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PFC / PWM Combination IC FA5533/34
Features Features
•Critical mode Power Factor Correction and PWM are combined : suitable for smaller power supply •Internal start-up circuit with 500V rating and low frequency operation achieves 340mW input at no load when PFC stops. • Small Output Capacitance : Linearly reduced frequency for light load makes small ripple voltage. • PFC stops below half load ( only for FA5533 ) •Vcc rating 28V allows no series regulator for
PW M_ FB
LV
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FA5533 Datasheet
