MAX1584 Datasheet, PDF (9/29 Pages) Maxim Integrated Products – 5-Channel Slim DSC Power Supplies

5-Channel Slim DSC Power Supplies
Typical Operating Characteristics (continued)
(Circuit of Figure 1, T_A = +25°C, unless otherwise noted.)
AUX MAXIMUM DUTY CYCLE
vs. FREQUENCY
88
WHEN THIS DUTY CYCLE IS EXCEEDED
87 FOR 100,000 CLOCK CYCLES,
THE MAX1584/MAX1585 SHUT DOWN
86
85
84
83
82
81
C_OSC = 330pF
80
0 100 200 300 400 500 600 700 800 900 1000
FREQUENCY (kHz)
STEP-UP STARTUP RESPONSE
MAX1584/85 toc14
ONSU
5V/div
0V
OUTSU
5V/div
0V
I_OUTSU
200mA/div
0A
I_IN
0A
1.0A/div
V_IN = 3.5V
200µs/div
STEP-DOWN STARTUP RESPONSE
MAX1584/85 toc15
ONSD
5V/div
0V
OUTSD
5V/div
0V
I_OUTSD
200mA/div
0A
4ms/div
V_IN = 3.5V
AUX1 STARTUP RESPONSE
MAX1584/85 toc16
ON1
5V/div
0V
OUT1
10V/div
0V
I_OUT1
100mA/div
0A
V_IN = 3.5V
2ms/div
STEP-UP LOAD-TRANSIENT RESPONSE
MAX1584/85 toc17
V_OUTSU
0V
AC-COUPLED
500mV/div
STEP-DOWN LOAD-
TRANSIENT RESPONSE
MAX1584/85 toc18
V_OUTSD
0V
AC-COUPLED
100mV/div
0A _{VOUTSU = 5.0V}
V_IN = 3.5V
400µs/div
I_{OUT_SU}
200mA/div
0A
V_IN = 3.5V
V_{OUT_SD} = 1.5V
400µs/div
I_{OUT_SD}
100mA/div
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