Package: LD1117A (package sot223)
Power: USB adapter( mobile charger ) 5.3 V 2 A
When these is not r1 resistor present and adj is connected to ground, Vout is 4.9 V for Vin 5.3 V.
r1 is 120 ohm and r2 is adjusted with 20 k potentiometer to get 3.46 V at output. Then load (essentially esp8266 01) is connected, voltage drops to 0.6v and even on adjusting potentiometer to full 20 k, vout just reaches 0.71 V.
Why is this happening?
How to resolve so that ESP8266-01 gets power up?
Datasheet See page 12