• LM109H TO-3
LM109H TO-3

LM109H

Standard Regulator Pos 5.05V 1A 3-Pin TO-39 Bulk

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  • Part Number : LM109H

  • Package/Case : TO-3

  • Brands : TI

  • Components Categories : Voltage Regulators - Linear

  • Datesheet : LM109H DataSheet (PDF)

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Overview of LM109H

The LM109H is a precision voltage regulator IC designed to provide stable and accurate voltage output for various electronic circuits and applications. With its high level of precision and low dropout voltage, the LM109H is a reliable choice for voltage regulation needs.

Pinout

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

  • VOUT: Output Voltage
  • VIN: Input Voltage
  • ADJ: Adjustment Pin
  • GND: Ground

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the LM109H IC for a visual representation.

Key Features

  • Precision Voltage Regulation: The LM109H offers high precision voltage regulation for stable output voltage.
  • Low Dropout Voltage: With low dropout voltage characteristics, this IC maintains regulation even when the input voltage is close to the output voltage.
  • Thermal Shutdown Protection: Includes thermal shutdown protection to prevent the IC from overheating under high load conditions.
  • Wide Operating Temperature Range: Operates effectively over a wide temperature range, making it suitable for various environments.

Note: For detailed technical specifications, please refer to the LM109H datasheet.

Application

  • Power Supply Regulation: Ideal for regulating power supplies in circuits requiring stable voltage output.
  • Instrumentation: Suitable for use in precision instrumentation applications where accurate voltage regulation is critical.
  • Automotive Electronics: Used in automotive electronics for voltage regulation in various vehicle systems.

Functionality

The LM109H is designed to ensure a precise and steady voltage output, making it essential for maintaining stable operation in electronic circuits requiring regulated power.

Usage Guide

  • Input Voltage: Connect VIN (Pin 2) to the input voltage source.
  • Output Voltage: Obtain the regulated output voltage at VOUT (Pin 1).
  • Adjustment: Use the ADJ (Adjusment Pin) to fine-tune the output voltage if necessary.

Frequently Asked Questions

Q: What is the dropout voltage of the LM109H?
A: The LM109H has a low dropout voltage, typically around 1V, ensuring stable regulation even with small input-output differentials.

Q: Is the LM109H suitable for high-precision applications?
A: Yes, the LM109H is designed for precision voltage regulation, making it ideal for high-precision electronic circuits and systems.

Equivalent

For similar functionalities, consider these alternatives to the LM109H:

  • LM317: A popular adjustable voltage regulator IC offering precise voltage regulation and flexibility in output voltage settings.
  • LM7805: A fixed 5V voltage regulator IC with high accuracy and reliability for powering various electronic devices.

Specifications

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

Source Content uid LM109H Pbfree Code Yes
Rohs Code Yes Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC Part Package Code TO-39
Package Description TO-39, CAN3/4,.2 Pin Count 3
Reach Compliance Code compliant ECCN Code EAR99
HTS Code 8542.39.00.01 Samacsys Manufacturer Texas Instruments
Adjustability FIXED Dropout Voltage1-Nom 3 V
Input Voltage Absolute-Max 35 V Input Voltage-Max 35 V
Input Voltage-Min 7.1 V JESD-30 Code O-MBCY-W3
JESD-609 Code e4 Length 8.255 mm
Line Regulation-Max 0.05% Load Regulation-Max 0.05%
Moisture Sensitivity Level 1 Number of Functions 1
Number of Outputs 1 Number of Terminals 3
Operating Temperature TJ-Max 150 °C Operating Temperature TJ-Min -55 °C
Operating Temperature-Max 150 °C Operating Temperature-Min -55 °C
Output Current1-Max 1 A Output Voltage1-Max 5 V
Output Voltage1-Min 5 V Output Voltage1-Nom 5 V
Package Body Material METAL Package Code TO-39
Package Equivalence Code CAN3/4,.2 Package Shape ROUND
Package Style CYLINDRICAL Qualification Status Not Qualified
Regulator Type FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR Surface Mount NO
Technology BIPOLAR Terminal Finish GOLD
Terminal Form WIRE Terminal Pitch 4.699 mm
Terminal Position BOTTOM Voltage Tolerance-Max 8%
Width 8.255 mm

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