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请教,电源降压设计

时间:10-02 整理:3721RD 点击:
电源降压设计请教
我现在想搞一个降压的模块,输入电压大概在24v,希望可以输出12v,5v,3.3v,3v,2.8v,2v,1.8v,可调的,
当然,不可能在一个IC上全部做到,我的想法是24v降到5v,再用LDO一个一个的降压得来,需要很多LDO了
不知需要DC-DC么?
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maybe current should be under consideration,because of the efficiency.here came out one question.5V TO 12V with LDO,can it work?maybe that your point!

after a second consideration, one dual PWM output IC should be perfection.one channel for 12V,the other for 5V.12V solution could integrated FET or L moreover , it depond on current.TI,intesil....have many IC meeting  that solution.those can be search on their websit!

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