LM317

AKTIV

Einstellbarer linearer Spannungsregler, 1,5 A, 40 V

Produktdetails

Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 40 Vin (min) (V) 3 Vout (max) (V) 37 Vout (min) (V) 1.25 Noise (µVrms) 38 Iq (typ) (mA) 5 Thermal resistance θJA (°C/W) 24 Rating Catalog Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Accuracy (%) 5 PSRR at 100 KHz (dB) 38 Dropout voltage (Vdo) (typ) (mV) 2000 Operating temperature range (°C) 0 to 125
Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 40 Vin (min) (V) 3 Vout (max) (V) 37 Vout (min) (V) 1.25 Noise (µVrms) 38 Iq (typ) (mA) 5 Thermal resistance θJA (°C/W) 24 Rating Catalog Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Accuracy (%) 5 PSRR at 100 KHz (dB) 38 Dropout voltage (Vdo) (typ) (mV) 2000 Operating temperature range (°C) 0 to 125
SOT-223 (DCY) 4 45.5 mm² 6.5 x 7 TO-220 (KCS) 3 46.228 mm² 10.16 x 4.55 TO-263 (KTT) 3 154.8384 mm² 10.16 x 15.24
  • 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
  • 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

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.

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.

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Technische Dokumentation

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Typ Titel Datum
* Data sheet LM317 3-Terminal Adjustable Regulator datasheet (Rev. Y) PDF | HTML 29 Apr 2020
Application note LDO Noise Demystified (Rev. B) PDF | HTML 18 Aug 2020
Application note A Topical Index of TI LDO Application Notes (Rev. F) 27 Jun 2019
Application note Accurate Thermal Calculations on the Back of a Napkin 03 Jun 2019
Application note Fundamental Theory of PMOS LDO Voltage Regulators (Rev. A) 17 Aug 2018
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 21 Mär 2018
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 Aug 2017
Technical article Designing an IoT modular light PDF | HTML 17 Jun 2016
Technical article How to create power solutions: solar power PDF | HTML 19 Jan 2016
Application note A Topical Index of TI Supply Voltage Supervisor (SVS) Application Notes 15 Jun 2015
Application note Linear power for automated industrial systems 09 Jan 2015
Analog Design Journal Techniques for accurate PSRR measurements 28 Okt 2013
Application note AB-12 Wide Adjustable Range PNP Voltage Regulator (Rev. B) 06 Mai 2013
Application note AN-1028 Maximum Power Enhancement Techniques for Power Packages (Rev. B) 06 Mai 2013
Application note AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) 06 Mai 2013
Application note AN-42 IC Provides On-Card Regulation for Logic Circuits (Rev. B) 06 Mai 2013
Application note AN-178 Applications for an Adjustable IC Power Regulator (Rev. B) 05 Mai 2013
Application note AN-182 Improving Power Supply Reliability with IC Power Regulators (Rev. B) 05 Mai 2013
Application note Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A) 05 Mai 2013
Application note AN-1482 LDO Regulator Stability Using Ceramic Output Capacitors (Rev. A) 25 Apr 2013
Application note AN-1061 Power Conversion in Line-Powered Equipment (Rev. B) 23 Apr 2013
Application note High-Efficiency Reg has Low Drop-Out Voltage (Rev. B) 23 Apr 2013
Application note AN-1950 Silently Powering Low Noise Applications (Rev. A) 22 Apr 2013
Application note LDO Performance Near Dropout 08 Okt 2010
Application note Linear and Switching Voltage Regulator Fundamental Part 1 21 Mär 2007
Application note A New Production Technique for Trimming Voltage Regulators 03 Okt 2002
Application note Adjustable 3-Terminal Regulator for Low-Cost Battery Charging Systems 03 Okt 2002
Application note High Stability Regulators 03 Okt 2002

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Gehäuse Pins Herunterladen
SOT-223 (DCY) 4 Optionen anzeigen
TO-220 (KCS) 3 Optionen anzeigen
TO-263 (KTT) 3 Optionen anzeigen

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