Anybody know what this is?

 

Insufficient information.

You don't need to use a .docx file; many won't open them (even though .docx aren't supposed to contain macros).

 

Typical Application for MIC5252: 150mA High PSRR, Low Noise Cap CMOS LDO. The MIC5252 is an efficient, precise CMOS voltage regulator optimized for ultra-low-noise applications. It offers 1% initial accuracy, extremely low dropout voltage (135mV at 150mA) and low ground current (typically 90μA). The MIC5252 provides a very low noise output, ideal for RF applications where a clean voltage source is required. The MIC5252 has a high PSRR even at low supply voltages, critical for battery-powered electronics. A noise bypass pin is also available for further reduction of output noise.

 

Thank you

 

OK, Danko got it. But how did you get an image with correct labels without seeing the specifications sheet??

 

Just lucky I guess
https://blog.adafruit.com/2012/03/02/new-electronics-reference-sheet/

 

Just lucky I guess
https://blog.adafruit.com/2012/03/02/new-electronics-reference-sheet/

OK, now I see! But all should know that single surface mount transistors are offered in every possible connection arrangement, all with the same part number and only a letter following to describe which is which. Also opamps. That confused me fro several minutes while checking a PCB design against the circuit, a while back ST semiconductors was the guilty party at the time.