Typical operating characteristics (continued) – Rainbow Electronics MAX8548 User Manual
Page 5
MAX8545/MAX8546/MAX8548
Low-Cost, Wide Input Range, Step-Down
Controllers with Foldback Current Limit
_______________________________________________________________________________________
5
CHANGE IN OUTPUT VOLTAGE
vs. INPUT VOLTAGE
MAX8545/46/48 toc10
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
4.5
4.0
3.5
3.0
1.79
1.80
1.81
1.82
1.83
1.84
1.78
2.5
I
LOAD
= 6V
CHANGE IN OUTPUT VOLTAGE
vs. INPUT VOLTAGE
MAX8545/46/48 toc11
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
18
20
22
24
16
14
12
2.49
2.50
2.51
2.52
2.48
10
I
LOAD
= 6V
FREQUENCY vs. INPUT VOLTAGE
MAX8545/46/48 toc12
INPUT VOLTAGE (V)
FREQUENCY (kHz)
22.94
17.88
12.82
7.76
294
298
302
306
310
290
2.70
28.00
V
OUT
= 2.5V
NO LOAD
MAX8545/
MAX8546
FREQUENCY vs. TEMPERATURE
MAX8545/46/48 toc13
TEMPERATURE (
°C)
FREQUENCY (kHz)
60.00
35.00
10.00
-15.00
294
298
302
306
310
290
-40.00
85.00
V
IN
= 12V
V
OUT
= 2.5V
NO LOAD
MAX8545/
MAX8546
0
V
OUT
AC COUPLED
100mV/div
I
OUT
5A/div
40
µs/div
LOAD TRANSIENT RESPONSE
MAX8545 toc14
V
IN
= 17V
V
OUT
= 2.5V
Typical Operating Characteristics (continued)
(V
IN
= V
L
= V
CC
= 5V, typical values are at T
A
= +25°C, unless otherwise noted.)