Re: 17 V linear voltage regulator

Mochuelo wrote:
Hi,

I need to go from Vin={18 V to 24 V} down to Vout=17 V with a linear
regulator. Iout is 60 mA. The LM317 and similar ones seem to need
around 3 V input-to-output to provide good regulation, which is too
much for me. I only have 1 V available. Does anyone know of a good smd
part for this? Of course, I already count on having to use resistors
to set the output voltage.

Thanks in advance,

You'll need a low dropout regulator (LDO). check the usual suspects web
sites (National, TI, Linear, Maxim, Zetec, On Semi, Fairchild, ST to
name but a few).

Most give parametric search

You'll need Vin (max) > 26V (have some headroom), Vo-Vi <= 0.8V @ load

Cheers

PeteS

.