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Product details

Parameters

Output options Adjustable Output Iout (Max) (A) 0.1 Vin (Max) (V) 40 Vin (Min) (V) 4.2 Vout (Max) (V) 38 Vout (Min) (V) 1.2 Noise (uVrms) 38 Iq (Typ) (mA) 0.05 Thermal resistance θJA (°C/W) 160 Approx. price (US$) 0.19 | 1ku Load capacitance (Min) (µF) 0 Rating Catalog Regulated outputs (#) 1 Features Accuracy (%) 3 PSRR @ 100 KHz (dB) 63 Dropout voltage (Vdo) (Typ) (mV) 1800 Operating temperature range (C) -40 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

DSBGA (YPB) 6 0 mm² 1.028 x 1.689 SOIC (D) 8 19 mm² 4.9 x 3.9 TO-92 (LP) 3 19 mm² 5.2 x 3.68 open-in-new Find other Linear regulators (LDO)

Features

  • Adjustable Output Down to 1.2 V
  • 100-mA Output Current
  • Capable of Handling up to 40V VIN
  • Line Regulation Typically 0.01% /V
  • Load Regulation Typically 0.1% /A
  • No Output Capacitor Required (†)
  • Current Limit Constant With Temperature
  • Eliminates the Need to Stock Many Voltages
  • Standard 3-Lead Transistor Package
  • 80-dB Ripple Rejection
  • Available in 3-Pin TO-92, 8-Pin SOIC, or 6-pin DSBGA Packages
  • Output is Short-Circuit Protected
  • See AN-1112 (SNVA009) for DSBGA Considerations

All trademarks are the property of their respective owners.

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Description

The LM317L-N is an adjustable positive voltage regulator capable of supplying 100 mA over a 1.2-V to 37-V output range. The LM317L-N is easy to use and requires only two external resistors to set the output voltage. Both line and load regulation are better than standard fixed regulators. The LM317L-N is available packaged in a standard, easy-to-use
TO-92 transistor package.

The LM317L-N offers full overload protection. Included on the chip are current limit, thermal overload protection, and safe area protection. Normally, no capacitors are required unless the device is situated more than 6 inches from the input filter capacitors, in which case an input bypass is required.

The LM317L-N uses floating topology and sees only the input-to-output differential voltage, therefore supplies of several hundred volts can be regulated, provided the maximum input-to-output differential is not exceeded. The device makes a simple adjustable switching regulator, a programmable output regulator, or by connecting a fixed resistor between the adjustment and output, the LM317L-N can be used as a precision current regulator.

The LM317L-N is available in a standard 3-pin TO-92 transistor package, the 8-pin SOIC package, and 6-pin DSBGA package. The LM317L-N is rated for operation over a −40°C to 125°C range.

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Technical documentation

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Type Title Date
* Datasheet LM317L-N Wide VIN 100-mA Adjustable Voltage Regulator datasheet (Rev. L) Jan. 19, 2018
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
Application notes LDO PSRR Measurement Simplified (Rev. A) Aug. 09, 2017
Technical articles LDO basics: noise – part 1 Jun. 14, 2017
Application notes Linear power for automated industrial systems Jan. 09, 2015
Application notes AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) May 06, 2013
Application notes AN-181 3-Terminal Regulator is Adjustable (Rev. B) May 05, 2013
Application notes AN-182 Improving Power Supply Reliability with IC Power Regulators (Rev. B) May 05, 2013
More literature Die D/S LM317L MDA 3-Terminal Adj Regulator Sep. 20, 2012
Application notes TO-92 Packing Options / Ordering Instructions (Rev. A) Jun. 23, 2010

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

CAD/CAE symbols

Package Pins Download
DSBGA (YPB) 6 View options
SOIC (D) 8 View options
TO-92 (LP) 3 View options

Ordering & quality

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