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IC / MAX17031ETG / QFN /

تولید کننده: MAXIM
مدل کالا: QFN
موجودی:
تماس 8893- 6186
قیمت: 0تومان

MAX17031

The MAX17031 is a dual Quick-PWM™ step-down power-supply (SMPS) controller with synchronous rectification, intended for main 5V/3.3V power generation in ( MAX17031 ) battery-powered systems. Low-side MOSFET sensing provides a simple low-cost, highly efficient current sense for ( MAX17031 ) valley current-limit protection. Combined with the output overvoltage and undervoltage ( MAX17031 ) protection features, this current limit ensures robust output supplies. The 5V/3.3V SMPS ( MAX17031 ) outputs can save power by operating in pulse-skipping mode or in ultrasonic ( MAX17031 ) mode to avoid audible noise. Ultrasonic mode forces the controller to maintain switching frequencies ( MAX17031 ) greater than 20kHz at light loads. The SKIP input also has an accurate logic threshold, allowing it to be used as a secondary feedback input to refresh ( MAX17031 ) an external charge pump or secondary winding without overcharging the output voltages. ( MAX17031 ) An internal 100mA linear regulator generates the 5V bias needed for power-up or ( MAX17031 ) other low-power “alwayson” suspend ( MAX17031 ) supplies. An internal bypass circuitry ( MAX17031 ) allows automatic bypassing of the linear regulator when the 5V SMPS is active

 

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