Excalibur
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Is anyone familiar with this device? I was wondering how it stacks up to an LM317 for audio power supplies. Which would be best.
L200 Voltage Regulator
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tangent
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That appears to be a very hard-to-find part. The only place it looks like I could order it is from DigiKey, with a 9-week lead time. It's from ST Microelectronics, suggesting that another manufacturer originally designed it, then discontinued it, since ST generally deals in generic designs.
Why do you find it interesting? You'll have to get someone else here interested in it, too, if you want people to dig into the specs to give you an answer.
Why do you find it interesting? You'll have to get someone else here interested in it, too, if you want people to dig into the specs to give you an answer.
jeffreyj
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Quote:
I am familiar with it and it is an decent performer made, as tangent noted, by ST. The only commercial device I've seen it used in is Autocom's motorcycle intercom systems (and it definitely struck me as an odd/inappropriate choice there).
The two regulators are really quite different, internally and externally. The 317 is a floating design that can be used to regulate output voltages far in excess of its pass transistor Vceo rating (it is the voltage differential that is important because the 317 isn't ground referenced). The L200 is a much more conventional design; more like a 78xx regulator but with a higher output current rating and user-adjustable current limit (which might make it a better choice for a benchtop testing supply).
A quick search of the L200 at ST's website will turn up the relevant information. Here's a link to the design guide (go up one level on this link to get the datasheet):
L200 Design Guide
It's no surprise that Digi-Key has such a long lead time since they don't carry ST parts. Mouser is ST's main US distributor and a quick stock check of the part shows they have plenty in stock:
L200 at Mouser
| Originally posted by Excalibur Is anyone familiar with this device? I was wondering how it stacks up to an LM317 for audio power supplies. Which would be best. |
I am familiar with it and it is an decent performer made, as tangent noted, by ST. The only commercial device I've seen it used in is Autocom's motorcycle intercom systems (and it definitely struck me as an odd/inappropriate choice there).
The two regulators are really quite different, internally and externally. The 317 is a floating design that can be used to regulate output voltages far in excess of its pass transistor Vceo rating (it is the voltage differential that is important because the 317 isn't ground referenced). The L200 is a much more conventional design; more like a 78xx regulator but with a higher output current rating and user-adjustable current limit (which might make it a better choice for a benchtop testing supply).
A quick search of the L200 at ST's website will turn up the relevant information. Here's a link to the design guide (go up one level on this link to get the datasheet):
L200 Design Guide
It's no surprise that Digi-Key has such a long lead time since they don't carry ST parts. Mouser is ST's main US distributor and a quick stock check of the part shows they have plenty in stock:
L200 at Mouser
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