Lpc2000

We have designed a LPC2106 board which currently use linear regulators. 
I am considering using switching regulators to cut power consumption
Has anyone suggestions and experience for suitable switching regulator 
chips for the 3.3 and 1.8 v? I would like an input range from 12 - 24 volts.

Owen Mooney

Owen
 
Take a look at Linear Technology's LT1934( max 250 ma) to generate the 3.3V.  They come in a SOT-23 package and use small external components.  The max Vin is 34 volts.  You can convert the 3.3V to 1.8 volts using an LDO or a switched cap 
regulator like the LTC1508-1.8.
 
If you need more output current, let me know what your requirements are and I might
be able to suggest something more appropriate.  
 
There literally hundreds of different switching regulators so good hunting...
 
Wayne
Owen Mooney <ojm@...> wrote:
We have designed a LPC2106 board which currently use linear regulators. 
I am considering using switching regulators to cut power consumption
Has anyone suggestions and experience for suitable switching regulator 
chips for the 3.3 and 1.8 v? I would like an input range from 12 - 24 volts.

Owen Mooney


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