ISL8012(2008) Просмотр технического описания (PDF) - Intersil
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ISL8012 Datasheet PDF : 15 Pages
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ISL8012
Typical Operating Performance (Unless otherwise noted, operating conditions are: TA = +25°C, VVIN = 2.5V to 5.5V, EN = VIN,
MODE = 0V, L = 1.5µH, C1 = 2x10µF, C2 = 2x10µF, IOUT = 0A to 2A). (Continued)
LX 2V/DIV
EN 5V/DIV
VOUT
0.5V/DIV
IL 1A/DIV
VOUT RIPPLE
50mV/DIV
FIGURE 21. LOAD TRANSIENT (PFM), (500µs/DIV)
IL 0.5A/DIV
PG 5V/DIV
FIGURE 22. SOFT-START WITH NO LOAD (PWM), (500µs/DIV)
EN 2V/DIV
VOUT
0.5V/DIV
EN 2V/DIV
VOUT
0.5V/DIV
IL 0.5A/DIV
PG 5V/DIV
FIGURE 23. SOFT-START AT NO LOAD (PFM), (500µs/DIV)
IL 0.5A/DIV
PG 5V/DIV
FIGURE 24. SOFT-START WITH PRE-BIASED 1V, (500µs/DIV)
EN 2V/DIV
VOUT
0.5V/DIV
IL 1A/DIV
PG 5V/DIV
FIGURE 25. SOFT-START AT FULL LOAD, (2ms/DIV)
10
EN 5V/DIV
VOUT
0.5V/DIV
IL 1A/DIV
PG 5V/DIV
FIGURE 26. SOFT-DISCHARGE SHUTDOWN, (2ms/DIV)
FN6616.0
March 11, 2008
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