on November 5th 80

Complete Guide to the LM323K Voltage Regulator

The LM323K is a powerful three-terminal positive voltage regulator designed to deliver a steady 5V output at currents up to 3A, making it an ideal choice for applications that demand stability and durability. This article explores the LM323K's basic features, practical uses, and the serious components that enhance its performance in various electronic circuits. From thermal overload protection to short-circuit safeguards, the LM323K's robust design supports reliable operation across diverse systems, including automotive, consumer electronics, and industrial applications. Whether maintaining consistent audio fidelity or ensuring power stability, the LM323K exemplifies dependable voltage regulation in today’s advanced electronics.

Catalog

Pin Configuration

LM323K Design Models

Footprint

3D Model

Overview of LM323K Voltage Regulator

The LM323K stands out with its unwavering 5 V output capability, harnessing advanced design and processing techniques to manage currents up to 3 A with remarkable efficiency. Equipped with robust protective mechanisms, it includes current limiting, power limiting, and thermal shutdown features. These protections contribute to the regulator’s steady and dependable functioning, echoing the resilience of smaller and trustworthy counterparts like the LM209.

Crafted to maintain high-level performance, the LM323K excels under varying input voltages, load changes, and diverse temperature conditions. These characteristics bolster its durability, making it a fitting selection for environments where stability is demanded despite external challenges. The dependability of this regulator arises from a calculated blend of engineering foresight and substantial practical experience obtained through thorough testing and usage.

The LM323K is widely utilized in sectors where preserving stable voltage is of great concern. Its implementation is notable in settings involving sensitive electronic devices, where its capacity to withstand power fluctuations becomes invaluable. Incorporating your feedback articulates a subtle yet remarkable focus on the device’s longevity and uniform performance.

Features

Feature	Description
Output Current	3:00 AM
Internal Current & Thermal Limiting	Yes
Typical Output Impedance	0.01 Ω
Minimum Input Voltage	7.5 V
Power Dissipation	30 W

Uses of LM323K

The LM323K voltage regulator is celebrated for delivering precise voltage outputs and maintaining dependable performance under various conditions. Its knack for ensuring narrow output voltage tolerances is used in systems that depend on consistent power delivery. Through this capability, it helps mitigate the adversity caused by voltage variations that frequently affect electronic devices. In actual applications, the role of precise voltage regulation shines brightly. In delicate electronic circuits, even minor voltage deviations can cause malfunctions or damage, making the LM323K's steely performance a shield of durability and long-lasting functionality.

Consumer Electronics

The consumer electronics domain reaps substantial benefits from the line and load regulation features of the LM323K. It finds its way into televisions, personal computers, and audio systems to not only keep operational efficiency on track but also safeguard internal components from potential harm due to voltage fluctuations. Incorporating voltage regulators like the LM323K thoughtfully and effectively often enhances device longevity and reliability. These are appealing attributes in a competitive market, where you can meticulously balance performance enhancement with cost management via component integration.

Communication Systems

The LM323K plays a major role in communication systems by ensuring that signal clarity and stability are maintained. It upholds the steady operation of routers, switches, and modems, thereby averting any data transmission disruptions. Within this framework, sustaining the seamless operation of communication systems is closely tied to the escalating demand for reliable internet connectivity. The integration of power regulation systems becomes increasingly requisite as remote communication embeds itself further into everyday life.

Industrial Applications

In the industrial world, the LM323K showcases sturdy performance, offering consistent power to machinery and equipment and diminishing the chance of operational hiccups. Its application in automation and control systems not only boosts production efficiency but also cuts down on maintenance expenses. Deploying it successfully in such settings often calls for an in-depth understanding of the unique power demands of specific industrial equipment. The LM323K emerges as a preferred solution, striking a balance between adaptability and reliability.

Substitutes

• LM317

• LM7805

Implementing the LM323K

To craft a stable 5 V output with the LM323K regulator, choosing and incorporating an input filter capacitor with a minimum capacity of 0.33µF is ultimate. In addition, an output capacitor of no less than 0.1µF should be part of the setup. These components are active in smoothing voltage fluctuations and ensuring consistent performance. It's advised to maintain the input voltage above 7.5 V, offering generous headroom for the regulator to deliver consistent output amid shifting load currents or input voltage shifts.

The LM323K is not confined to its traditional role as a simple voltage regulator; its versatility shines when additional elements like resistors are integrated. This allows the regulator to be expertly transformed into a constant current source—a valuable configuration in contexts that demand precise current management like LED lighting systems or battery charging units. Moreover, when an operational amplifier is synergized with the LM323K, the possibilities expand significantly. This combination unlocks variable voltage solutions, where adjusting the feedback loop within the Op-Amp circuit permits intricate tuning of the output voltage to address specific application needs, thereby amplifying the LM323K's flexibility in ever-evolving electrical scenarios.

Application Circuits Employing LM323K

Foundational Design for 3 A Voltage Regulation

Fine-tuning for Precise 5 V Output

Regulation of Adjustable Voltage Outputs

Boosted Current Output Coupled with Overload Protection

Technical Specifications

Type	Parameter
Mount	Through Hole
Mounting Type	Through Hole
Package / Case	TO-204AA, TO-3
Operating Temperature	0°C ~ 125°C
Packaging	Tube
JESD-609 Code	e3
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	2
ECCN Code	EAR99
Terminal Finish	Tin (Sn)
Max Power Dissipation	30W
Terminal Position	BOTTOM
Terminal Form	PIN/PEG
Number of Functions	1
Base Part Number	LM323
Pin Count	2
JESD-30 Code	O-MBFM-P2
Number of Outputs	1
Voltage - Input (Max)	20V
Output Voltage	5V
Output Type	Fixed
Max Output Current	3A
Output Configuration	Positive
Power Dissipation	30W
Quiescent Current	20mA
Output Voltage 1	5V
Number of Regulators	1
Min Input Voltage	7.5V
Protection Features	Over Current, Over Temperature
Dropout Voltage1-Nom	2.8V
Min Output Voltage	4.8V
Voltage Tolerance - Max	5%
Radiation Hardening	No
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free
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Packaging Details

Manufacturer

STMicroelectronics has carved out a reputation as a trailblazer in the semiconductor world, renowned for its cutting-edge System-on-Chip (SoC) innovations. These developments play a dominant role in moving forward a vast array of digital and analog applications. By skillfully combining numerous functions onto a solitary chip, STMicroelectronics not only boosts device performance but also promotes cost and spatial efficiency, aspects that resonate strongly in the fiercely competitive technology arena.

At the center of STMicroelectronics' achievements lies its profound expertise in SoC technology. SoCs are requisite in contemporary electronics, empowering devices to become more intelligent, faster, and energy-efficient. The labor-intensive process of integrating processors, memory, interfaces, and additional elements into a single silicon chip demands both technical prowess and innovative design visions. This sophisticated level of integration fosters reduced power consumption and lower heat emission, attributes basic for portable gadgets. For example, in the world of wearable technology, where dimensions and battery longevity stir notable your passions, the advantages of SoC technology are strikingly apparent.

Datasheet PDF

LM323K Datasheets:

LM323.pdf