Yes, LM2576 is also a good choice. Good Luck! ----- Original Message ----- From: "Bob Axtell" To: Sent: Wednesday, June 04, 2003 11:36 AM Subject: Re: [EE] Switch Mode Current regulation > I had incredible luck with National's 50Khz series , LM2576 in D2T mode. It > never gets warmer than 30C, and is 95% efficient, even operates down to > bottom+1V! NO heat. A wonderful part. Be careful to use the inductor they > recommend, to prevent flux saturation. > > It will still be working into the next century. > > --Bob > > At 03:24 PM 6/4/2003 +0100, you wrote: > >Hi > > > >As part of a battery charging circuit I need to regulate the current. The > >problem is I cannot lose the heat in the hand held device so need to use a > >Switch mode Current regulator. I have found them to be very thin on the > >ground. Can anybody recommend one? It needs to be capable of about 1500ma > >at 5V (I am charging 4 AA NIMH batteries) > > > > > >Many thanks > > > > > >Tim > > > >-- > >http://www.piclist.com#nomail Going offline? Don't AutoReply us! > >email listserv@mitvma.mit.edu with SET PICList DIGEST in the body > > --------------- > NOTICE > > 1. This account can accept email & attachments up to 10M in size. > 2. Federal Monitors: At request of client, some attachments are encrypted. > Please DO NOT delay traffic; please reply with credentials for password. > -------------- > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.486 / Virus Database: 284 - Release Date: 29/05/03 -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body