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LM317BT

STMicroelectronics
Part Number LM317BT
Manufacturer STMicroelectronics
Description 1.2V to 37V adjustable voltage regulators
Published Feb 13, 2021
Detailed Description LM217, LM317 Datasheet 1.2 V to 37 V adjustable voltage regulators TO-220 D²PAK TO-220FP SOT223 Product status link L...
Datasheet PDF File LM317BT PDF File

LM317BT
LM317BT

Overview
LM217, LM317 Datasheet 1.
2 V to 37 V adjustable voltage regulators TO-220 D²PAK TO-220FP SOT223 Product status link LM217 LM317 Features • Output voltage range: 1.
2 to 37 V • Output current in excess of 1.
5 A • 0.
1% line and load regulation • Floating operation for high voltages • Complete series of protections: current limiting, thermal shutdown and SOA control Description The LM217, LM317 are monolithic integrated circuits in TO-220, TO-220FP, D²PAK and SOT223 packages intended for use as positive adjustable voltage regulators.
They are designed to supply more than 1.
5 A of load current with an output voltage adjustable over a 1.
2 to 37 V range.
The nominal output voltage is selected by means of a resistive divider, making the device exceptionally easy to use and eliminating the stocking of many fixed regulators.
DS0433 - Rev 22 - December 2021 For further information contact your local STMicroelectronics sales office.
www.
st.
com 1 Pin configuration Figure 1.
Pin connections (top view) LM217, LM317 Pin configuration TO-220 D²PAK TO-220FP OUTPUT ADJUST OUTPUT INPUT SOT223 DS0433 - Rev 22 page 2/34 2 Note: LM217, LM317 Maximum ratings Maximum ratings Symbol VI - VO IO TOP PD TSTG Table 1.
Absolute maximum ratings Parameter Input-reference differential voltage Output current Operating junction temperature for: Power dissipation LM217 LM317 LM317B Storage temperature Value Unit 40 V Internally limited A - 25 to 150 0 to 125 °C -40 to 125 Internally limited - 65 to 150 °C Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these condition is not implied.
Symbol RthJA RthJC Table 2.
Thermal data Parameter Thermal resistance junctionambient Thermal resistance junction-case D²PAK 62.
5 3 TO-220 50 5 TO-220FP 60 5 SOT223 110 15 Unit °C/W °C/W DS0433 - Rev 22 page 3/34 3 Diagram Figure 2.
Schematic diagram LM217, LM317 Diagram DS0433 - Rev 22 page 4/34 LM217, LM...


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