ISL97650 datasheet(7/20 Pages) INTERSIL

Part #	ISL97650

Description	4-Channel Integrated LCD Supply

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Manufacturer	INTERSIL [Intersil Corporation]

Direct Link	http://www.intersil.com/cda/home

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7

FN9198.3

November 28, 2006

FIGURE 11. BOOST CONVERTER PULSE-SKIPPING MODE

WAVEFORM

FIGURE 12. TRANSIENT RESPONSE OF BOOST

FIGURE 13. TRANSIENT RESPONSE OF BUCK

FIGURE 14. START-UP SEQUENCE

Typical Performance Curves (Continued)

Ch1 = VIN Ch2 = LX, Ch3 = AVDD, Ch4 = IINDUCTOR

1ms/DIV

Ch1 = AVDD(VBOOST)(100mV/DIV)

Ch2 = Io(Boost)(100mA/DIV)

1ms/DIV

Ch1 = VLOGIC(VBUCK)(10mV/DIV)

Ch2 = Io(Buck)(100mA/DIV)

Ch1 = CDLY, Ch2 = VREF, Ch3 = VLOGIC, Ch4 = VON

R1 = AVDD, R2 = AVDD_DELAY, R3 = VOFF

ISL97650

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