DiyLightAnimation

Hardware => Lynx Express => Topic started by: memphislights on April 13, 2010,

Title: Alternative to 879-UPC2933BHFZ 3.3V regulator, no longer listed by Mouser
Post by: memphislights on April 13, 2010,

Will either of these parts work? These will be a for a V3 and V4 LE upgrades.

From what I can tell, the pinouts are the same, but the tab is grounded for the MCP1826S-3302E/AB, and unspecified for the LF33CV.

MCP1826S-3302E/AB, currently in stock

http://www.mouser.com/ProductDetail/Microchip-Technology/MCP1826S-3302E-AB/?qs=sGAEpiMZZMsGz1a6aV8DcJ7KfjtCj7Xd5CqQpyOghgk%3d

or

LF33CV, currently out of stock

http://www.mouser.com/ProductDetail/STMicroelectronics/LF33CV/?qs=sGAEpiMZZMsGz1a6aV8DcCRy2MVkeVbmp5YuZTxfNv8%3d

Thanks.

Title: Re: Alternative to 879-UPC2933BHFZ 3.3V regulator, no longer listed by Mouser
Post by: memphislights on April 21, 2010,

****Update 4/20/2010****

I was able to retrofit the 3.3V regulator with the MCP1826S-3302E/AB.  It is pin compatible and spec'd to -40C.  I got a good 3.3V light, and the LE went through its test sequence with no apparent issues.  I did notice looking at the specs again that the max input voltage is 6V, but should not be a problem since the input is from the 5V regulator.  It does cost almost twice as much as the original regulator, but it is in stock.

Disclaimer:  This substitution has not been approved or recommended by RJ.

****End Update****