Startseite Energiemanagement Linear- und Low-Dropout-Regler (LDO)
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Energiemanagement
Linear- und Low-Dropout-Regler (LDO)

LM317L

AKTIV

Einstellbarer linearer Spannungsregler, 100 mA, 35 V

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Datenblatt

LM317L

AKTIV
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Produktdetails

Output options Adjustable Output Iout (max) (A) 0.1 Vin (max) (V) 35 Vin (min) (V) 3.75 Vout (max) (V) 32 Vout (min) (V) 1.2 Rating Catalog Noise (µVrms) 30 PSRR at 100 KHz (dB) 38 Iq (typ) (mA) 1.5 Thermal resistance θJA (°C/W) 52 Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Accuracy (%) 4 Dropout voltage (Vdo) (typ) (mV) 2000 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 0.1 Vin (max) (V) 35 Vin (min) (V) 3.75 Vout (max) (V) 32 Vout (min) (V) 1.2 Rating Catalog Noise (µVrms) 30 PSRR at 100 KHz (dB) 38 Iq (typ) (mA) 1.5 Thermal resistance θJA (°C/W) 52 Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Accuracy (%) 4 Dropout voltage (Vdo) (typ) (mV) 2000 Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² 4.9 x 6 SOT-89 (PK) 3 18.4275 mm² 4.5 x 4.095 TO-92 (LP) 3 19.136 mm² 5.2 x 3.68 TSSOP (PW) 8 19.2 mm² 3 x 6.4
  • Output voltage range (VO):
    • Adjustable 1.25V to 37V (for new chip)
    • Adjustable 1.25V to 32V (for legacy chip)
  • Output current: Up to 100mA
  • Accuracy:
    • Input regulation typically 0.01% per input voltage change
    • Output regulation typically 0.5%
  • Ripple rejection typically:
    • 80 dB at 120Hz
    • 65 dB at 100kHz
  • For higher output current requirements, see LM317M (500mA) and LM317 (1.5A)
  • Output voltage range (VO):
    • Adjustable 1.25V to 37V (for new chip)
    • Adjustable 1.25V to 32V (for legacy chip)
  • Output current: Up to 100mA
  • Accuracy:
    • Input regulation typically 0.01% per input voltage change
    • Output regulation typically 0.5%
  • Ripple rejection typically:
    • 80 dB at 120Hz
    • 65 dB at 100kHz
  • For higher output current requirements, see LM317M (500mA) and LM317 (1.5A)

The LM317L is an adjustable, 3-terminal, positive-voltage regulator capable of supplying up to 100 mA over an output-voltage range of 1.25V to 37V. The device is exceptionally easy to use and requires only two external resistors to set the output voltage.

For the legacy chip, the LM317LC series is characterized for the junction temperature range of 0°C to +125°C and the LM317LI device is characterized for the operating junction temperature range of –40°C to +125°C. For the new chip, the both LM317LC and LM317LI series are characterized for the junction temperature range of –40°C to +125°C.

The LM317L is an adjustable, 3-terminal, positive-voltage regulator capable of supplying up to 100 mA over an output-voltage range of 1.25V to 37V. The device is exceptionally easy to use and requires only two external resistors to set the output voltage.

For the legacy chip, the LM317LC series is characterized for the junction temperature range of 0°C to +125°C and the LM317LI device is characterized for the operating junction temperature range of –40°C to +125°C. For the new chip, the both LM317LC and LM317LI series are characterized for the junction temperature range of –40°C to +125°C.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet LM317L 100mA Adjustable Floating Voltage Regulator datasheet (Rev. F) PDF | HTML 19 Dez 2024
Application note Cost-Optimized, High-Performance Front-End Design for Analog Input Modules PDF | HTML 22 Jun 2022
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 LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 Aug 2017
Application note AB-12 Wide Adjustable Range PNP Voltage Regulator (Rev. B) 06 Mai 2013
Application note AN-103 LM340 Series Three Terminal Positive Regulators (Rev. A) 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-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 Packaging Limits Range of Linear Regulators 08 Mai 2010
Application note Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A) 04 Jun 2008
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
Application note Understanding the Terms and Definitions of LDO Voltage Regulators 21 Okt 1999

Design und Entwicklung

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Simulationsmodell

LM317L PSpice Transient Model

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LM317L Unencrypted PSpice Transient Model

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Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
SOIC (D) 8 Ultra Librarian
SOT-89 (PK) 3 Ultra Librarian
TO-92 (LP) 3 Ultra Librarian
TSSOP (PW) 8 Ultra Librarian
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