fractional charge pump(1.5x) and regulated chareg pump

Hi guys,
Regarding 1.5x chareg pump,
I'm new tocharge pump,previously I though charge pump can only achieve 2^n of the input voltage，not sure about how to realize the fractional times ，is it realized by the synthesis of the capacitors using different voltage?
Regarding regulatd charge pump,
Can the output voltage be regulated,is it similar with the buck and boost,what's the principal behind this?
Thanks

你可以去看看ADI，maixim，TI的产品，它们的网站上都有的。
1.5X的要多用一个电容。

charge pump和buck/boost有本质上的不同，能量效率是不可比的。只不过charge pump不需要电感，便宜

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非常感谢

thank you for the knowledge