The 1700 specifies 0-2 ohms ESR (Spec,Sec 5.2). I bought some a few months ago, they were not available, but Microchip Direct had them. Shipped from the factory, I was presently suppressed and with the price? ----- Original Message ----- From: "Olin Lathrop" To: "Microcontroller discussion list - Public." Sent: Thursday, April 16, 2009 7:06 AM Subject: Re: [EE] 1.0 uF Decoupling Cap - A Must? > Mike Harrison wrote: >>> This is one thing I like about the Microchip MCP1700 and MCP1702 LDOs. >>> They are guaranteed stable with 0 ESR output caps. >> >> Whearas the MCP1701 does specify a min ESR > > Which is exactly why I didn't mention it. I don't like the MCP1701 much. > It looks like it was a intermediate product on the way to the MCP1702. > >> min ESR requirements are not all that common > > Really? Over half of the LDOs I've looked at don't allow 0 ESR output > caps. > I'd say this issue is common. Last time I looked into it was maybe a > couple > of years ago, and at that time not a single one of the cheap asian LDOs > were > specified to work with 0 ESR output cap. Some ignored the issue which is > even worse. Can you show me one that specifically says it works with a 0 > ESR output cap? > > > ******************************************************************** > Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products > (978) 742-9014. Gold level PIC consultants since 2000. > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist