The STMicroelectronics LM723CD is a versatile voltage regulator that is widely used in various electronic applications. It is designed to provide a stable output voltage and can be configured for both linear and switching regulation. The LM723CD is particularly valued for its reliability, ease of use, and ability to handle a wide range of input voltages. Below is a detailed introduction to the LM723CD, including its specifications and parameters.

## Overview

The LM723CD is a linear voltage regulator that can be used to regulate output voltages from 1.2V to 37V. It is capable of delivering output currents up to 3A, making it suitable for a variety of applications, including power supplies, battery chargers, and other electronic devices requiring stable voltage regulation. The device features built-in thermal overload protection and short-circuit protection, ensuring safe operation under various conditions.

## Key Features

1. Wide Input Voltage Range: The LM723CD can accept input voltages from 4.5V to 40V, allowing it to be used in a variety of power supply configurations.

2. Adjustable Output Voltage: The output voltage can be easily adjusted using external resistors, providing flexibility for different applications.

3. High Output Current: The regulator can deliver output currents up to 3A, making it suitable for powering larger loads.

4. Thermal Overload Protection: The LM723CD includes built-in thermal protection, which automatically reduces the output current if the device overheats, preventing damage.

5. Short-Circuit Protection: The device features short-circuit protection, ensuring that it can withstand accidental short circuits without failure.

6. Low Dropout Voltage: The LM723CD has a low dropout voltage, which allows it to maintain regulation even when the input voltage is only slightly higher than the output voltage.

7. Compact Package: The device is available in a 14-pin DIP (Dual In-line Package) or a 14-pin SOIC (Small Outline Integrated Circuit) package, making it easy to integrate into various circuit designs.

## Specifications

- Model: LM723CD
- Type: Adjustable Linear Voltage Regulator
- Input Voltage Range: 4.5V to 40V
- Output Voltage Range: 1.2V to 37V (adjustable)
- Output Current: Up to 3A
- Dropout Voltage: Typically 1.5V at 3A load
- Line Regulation: 0.01%/V (typical)
- Load Regulation: 0.1% (typical)
- Temperature Range:
- Operating: 0°C to 125°C
- Storage: -65°C to 150°C
- Thermal Resistance (junction to case): 5°C/W (typical)
- Thermal Resistance (junction to ambient): 50°C/W (typical)
- Protection Features:
- Thermal overload protection
- Short-circuit protection
- Package Type:
- 14-Pin DIP
- 14-Pin SOIC
- Weight: Approximately 1.5 grams

## Applications

The STMicroelectronics LM723CD is suitable for a wide range of applications, including:

- Power Supplies: Used in linear power supplies to provide stable output voltages for various electronic devices.
- Battery Chargers: Ideal for charging batteries, as it can be configured to provide the necessary charging voltage and current.
- Voltage Regulation: Commonly used in circuits requiring precise voltage regulation, such as audio equipment and instrumentation.
- Embedded Systems: Suitable for powering microcontrollers and other embedded systems that require stable voltage levels.

## Conclusion

The STMicroelectronics LM723CD is a reliable and versatile linear voltage regulator that offers a wide range of features and specifications suitable for various applications. Its ability to provide adjustable output voltages, high output current, and built-in protection features makes it an excellent choice for engineers and designers looking to implement stable power solutions in their electronic projects. Whether used in power supplies, battery chargers, or other voltage regulation applications, the LM723CD stands out as a dependable component in modern electronic design.