C3225X7R1E106M 데이터 시트보기 (PDF) - Intersil

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C3225X7R1E106M

4-Channel Integrated LCD Supply

Intersil 

ISL97650B

Typical Performance Curves (Continued)

Ch1 = LX(buck)(5V/DIV)

Ch2 = IO(Buck)(10mA/DIV)

Ch1 = LX(buck)(5V/DIV)

Ch2 = IO(Buck)(10mA/DIV)

800ns/DIV

FIGURE 9. BUCK DISCONTINUOUS MODE

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

800ns/DIV

FIGURE 10. THRESHOLD OF BUCK FROM DC TO CC MODE

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

Ch2 = IO(Boost)(200mA/DIV)

FIGURE 11. BOOST CONVERTER PULSE-SKIPPING MODE

WAVEFORM

Ch1 = VLOGIC(VBUCK)(50mV/DIV)

Ch2 = IO(Buck)(500mA/DIV)

2ms/DIV

FIGURE 12. TRANSIENT RESPONSE OF BOOST

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

R1 = AVDD, R2 = AVDD_DELAY, R3 = VOFF

1ms/DIV

FIGURE 13. TRANSIENT RESPONSE OF BUCK

7

FIGURE 14. START-UP SEQUENCE

FN6748.1

March 22, 2010

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