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Regulator architectures (for a CMOS image sensor)

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PaloAlto

PaloAlto

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Hi,

I need some reference voltages for a CIS chip. These references will also go off-chip, but has to be generated on-chip. Some of them are between the rails, but some aren't. The supplies are 0V for gnd and 3.3V for vdd. Transistors can work up to 6V.

I need to generate a couple of references a little bit below 3.3V (say 2.7V)
I need to generate a negative reference of at least -0.5V
I also need a voltage of some 5V

I don't have experience with regulators, could anyone help me with some reference? Possible architectures?

Thanks
 

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