• LM317H TO-CAN (NDT)-3
LM317H TO-CAN (NDT)-3

LM317H

Linear Voltage Regulators 1.5-A, 40-V, adjustable linear voltage regulator 3-TO 0 to 0

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  • Part Number : LM317H

  • Package/Case : TO-CAN (NDT)-3

  • Brands : TI

  • Components Categories : Voltage Regulators - Linear

  • Datesheet : LM317H DataSheet (PDF)

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Overview of LM317H

The LM317H is an adjustable 3-terminal positive voltage regulator IC capable of providing output voltages from 1.2V to 37V. It is designed to deliver up to 1.5A of output current with low dropout voltage, making it ideal for various voltage regulation applications.

Pinout

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

  • ADJ: Adjustable Output
  • OUT: Regulated Output
  • IN: Input Voltage

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the LM317H IC for a visual representation.

Key Features

  • Adjustable Output Voltage: The LM317H allows for easy adjustment of output voltage within the specified range.
  • High Output Current: Capable of providing up to 1.5A of output current, suitable for powering a wide range of loads.
  • Low Dropout Voltage: Features low dropout voltage for efficient power conversion and reduced heat dissipation.
  • Internal Short Circuit Protection: Includes internal short circuit protection for increased reliability and safety.
  • Thermal Overload Protection: Incorporates thermal overload protection to prevent IC damage under high-temperature conditions.

Note: For detailed technical specifications, please refer to the LM317H datasheet.

Application

  • Variable Power Supply: Ideal for constructing adjustable voltage power supplies for electronics projects.
  • Battery Charger: Suitable for designing battery chargers with adjustable output voltages.
  • Voltage Regulator: Used as a voltage regulator in various circuit applications requiring stable output voltage.

Functionality

The LM317H is a versatile voltage regulator IC that offers adjustable output voltage and high current capability. It provides stable and reliable voltage regulation for different electronic devices and circuits.

Usage Guide

  • Input Voltage: Connect the IN pin to the input voltage source.
  • Output Voltage Adjustment: Use the ADJ pin to adjust the output voltage as needed.
  • Output Load: Connect the OUT pin to the load requiring regulated voltage.

Frequently Asked Questions

Q: What is the maximum output voltage range of the LM317H?
A: The LM317H can provide output voltages ranging from 1.2V to 37V, depending on the resistor values in the circuit.

Q: Does the LM317H require heatsinking for operation?
A: Heatsinking is recommended for the LM317H, especially when operating at higher input-to-output voltage differentials and current levels to dissipate heat effectively.

Equivalent

For similar functionalities, consider these alternatives to the LM317H:

  • LM338: A higher current variant of the LM317H offering increased output current capability.
  • LM350: This IC provides a higher output voltage range compared to the LM317H, suitable for applications requiring higher voltages.

LM317H

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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