Low Voltage Zener

Thread Starter

Robert.Adams

Joined Feb 16, 2010
112
Is there a device that could act something like a 200-300mV zener? I have a design that has a node that is voltage controlled by a transistor to be 5V + Vbe and I need to bump it up by about the amount mentioned.

If I try to cascade Vbe's I can accidentally turn on a different part of the circuit so I'm looking for something in the low range I mentioned above.

Thanks!
 

Thread Starter

Robert.Adams

Joined Feb 16, 2010
112
Ah, I shall look into those ideas.

A voltage divider isn't plausible since the node is in the middle of a discrete current source/sink configuration. The current is PWM controlled and a clamp makes sure the voltage does not exceed a certain value.
 
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