Typical operating characteristics (continued) – Rainbow Electronics MAX608 User Manual
Page 5
MAX608
5V or Adjustable, Low-Voltage,
Step-Up DC-DC Controller
_______________________________________________________________________________________
5
____________________________Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
V
IN
= 4V, I
OUT
= 490mA, V
OUT
= 12V
A = EXT VOLTAGE, 10V/div
B = INDUCTOR CURRENT, 1A/div
C = V
OUT
RIPPLE, 50mV/div, AC-COUPLED
HEAVY-LOAD SWITCHING WAVEFORMS
(V
OUT
= 12V)
A
B
C
V
OUT
0V
I
LIM
0A
2
µ
s/div
V
IN
= 4V, I
OUT
= 300mA, V
OUT
= 12V
A = EXT VOLTAGE, 10V/div
B = INDUCTOR CURRENT, 1A/div
C = V
OUT
RIPPLE, 50mV/div, AC-COUPLED
MEDIUM-LOAD SWITCHING WAVEFORMS
(V
OUT
= 12V)
A
B
C
V
OUT
0V
I
LIM
0A
10
µ
s/div
V
IN
= 2V, V
OUT
= 5V
A = LOAD CURRENT, 0mA TO 500mA, 500mA/div
B = V
OUT
RIPPLE, 50mV/div, AC-COUPLED
LOAD-TRANSIENT RESPONSE
(V
OUT
= 5V)
A
B
500mA
0A
2ms/div
I
OUT
= 500mA, V
OUT
= 5V
A = V
IN
, 2.7V TO 4.0V, 1V/div
B = V
OUT
RIPPLE, 100mV/div, AC-COUPLED
LINE-TRANSIENT RESPONSE
(V
OUT
= 5V)
A
B
4.0V
2.7V
5ms/div
I
OUT
= 500mA, V
IN
= 3.5V
A = SHDN, 2V/div
B = V
OUT
, 2V/div
EXITING SHUTDOWN
A
B
0V
0V
5V
200
µ
s/div