Step-down dc-dc converters, Typical operating characteristics (continued) – Rainbow Electronics MAX653 User Manual
Page 6
MAX639/MAX640/MAX653
5V/3.3V/3V/Adjustable, High-Efficiency,
Low I
Q
, Step-Down DC-DC Converters
6
_______________________________________________________________________________________
MAX653
LINE-TRANSIENT RESPONSE
A
B
A: V
IN,
4V TO 8V, 2V/div
B: V
OUT
, 100mV/div
V
OUT
= 3V, I
LOAD
= 100mA
10ms/div
A: V
IN,
6V TO 11.5V, 2V/div
B: V
OUT
, 100mV/div
V
OUT
= 5V, I
LOAD
= 100mA
MAX639
LINE-TRANSIENT RESPONSE
A
B
10ms/div
_____________________________Typical Operating Characteristics (continued)
(Circuit of Figure 3, internal feedback, L = 100µH, T
A
= +25°C, unless otherwise noted.)
A: I
LOAD,
0mA TO 100mA, 50mA/div
B: V
OUT
, 100mV/div, AC COUPLED
V
IN
= 5V, V
OUT
= 3V
MAX653
LOAD-TRANSIENT RESPONSE
A
B
1ms/div
MAX639
LOAD-TRANSIENT RESPONSE
A
B
A: I
LOAD,
0mA TO 200mA, 100mA/div
B: V
OUT
, 100mV/div, AC COUPLED
V
IN
= 9V, V
OUT
= 5V
1ms/div