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標題: 關于XL4016 PWM buck芯片的控制 [打印本頁]

作者: SXQSXQSXQ    時間: 2018-12-28 22:06
標題: 關于XL4016 PWM buck芯片的控制
這是datasheet上的資料,求大佬看看這個芯片是怎么控制輸出電壓的
General Description The XL4016 is a 180 KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 8A load with high efficiency, low ripple and excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator.  
The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An over current protection function  is built inside. When short protection function happens, the operation frequency will be reduced from 180KHz to 48KHz. An internal compensation block is built in to minimize external component count.

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datasheet上的資料

datasheet上的資料

作者: cuihaodianzi    時間: 2020-6-20 23:12
VOUT = 1.25 * (1 + R2 / R1) 寫的那么清楚




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