voltage regulator for 3.3V,2A

[gsmman]

Hi
I want to design a power supply for my gsm/gprs module which require 3.3 V , 2 A
I have a transformer which deliver an output voltage of 9 v , 2 A
Let anyone advice me regarding the voltage regulator which i have to be used.

Regards
Roy

 

[pranam77]

You may use LM317K (TO3) package) which is a 3 Amps variable voltage regulator, or LM317 TO220 package with current boost circuitry as given in the datasheet....Cheers

 

[IanP]

Here are two switching candidates:

1.5A - LM2651-3.3
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3.0A - LM2576-3.3 (or ADJ)
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Rgds,
IanP
:|

 

[gsmman]

thank you...

current boosting with capacitors?

 

[BuckySparks]

how to create a gsm power supply

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