LM317LM/NOPB Part Information

Details for LM317LM/NOPB by Texas Instruments

Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators

Part Description

The LM317L-N is an adjustable 3-terminal 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. In addition to higher performance than fixed regulators, the LM317L-N offers full overload protection. Included on the chip are current limit, thermal overload protection, and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected. 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. An optional output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios, which are difficult to achieve with standard 3-terminal regulators. Besides replacing fixed regulators, the LM317L-N is useful in a wide variety of other applications. Because the regulator is floating and sees only the input-tooutput differential voltage, supplies of several hundred volts can be regulated, provided the maximum input-to-output differential is not exceeded. The LM317L-N 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. Supplies with electronic shutdown can be achieved by clamping the adjustment terminal to ground which programs the output to 1.2 V, where most loads draw little current. The LM317L-N is available in a standard 3-pin TO-92 transistor package, the 8-pin SOIC package, and 6pin DSBGA package. The LM317L-N is rated for operation over a −40°C to 125°C range.

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Part Features

  • 100-mA Output Current
  • 80-dB Ripple Rejection
  • Adjustable Output Down to 1.2 V
  • Available in 3-Pin TO-92, 8-Pin SOIC, or 6-pin DSBGA Packages
  • Current Limit Constant With Temperature
  • Eliminates the Need to Stock Many Voltages
  • Line Regulation Typically 0.01% V
  • Load Regulation Typically 0.1%
  • Output is Short-Circuit Protected
  • See AN-1112 (SNVA009) for DSBGA
  • Standard 3-Lead Transistor Package

Part Specifications

Fixed Output Voltage Nom. -
Adjustable Output Voltage Min 1.2V
Adjustable Output Voltage Max 37V
Input Voltage Min 5V
Input Voltage Max 35V
Product Range -
Output Current 100mA
Output Type Adjustable
Linear Regulator Case Style SOIC
No. of Pins 8Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
No. of Outputs 1Outputs
Output Voltage Max 37V
Output Voltage Min 1.2V
Termination Type Surface Mount Device
Voltage Regulator Type Adjustable Positive
RoHS Compliant

Alternative Part Descriptions

  • Voltage regulator,LM317LM 37V | RS Components
  • IC, V REG, LINEAR, ADJ, SMD; Fixed Output Voltage Nom.:-; Adjustable Output Voltage Min:1.2V; Adjustable Output Voltage Max:37V; Input Voltage Min:5V; Input Voltage Max:35V; Product Range:-; Output Current:100mA; Output RoHS Compliant: Yes | Newark Electronics
  • 100-mA, 40-V, high-PSRR, adjustable linear voltage regulator | Texas Instruments
  • Linear voltage regulator [Texas Instruments] LM317LM/NOPB Linear voltage regulator | Distrelec

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