Fairchild/ON Semiconductor LM317T

LM317T Description The LM317T is a three-terminal adjustable positive voltage regulator capable of producing various DC voltage outputs other than a fixed voltage power supply of 5 or 12 volts, or as a variable output voltage ranging from a few volts to a maximum value, all at currents of roughly 1.5 amperes.
The lifecycle status of the part is NRND, which stands for "Not Recommended for New Designs". This status was last updated just 3 days ago, indicating that it is still a current and relevant component. The mount type for this part is through hole, meaning that it is designed to be inserted into a circuit board through a hole and soldered in place. The part status is also listed as "Not For New Designs", further emphasizing that it is not recommended for use in new projects. The terminal finish for this component is tin/lead (Sn/Pb), which is a commonly used material for soldering. The output voltage of the part is 37V, and the maximum supply voltage is 40V. The voltage output has a minimum/fixed value of 1.25V, while the minimum input voltage is 4.2V. The minimum output voltage is 1.2V. Additionally, the power supply rejection ratio (PSRR) is 80dB, indicating the ability of the part to maintain a stable output voltage despite changes in the power supply. Overall, this component is a reliable and versatile option for various electronic designs, despite its NRND status.
Guaranteed max. 0.01%/V line regulation (LM317A)
Guaranteed max. 0.3% load regulation (LM117)
Guaranteed 1.5A output current
Adjustable output down to 1.2V
Current limit constant with the temperature
P Product Enhancement tested
80 dB ripple rejection
Output is short-circuit protected

LM317T Applications Used for Positive voltage regulations
Variable power supply
Current limiting circuits
Reverse polarity circuits
Commonly used in Desktop PC, DVDs, and other consumer products
Used in motor control circuits