Dec 8, 2005 #1 Z Zhasha Junior Member level 3 Joined Dec 3, 2005 Messages 30 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Location Denmark Activity points 1,643 5v to 3.5v Hello i need a 5V to 3.5V regulator, but where do i buy one? or if anyone has a schematic, how do i build one?
5v to 3.5v Hello i need a 5V to 3.5V regulator, but where do i buy one? or if anyone has a schematic, how do i build one?
Dec 8, 2005 #2 D drwho78 Full Member level 3 Joined Dec 31, 1999 Messages 162 Helped 10 Reputation 20 Reaction score 5 Trophy points 1,298 Activity points 1,141 3.5v regulator Use a step down regulator with adjustable output. You can get these regulators from National Semiconductor, Texas Instruments, Linear Technology, etc.
3.5v regulator Use a step down regulator with adjustable output. You can get these regulators from National Semiconductor, Texas Instruments, Linear Technology, etc.
Dec 9, 2005 #3 B Bingo600 Full Member level 5 Joined Aug 26, 2004 Messages 267 Helped 19 Reputation 38 Reaction score 6 Trophy points 1,298 Location Cyberspace Activity points 2,434 3.5v to 5v How many ma ??? I use Micrel 2920 3.3v ldo's (400 ma) /Bingo
Dec 10, 2005 #4 B BabyTiger Full Member level 2 Joined Aug 8, 2005 Messages 123 Helped 4 Reputation 8 Reaction score 2 Trophy points 1,298 Activity points 2,126 regulator 3.5v out You may use the LM2575-3.3. It is a switching regulator
Dec 10, 2005 #5 Z Zhasha Junior Member level 3 Joined Dec 3, 2005 Messages 30 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Location Denmark Activity points 1,643 lm3985 id like to be on the safe side, and 500mA is the maximum it'll have to take EDIT: and it should be able to take from 4.40V to 5.25V and give 3.00V to 3.60V, with a maximum I of 500mA
lm3985 id like to be on the safe side, and 500mA is the maximum it'll have to take EDIT: and it should be able to take from 4.40V to 5.25V and give 3.00V to 3.60V, with a maximum I of 500mA
Dec 12, 2005 #6 Externet Advanced Member level 2 Joined Jan 29, 2004 Messages 595 Helped 28 Reputation 58 Reaction score 30 Trophy points 1,308 Location Mideast US Activity points 5,914 5v a 3.5v Hi. Cannot understand the habit of doing things the hard way. Just connect two 1N4001 silicon diodes in series to your 5V source and you will get 3.5V Miguel
5v a 3.5v Hi. Cannot understand the habit of doing things the hard way. Just connect two 1N4001 silicon diodes in series to your 5V source and you will get 3.5V Miguel
Dec 20, 2005 #7 T TobiasB Junior Member level 1 Joined Dec 13, 2005 Messages 15 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Activity points 1,455 5 v to 3.5 v LM3985 or LM2985 from National is good....sleep and wakeup inculded