Rainbow Electronics MAX742 - Manual (Page 5)

MAX742
Switch-Mode Regulator with
+5V to ±12V or ±15V Dual Output
_______________________________________________________________________________________ 5
A = GATE DRIVE, 5V/div
B = SWITCH VOLTAGE, 10V/div
C = SWITCH CURRENT, 0.2A/div
SWITCHING WAVEFORMS,
INVERTING SECTION
A
B
C
2 µ s/div
_____________________________Typical Operating Characteristics (continued)
(Circuit of Figure 2, I
LOAD
= 100mA, unless otherwise noted.)
A = GATE DRIVE, 5V/div
B = SWITCH VOLTAGE, 10V/div
C = SWITCH CURRENT, 0.2A/div
SWITCHING WAVEFORMS,
STEP-UP SECTION
A
B
C
2 µ s/div
A = NOISE WITH i FILTER, 1mV/div
B = NOISE WITHOUT FILTER, 20mV/div
MEASURED AT -V
OUT
V+ = 5V
BW = 5MHz
OUTPUT-VOLTAGE NOISE,
FILTERED AND UNFILTERED
A
B
2 µ s/div
A = +VO, 20mV/div
B = -VO, 50mV/div
LOAD-TRANSIENT RESPONSE
A
B
200 µ s/div