Lm317t Pins. Pin connections top view t o 22 0 t o 22 0f p d p a k lm217 lm317 pin configuration ds0433 rev 21 page 2 31. Its output can be adjusted by connecting a network of two resistors externally between the output pin and adjust the input pin.
So let s look into how to use this ic as a variable voltage regulator. Package pins size sot 223 dcy 4 46 mm 6 5 x 7 to 220 kcs 3 88 mm 10 15 x 15 4 to 220 kct 3 87 mm 10 2 x 8 6 to 263 ktt 3 155 mm 10 16 x 15 24 open in new find other linear regulators ldo features. Internal short circuit current limiting.
The last pin of the lm317 is the output pin.
This regulator is a simple component for use in low voltage or high voltage dc systems including networking equipment office equipment rechargeable mobile devices and much more. Looking from the front of the voltage regulator the first pin on the left is the adjustable pin the middle is vout and the last pin on the right is v in. Vin v in is the pin which receives the incoming voltage which is to be regulated down to a specified voltage. Below is the pinout.
