所需参数:
电压输入为 12V.也可降压.
电流输入为 1A.
但电流输入不稳定,有波动.
输出电压 5V
输出电流 500mA-1A均可以.
主要是给手机充电用.
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性价比高的,TPS56220x这些都可以。
http://www.ti.com/lit/ds/symlink/tps562201.pdf
谢谢。
TPS54331一类的降压都行,给手机充电不需要恒流芯片,只需要恒压限流芯片。如果是给电池充电,那么需要BQ24196一类的充电管理芯片。