LM317 3-Terminal Adjustable Voltage Regulators LM317LZ

Product Description

- Output adjustable between 1.25V & 37V
- Internal thermal overload protection
- Internal short circuit current limiting constant with temperature
- Output transistor safe-area compensation
- Floating operation for high voltage applications
- Eliminates using many fixed voltages
- Output voltage with 4 tolerance The LM317 is an adjustable positive 3-terminal voltage regulator capable of supplying 100m A Order Code RA87U or 1.5A Order Codes UF27E & N61CA over an output voltage range of 1.2V to 37V. These voltage regulators are exceptionally easy to use & require only 2 external reistors to set the output voltage. Both line & load regulation are better than standard fixed regulators. Full overload protection is included on-chip with current limiting thermal & safe area protection. This remains fully functional even if the adjustment terminal is disconnected making it essentially blow-out proof. Order Code UF27E is supplied in a TO-220 style case. Order Code RA87U is supplied in a TO-92 style case. Order Code N61CA is supplied in a TO-263 style case. Specifications Output voltage 1.2V to 37 V Inputoutput differential voltage 40V max. Operating junction temperature-20 C to 125 CLine regulation 0.01 V Load regulation 0.1 Adjustment pin current 50micro A Reference voltage 1.25V typical Output noise 0.003 of Vout Ripple rejection ratio 65d B Long term stability 0.3 125 C