I am trying to use a voltage regulator to regulate a 12V, 2A DC Power supply down to ~5.2V with a load current of less than 0.5A.
Problem: the regulator is getting quite hot, and voltage is dropping down to 4.3V or so with my fan connected. The output voltage is correct (~5.2V) with no load connected.
This is the datasheet for the regulator. The 10 uF capacitor is a tantalum capacitor (16V), and the 22 uF capacitor is an aluminum capacitor (20V). I do not have a heatsink on the regulator.
Is there something I am misunderstanding about the application? Is there a different regulator that would perform better?