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| 5V linear reg with high max input voltage(>35V) and low quiescent draw(<200uA) |
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| Psi:
I'm not sure if it's the chip shortage, but I'm having trouble finding many options for a vreg similar to a 7805 but with quiescent draw under 200uA. I need the high input voltage (>35V) and when you combine that with 1A and low quiescent draw there isn't much available except for a few costly $5+ parts. Is that typical? Thanks |
| Zero999:
What's the drop-out voltage requirement? How about adding another transistor in series, to drop the voltage? |
| mikeselectricstuff:
Do you really need 1A and 35V in? That would dissipate way too much heat to be practical. For lower currentls, LP2951 isn't bad - 30V and 75uA Iq, but only 100mA out |
| Zero999:
Why not use a switched mode regulator? https://www.mouser.co.uk/datasheet/2/670/vxo78_1000-1774519.pdf https://www.maximintegrated.com/en/products/power/switching-regulators/MAX5097.html |
| mariush:
Good luck dissipating 30 watts of heat in a heatsink, to get 5v at 1A from 35v input. |
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