On Fri, 24 Apr 2009 12:23:45 -0700, PlainBill put finger to keyboard and composed:
There are many variants of the UTC1117 linear LDO regulator.
I see this one quite often:
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It comes in an adjustable version and fixed versions - 1.5V, 1.8V,
2.5V, 3.3V, and 5.0V. The part number incorporates the voltage, eg AP1117E18 is a 1.8V device.Your Bnn numbers would be voltage ratings.
Here's an NS version:
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... and another:
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This LG Innotek VSB/QAM + NTSC tuner datasheet refers to a "3.3V supply voltage for LGDT3303" and a "1.8V supply voltage for LGDT3303":
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See pages 21 and 22.
That looks right for a 1.2V supply:
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Good luck.
- Franc Zabkar