Generate constant voltage sources from the power supply.

Suppose if I have a Vdd of 1.4V and I want to generate 1.2V and 1V constant voltages irrespective of the load from it, is there any possible way of achieving this?
Well I tried doing this by using current mirrors, but I couldnt achieve constant voltages from it because the load was changing. Is there any other method or solution for this?

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vineel13 said:

Suppose if I have a Vdd of 1.4V and I want to generate 1.2V and 1V constant voltages irrespective of the load from it, is there any possible way of achieving this?
Well I tried doing this by using current mirrors, but I couldnt achieve constant voltages from it because the load was changing. Is there any other method or solution for this?

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Well I am expecting a solution in the context related to IC designing using and not a board level one.
Thank You.

I'm trying to lower the power dissipation my designed circuit by giving lower supply voltages ( 1V and 1.2V) to some of the components. Now the only way I can do this is if I can generate these voltages from Vdd which is 1.4V, considering I want only only one power pin in the IC.
The current needed at 1V is around 100uA and the supply current is in the range of mA

A voltage regulator uses an opamp with a reference voltage driving a series pass transistor. But your Vdd is so low that I do not know of an opamp and series pass device that will work.

Take into account that you'll lower your load dissipation but the rest of the total energy given by your power supply is actually dissipated by your regulator/op amp/transistor. If you wanted to reduce the total power consumption then other methods of DC regulation should be used such as DC buck converters.