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LM317KC View Datasheet(PDF) - Texas Instruments

Part NameDescriptionManufacturer
LM317KC 3-Terminal Adjustable Regulator TI
Texas Instruments TI
LM317KC Datasheet PDF : 32 Pages
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LM317
SLVS044W – SEPTEMBER 1997 – REVISED OCTOBER 2014
LM317 3-Terminal Adjustable Regulator
1 Features
1 Output Voltage Range Adjustable
From 1.25 V to 37 V
• Output Current Greater Than 1.5 A
• Internal Short-Circuit Current Limiting
• Thermal Overload Protection
• Output Safe-Area Compensation
2 Applications
• ATCA Solutions
• DLP: 3D Biometrics, Hyperspectral Imaging,
Optical Networking, and Spectroscopy
• DVR and DVS
• Desktop PC
• Digital Signage and Still Camera
• ECG Electrocardiogram
• EV HEV Charger: Level 1, 2, and 3
• Electronic Shelf Label
• Energy Harvesting
• Ethernet Switch
• Femto Base Station
• Fingerprint and Iris Biometrics
• HVAC: Heating, Ventilating, and Air Conditioning
• High-Speed Data Acquisition and Generation
• Hydraulic Valve
• IP Phone: Wired and Wireless
• Infusion Pump
• Intelligent Occupancy Sensing
• Motor Control: Brushed DC, Brushless DC, Low-
Voltage, Permanent Magnet, and Stepper Motor
• Point-to-Point Microwave Backhaul
• Power Bank Solutions
• Power Line Communication Modem
• Power Over Ethernet (PoE)
• Power Quality Meter
• Power Substation Control
• Private Branch Exchange (PBX)
• Programmable Logic Controller
• RFID Reader
• Refrigerator
• Signal or Waveform Generator
• Software Defined Radio (SDR)
• Washing Machine: High-End and Low-End
• X-ray: Baggage Scanner, Medical, and Dental
3 Description
The LM317 device is an adjustable three-terminal
positive-voltage regulator capable of supplying more
than 1.5 A over an output-voltage range of 1.25 V to
37 V. It requires only two external resistors to set the
output voltage. The device features a typical line
regulation of 0.01% and typical load regulation of
0.1%. It includes current limiting, thermal overload
protection, and safe operating area protection.
Overload protection remains functional even if the
ADJUST terminal is disconnected.
Device Information(1)
PART NUMBER PACKAGE (PIN) BODY SIZE (NOM)
SOT (4)
6.50 mm × 3.50 mm
LM317
TO-220 (3)
TO-220 (3)
10.16 mm × 8.70 mm
10.16 mm × 8.59 mm
TO-263 (3)
10.18 mm × 8.41 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
4 Battery-Charger Circuit
LM317
RS
0.2 W
VI
INPUT OUTPUT
ADJUST
R1
240 W
R2
2.4 kW
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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