max738a Maxim Integrated Products, Inc., max738a Datasheet - Page 6

• Manufacturer Part Number: max738a
• Description: 5v, Step-down, Current-mode Pwm Dc-dc Converters
• Manufacturer: Maxim Integrated Products, Inc.

5V, Step-Down,
Current-Mode PWM DC-DC Converters
(Circuit of Figure 3, T
A: SWITCH VOLTAGE (LX PIN), 5V/div, 0V TO +12V
B: INDUCTOR CURRENT, 200mA/div
C: OUTPUT VOLTAGE RIPPLE, 50mV/div, AC-COUPLED
C OUT = 390 F,
V+ = 12V, I OUT = 150 A,
A: V OUT , 50mV/div, DC-COUPLED
B: V+, 5V/div, 6.0V TO 11.0V
I OUT = 300mA
6
____________________________Typical Operating Characteristics (continued)
_______________________________________________________________________________________
MAX730A LINE-TRANSIENT RESPONSE
SWITCHING WAVEFORMS,
CONTINUOUS CONDITION
MAX738A/MAX744A
100ms/div
2 s/div
A
= +25°C, unless otherwise noted.)
12V
0V
200mA
0mA
11V
6V
0V
A
B
C
A
B
MAX738A/MAX744A LINE-TRANSIENT RESPONSE
A: SWITCH VOLTAGE (LX PIN), 5V/div, 0V TO +12V
B: INDUCTOR CURRENT, 200mA/div
C: OUTPUT VOLTAGE RIPPLE, 50mV/div, AC-COUPLED
C OUT = 390 F,
V+ = 12V, I OUT = 150 A
A: V OUT , 50mV/div, DC-COUPLED
B: V+, 5V/div, 10.2V TO 16.0V
I OUT = 750mA
DISCONTINUOUS CONDITION
SWITCHING WAVEFORMS,
MAX738A/MAX744A
100ms/div
2 s/div
12V
0V
200mA
0mA
0V
16V
10.2V
A
B
C
A
B