Simple problem: 0.20 V drop

J

Jim Thompson 19 years ago

New and improved 0.2V Dropper circuit at....

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Many parts, but textbook performance.

Maybe could be built compact enough with surface mount parts?

...Jim Thompson

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| 1962 | I love to cook with wine. Sometimes I even put it in the food.

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D

D from BC 19 years ago

Without thinking too much... Can the complementary cct be made with NPN transistors and then a 5 transistor array IC like LM3046 be used?

How about using the 200mV precision bandgap in the LT1635 op amp/reference IC.. Maybe just buffer the reference with the on board op amp. D from BC

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J

Jim Thompson 19 years ago

I don't know. The OP's request was for a 0.2V DROP _down_ from +1.55V

Might work. I'll have to try it.

...Jim Thompson

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J

Jim Thompson 19 years ago

See.....

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Where I did both a "dropper" version and a "regulator" version.

Looks like the LT1635 is struggling at VDD = +1.55V and Tamb = 50°C.

...Jim Thompson

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