Typical operating characteristics (continued) – Rainbow Electronics MAX1837 User Manual
Page 6
MAX1836/MAX1837
24V Internal Switch, 100% Duty Cycle,
Step-Down Converters
6
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(Circuits of Figures 1 (MAX1836) and 2 (MAX1837), V
IN
= 12V, SHDN = IN, T
A
= +25°C.)
100
µs/div
MAX1837EUT50
LOAD TRANSIENT
A: I
OUT
= 10mA to 250mA, 200mA/div
B: V
OUT
= 5V, 20mV/div
C: I
L
, 500mA/div
V
IN
= 12V, FIGURE 6
400mA
200mA
5.02V
0
B
A
C
MAX1836/7 toc14
5.00V
4.98V
750mA
250mA
0
400
µs/div
MAX1837EUT50
LINE TRANSIENT
A: V
IN
= 9V to 18V, 10V/div
B: V
OUT
= 5V, R
OUT
= 100
Ω, 100mV/div
C: I
L
, 500mA/div
FIGURE 6
20V
10V
5.1V
0
B
A
C
MAX1836/7 toc15
5.0V
4.9V
500mA
0
400
µs/div
MAX1837EUT50
LINE TRANSIENT NEAR DROPOUT
A: V
IN
= 5V to 12V, 5V/div
B: V
OUT
= 5V, R
OUT
= 100
Ω, 100mV/div
C: I
L
, 500mA/div
FIGURE 6
15V
10V
5.1V
5V
B
A
C
MAX1836/7 toc16
5.0V
4.9V
500mA
0
200
µs/div
MAX1837EUT50
STARTUP WAVEFORM
A: V
SHDN
= 0 to 2V, 2V/div
B: V
OUT
= 5V, R
OUT
= 100
Ω, 2V/div
C: I
L
, 500mA/div
V
IN
= 12V,
FIGURE 6
2V
0
2V
4V
B
A
C
MAX1836/7 toc17
0
500mA
0