piclist 2002\08\01\234432a >
Thread: LM3485 Hysteretic PFET Buck Controller.
www.piclist.com/techref/index.htm?key=lm3485+hysteretic
picon face BY : Mike Singer email (remove spam text)

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Was: " More efficient way to drop voltage."

Russell McMahon wrote:
.
.
{Quote hidden}

Not cheaper (LM3485 is $.50 1K+), but
nevertheless, interesting. From LM3485 d
atasheet:
4.5V to 35V wide input range
1.242V to VIN adjustable output range
High Efficiency 93%
Maximum operating frequency > 1MHz

Look at attached "Typical Application Circuit".

Mike.


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