fitipower integrated technology lnc.
FR9886
Typical Performance Curves
VIN = 12V, VOUT = 3.3V, C1 = 10uF x 2, C2 = 22uF x 2, L1 = 10uH, TA = +25℃, unless otherwise noted.
IOUT=0A
IOUT=2.5A
85T
VSHDN 5V/div.
VSHDN 5V/div.
VOUT 1V/div.
IL 1A/div.
VLX 5V/div.
4ms/div.
Figure 17. Power On through SHDN Waveform
IOUT=0A
VSHDN 5V/div.
VOUT 1V/div.
IL 1A/div.
VLX 5V/div.
4ms/div.
Figure 19. Power Off through SHDN Waveform
VOUT 200mV/div.
VOUT 1V/div.
IL 1A/div.
VLX 5V/div.
4ms/div.
Figure 18. Power On through SHDN Waveform
IOUT=2.5A
VSHDN 5V/div.
VOUT 1V/div.
IL 1A/div.
VLX 5V/div.
80us/div.
Figure 20. Power Off through SHDN Waveform
VOUT 1V/div.
IL 1A/div.
400us/div.
Figure 21. Load Transient Waveform
FR9886- 1.0-APR-2011
IL 1A/div.
40us/div.
Figure 22. Short Circuit Test
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