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ISL97650 Datasheet(PDF) 7 Page - Renesas Technology Corp

Part # ISL97650
Description  4-Channel Integrated LCD Supply
PDF  20 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ISL97650 Datasheet(HTML) 7 Page - Renesas Technology Corp

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ISL97650
FN9198 Rev.4.00
Page 7 of 20
April 17, 2009
FIGURE 9. BUCK DISCONTINUOUS MODE
FIGURE 10. THRESHOLD OF BUCK FROM DC TO CC MODE
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)
400ns/DIV
Ch1 = LX(buck)(5V/DIV)
Ch2 = Io(Buck)(10mA/DIV)
400ns/DIV
Ch1 = LX(buck)(5V/DIV)
Ch2 = Io(Buck)(10mA/DIV)
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



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