LM317_16 Datasheet, PDF (1/32 Pages) Texas Instruments – 3-Terminal Adjustable Regulator

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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
R_S
0.2 W
V_I
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.