (continued) – Rainbow Electronics MAX15020 User Manual
Page 7
MAX15020
2A, 40V Step-Down DC-DC Converter with
Dynamic Output-Voltage Programming
_______________________________________________________________________________________
7
Typical Operating Characteristics (continued)
(V
IN
= 36V, Circuit of Figure 2, T
A
= +25°C, unless otherwise noted.)
SOFT-START VOLTAGE RISE
vs. REFIN VOLTAGE RISE
MAX15020 toc22
V
REFIN
dv/dt (V/ms)
V
SS
dv/dt (V/ms)
0.1
1
0.1
1
10
0.01
0.01
10
C
SS
= 0.1
µF
C
SS
= 0.01
µF
V
SS
AND V
OUT
RESPONSE TO REFIN PWM
MAX15020 toc23
2ms/div
1V
0.5V
0V
0V
20V/div
1V/div
1V/div
0V
V
PWM
V
REFIN
V
SS
V
OUT
D = 70% TO 100%
10k
Ω and 0.1µF RC ON REFIN
MODULATOR GAIN
vs. INPUT VOLTAGE
MAX15020 toc24
INPUT VOLTAGE (V)
MODULATOR GAIN (V/V)
35
30
25
20
15
10
8.5
9.0
9.5
10.0
10.5
11.0
8.0
5
40
SOFT-START CHARGE CURRENT
vs. TEMPERATURE
MAX15020 toc25
TEMPERATURE (
°C)
SOFT-START CHARGE CURRENT (
µ
A)
110
85
35
60
10
-15
14.6
14.7
14.8
14.9
15.0
15.1
15.2
15.3
15.4
15.5
14.5
-40
135