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BOOST -PWM control

Other Parts Discussed in Thread: TPS61071

Hi,I have a headphone project. I need a PWM synchronous boost IC. I don’t need PSM mode. I need a switching frequency much higher than 20KHZ at light load. Any suggestions?

vin=1.8v-4.2V  vout=4.4V Iout=2mA-50mA