3.3 Volt LDO Recommendation

Projects General Guidance
1

Hi,
Looking at the 3.3 Volt LDO's available most require low ESR capacitors with some specifically stating Tantalum caps are required.

Can anyone recommend a part that can be used with more generic capacitors ? or an alternative approach to getting a 3.3 supply on standalone boards with a 5 volt supply ?

Thanks

Duane.

2

try looking for this one: TS1084 I got it either from farnel or RS-comp. I used it with a project and it performed nice. Be careful with the pin mapping, it's not like I expected, and I had to redo the PCB. other than that, I used generic capacitors (have no idea what type they were).

3

Many of the newer LDOs are designed for use with ceramic capacitors.

4

Hi,

The TS1084 part looks great however I can only order then in packs of 20 which I could live with in the UK, but by the time they are shipped to and marked up by the UAE Reseller its way too expensive for the single peice than I need.

Anyone suggest another part - 3.3 volt output and designed for use with generic capacitors ? A search of rs-online returns 900 results thats a lot of datasheets to dig through.

Thanks
Duane B

5

Hi,
Found this component -

Its low cost and tolerant in terms of capacitor types. Its only good for 250ma, but I am only using it to power a gyro and provide a reference voltage, the gyro spec indicates a current draw of less than 10ma.

Thanks

Duane B

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