3.3V/5V or Adjustable-Output,
Step-Up DC-DC Converters
_____________________________Typical Operating Characteristics (continued)
(Circuits of Figure 2, TA = +25°C, unless otherwise noted.)
MAX856/MAX857
LINE-TRANSIENT RESPONSE (5V MODE)
MAX856/MAX857
LOAD-TRANSIENT RESPONSE (5V MODE)
VOUT
50mV/div
3V
VIN
2V
2ms/div
MAX859 LINE-TRANSIENT RESPONSE
VOUT
50mV/div
ILOAD
0mA to 100mA
VIN = 2.5V
50µs/div
MAX858/MAX859 LOAD-TRANSIENT RESPONSE
VOUT
50mV/div
3V
VIN
2V
1V/div
VOUT
2V/div
1ms/div
MAX856 START-UP DELAY (5V MODE)
VSHDN
5V/div
VOUT
50mV/div
ILOAD
0
0mA to 25mA
25
VIN = 2.5V
2ms/div
MAX858/MAX859 START-UP DELAY (5V MODE)
VOUT
2V/div
VSHDN
5V/div
VIN = 2.5V, ILOAD = 100mA
5ms/div
VIN = 2.5V, ILOAD = 25mA
5ms/div
_______________________________________________________________________________________ 5