| ??? 06/18/06 09:54 Modified: 06/18/06 10:38 Read: times  | 
#118490 - Re : some hints Responding to: ???'s previous message  | 
Kai,
 Thanks again for your information. Ofcourse I mean OP249. I'm going to do some tests now. I hope this will give an idea of the noise rejection. A good PCB design is the next step. I also have been searching for a replacement of the 78xx and 79xx. The quiescent current of these regulators is a little high.About 5 mA. The thing is I can find low current LDO but they don't accept 15V on their inputs and vice versa. Are there components with a positive and negative regulator in one housing? Believe me : I have searched but eventually I was blinded by the big amount of regulators out there... Peter  | 
| Topic | Author | Date | 
| DC/DC converter for audio application | 01/01/70 00:00 | |
| It can be done | 01/01/70 00:00 | |
| Murata filter | 01/01/70 00:00 | |
| is there a thing called a "Murata filter | 01/01/70 00:00 | |
| Murata | 01/01/70 00:00 | |
| People who can hear caps... | 01/01/70 00:00 | |
| Caps, guitarplayers and DC/DC converters | 01/01/70 00:00 | |
| Some hints... | 01/01/70 00:00 | |
| Re : some hints | 01/01/70 00:00 | |
| 78L12, 79L12 | 01/01/70 00:00 | |
| LM317L and LM337L | 01/01/70 00:00 | |
| He could add a choke... | 01/01/70 00:00 | |
| LDOs | 01/01/70 00:00 | |
| Re:LDOs | 01/01/70 00:00 | |
| Very helpful, though | 01/01/70 00:00 | |
| Re : Very helpful, though | 01/01/70 00:00 | |
| Pop-eliminator | 01/01/70 00:00 | |
| Re : Pop-eliminator | 01/01/70 00:00 | |
| Caps charging | 01/01/70 00:00 | |
| 9v batteries | 01/01/70 00:00 | |
| Re : 9v batteries | 01/01/70 00:00 | |
| Batteries which hum | 01/01/70 00:00 | |
| Re : Batteries which hum | 01/01/70 00:00 | |
| Bridging the divide | 01/01/70 00:00 | |
| I remember | 01/01/70 00:00 | |
| Noisy batteries | 01/01/70 00:00 | |
| Linear tech LT1533 | 01/01/70 00:00 | |
      Re : Linear LT1533        | 01/01/70 00:00 | 



