High Voltage Regulator (50V), ultra low power consumption?

[Fikus]

low power consumption voltage regulator

I need idea for the ultra low power consumption High Voltage regulator.

Input 60V (or even 150V).


I want to have linear regulation on the output between 2V and 50V.

I have Input between 0V and 3.3V (maybe 5V) and I need proportional output between 2V and 50V.

I have found good circuit in Horowitz book (page 369, figure 6.47) but I need something faster (this circuit has response around 60 uS).

Thanks,
Fikus

 

[qutang]

50v voltage regulator

the input is too low to a linear regulator.

 

[Fikus]

regulartor 50v

Of course, I have two input:

1) High voltage input (60V)

2) "control" voltage (0 - 3.3V or 0-5V)

I want to control High voltage input with "control" voltage. The same idea as in the Horowitz's book ...