• LM317T/NOPB TO220-3
LM317T/NOPB TO220-3

LM317T/NOPB

Standard Regulator Pos 1.25V to 37V 1.5A 3-Pin(3+Tab) TO-220 Tube

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Overview of LM317T/NOPB

The LM317T/NOPB is a versatile adjustable linear voltage regulator IC capable of providing output voltages ranging from 1.2V to 37V. It is designed to be used in a wide range of applications where a stable and adjustable voltage source is required.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • ADJ: Adjustable pin for setting the output voltage.
  • OUT: Regulated output voltage.
  • IN: Input voltage.

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the LM317T/NOPB IC for a visual representation.

Key Features

  • Adjustable Output: Allows for a wide range of output voltages from 1.2V to 37V.
  • Low Dropout Voltage: Provides a low dropout voltage, ensuring efficient regulation even with small voltage differentials.
  • Internal Thermal Overload Protection: Includes internal thermal overload protection to prevent damage due to overheating.
  • Current Limiting: Incorporates current limiting to protect the IC and the connected circuit from overcurrent conditions.
  • Wide Operating Temperature Range: Can operate within a wide temperature range, making it suitable for various environments.

Note: For detailed technical specifications, please refer to the LM317T/NOPB datasheet.

Application

  • Power Supply Regulation: Ideal for voltage regulation in power supply circuits.
  • Battery Charging: Can be used in battery charging circuits to provide stable charging voltages.
  • Variable Voltage Source: Suitable for creating variable voltage sources for testing and prototyping.

Functionality

The LM317T/NOPB is a reliable and flexible voltage regulator IC that can be easily adjusted to provide a specific output voltage within the specified range. It is commonly used in electronic circuits requiring stable and adjustable power sources.

Usage Guide

  • IN and OUT Connection: Connect the input voltage to the IN pin and the load to the OUT pin.
  • Adjustment: Use an external resistor divider connected to the ADJ pin to set the desired output voltage.

Frequently Asked Questions

Q: What is the maximum output voltage of the LM317T/NOPB?
A: The LM317T/NOPB can provide a maximum output voltage of 37V.

Q: Is the LM317T/NOPB suitable for high-current applications?
A: While the LM317T/NOPB can handle moderate currents, for high-current applications, external pass transistors may be needed.

Equivalent

For similar functionalities, consider these alternatives to the LM317T/NOPB:

  • LM350: This is a higher current variant of the LM317, capable of handling higher output currents.
  • LT1084: A low dropout positive adjustable regulator that offers similar features to the LM317T/NOPB.

LM317T/NOPB

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Output options Adjustable Output Iout (max) (A) 1.5
Vin (max) (V) 40 Vin (min) (V) 3
Vout (max) (V) 37 Vout (min) (V) 1.2
Noise (µVrms) 35 Iq (typ) (mA) 5
Thermal resistance θJA (°C/W) 39 Rating Catalog, Military
Load capacitance (min) (µF) 0 Regulated outputs (#) 1
Accuracy (%) 5 PSRR at 100 KHz (dB) 40
Dropout voltage (Vdo) (typ) (mV) 2250 Operating temperature range (°C) 0 to 0, 0 to 125

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