ISL85410
Measurements fSW = 500kHz, VIN = 24V, VOUT = 3.3V, TA = +25°C (Continued)
LX 20V/DIV
LX 20V/DIV
VOUT 2V/DIV
IL 500mA/DIV
PG 2V/DIV
5ms/DIV
FIGURE 23. START-UP AT 1A, PWM
VOUT 2V/DIV
IL 500mA/DIV
200µs/DIV
PG 2V/DIV
FIGURE 24. SHUTDOWN AT 1A, PWM
LX 20V/DIV
VOUT 2V/DIV
IL 500mA/DIV
PG 2V/DIV
5ms/DIV
FIGURE 25. START-UP AT 1A, PFM
LX 20V/DIV
VOUT 2V/DIV
IL 500mA/DIV
200µs/DIV
PG 2V/DIV
FIGURE 26. SHUTDOWN AT 1A, PFM
LX 5V/DIV
5ns/DIV
FIGURE 27. JITTER AT NO LOAD, PWM
LX 5V/DIV
5ns/DIV
FIGURE 28. JITTER AT 1A LOAD, PWM
FN8375 Rev 7.00
March 13, 2015
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