Typical operating characteristics (continued) – Rainbow Electronics MAX1585 User Manual
Page 9
MAX1584/MAX1585
5-Channel Slim DSC Power Supplies
_______________________________________________________________________________________
9
AUX1 STARTUP RESPONSE
MAX1584/85 toc16
2ms/div
ON1
5V/div
OUT1
10V/div
I
OUT1
100mA/div
0A
0V
0V
V
IN
= 3.5V
STEP-UP LOAD-TRANSIENT RESPONSE
MAX1584/85 toc17
400
µs/div
V
OUTSU
AC-COUPLED
500mV/div
I
OUT_SU
200mA/div
0A
0V
V
OUTSU
= 5.0V
V
IN
= 3.5V
STEP-DOWN LOAD-
TRANSIENT RESPONSE
MAX1584/85 toc18
400
µs/div
V
OUTSD
AC-COUPLED
100mV/div
I
OUT_SD
100mA/div
0A
0V
V
IN
= 3.5V
V
OUT_SD
= 1.5V
AUX MAXIMUM DUTY CYCLE
vs. FREQUENCY
MAX1584/85 toc13
FREQUENCY (kHz)
MAXIMUM DUTY CYCLE (%)
900
800
100 200 300
500 600
400
700
81
82
83
84
85
86
87
88
80
0
1000
C
OSC
= 330pF
WHEN THIS DUTY CYCLE IS EXCEEDED
FOR 100,000 CLOCK CYCLES,
THE MAX1584/MAX1585 SHUT DOWN
STEP-UP STARTUP RESPONSE
MAX1584/85 toc14
200
µs/div
ONSU
5V/div
OUTSU
5V/div
I
OUTSU
200mA/div
I
IN
1.0A/div
0A
0A
0V
0V
V
IN
= 3.5V
STEP-DOWN STARTUP RESPONSE
MAX1584/85 toc15
4ms/div
ONSD
5V/div
OUTSD
5V/div
I
OUTSD
200mA/div
0A
0V
0V
V
IN
= 3.5V
Typical Operating Characteristics (continued)
(Circuit of Figure 1, T
A
= +25°C, unless otherwise noted.)