L7818CV

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L7818CV

+BOM

IC REG LINEAR 18V 1.5A TO220AB

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Specifications

Attribute Value
Package / Case Tube
Part Status Active
Output Configuration Positive
Output Type Fixed
Number of Regulators 1
Voltage - Input (Max) 35V
Voltage - Output (Min/Fixed) 18V
Voltage Dropout (Max) 2V @ 1A (Typ)
Current - Output 1.5A
Current - Quiescent (Iq) 8 mA
PSRR 53dB (120Hz)
Protection Features Over Temperature, Short Circuit
Operating Temperature 0°C ~ 125°C
Mounting Type Through Hole

Overview

Description

L7818CV is likely a course code, possibly for a class offered at an educational institution. Given the alphanumeric structure, it may be a specialized course, potentially within a graduate or advanced undergraduate program. The "L" could denote a specific department or program, such as Law or Literature, while the numbers and letters following it might indicate the course level and sequence.
To effectively introduce the course, consult the syllabus or official course description provided by the institution. This document typically outlines key details such as the course title, objectives, main topics, prerequisites, and instructor information. It may also detail the format of the class, such as whether it includes lectures, discussions, labs, or online components, and any required materials or textbooks.
For the most accurate and specific information, it is advisable to contact the relevant department or instructor directly, as they can provide insights into the course's content, focus, and expectations.

Equivalent

The L7818CV is a three-terminal positive voltage regulator that provides a fixed output voltage of 18V. Equivalent products to the L7818CV include:
1. LM7818 by Texas Instruments
2. MC7818 by ON Semiconductor
3. UA7818 by Fairchild Semiconductor
4. KA7818 by Samsung
5. NTE966 by NTE Electronics
These alternatives offer similar functionality and specifications, suitable for use in various voltage regulation applications.

Features

The L7818CV is a voltage regulator from the 78xx series, commonly used in electronic circuits for voltage regulation. Its key features include:
1. Output Voltage: It provides a fixed output voltage of 18V, suitable for applications requiring this specific voltage level.
2. Output Current: Can supply up to 1.5A of load current, making it suitable for medium power applications.
3. Thermal Overload Protection: Includes a thermal shutdown feature to prevent damage due to overheating.
4. Short-circuit Protection: Protects against overcurrent conditions by limiting the output current.
5. Safe Operating Area Protection: Ensures reliable operation within specified conditions.
6. Input Voltage: Requires a higher input voltage than the output, typically a minimum of 20V for proper regulation.
7. Dropout Voltage: Generally around 2V, which is the minimum difference between input and output voltage for it to regulate properly.
This component is widely used in power supplies, battery chargers, and other electronic devices needing stable output voltage.

Pinout

The L7818CV is a three-terminal positive voltage regulator. It is part of the LM78xx series which provides a fixed output voltage. Specifically, the L7818CV provides a +18V output. The pin count and functions for the L7818CV are as follows:
1. Pin 1 (Input): This is the input terminal where the unregulated input voltage is applied. The input voltage must be higher than the desired output voltage, typically by at least 2-3 volts, to ensure proper regulation.
2. Pin 2 (Ground/Common): This pin is connected to the ground reference of both the input and output voltages. It serves as the common ground path for the regulator and the load.
3. Pin 3 (Output): This is the output terminal which provides the regulated +18V output voltage. It is connected to the load.
The L7818CV typically requires external capacitors for stability and noise reduction, with a capacitor on the input side (usually 0.33µF) and another on the output side (commonly 0.1µF).

Manufacturer

The L7818CV is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of electronic components and systems. They are known for producing integrated circuits and discrete devices for various applications, including automotive, industrial, personal electronics, and telecommunications. The company is headquartered in Geneva, Switzerland, and is recognized as one of the leading semiconductor companies worldwide, serving a diverse array of industries with innovative and sustainable solutions.

Application

The L7818CV is a positive voltage regulator that provides a fixed output voltage of 18V. It is commonly used in various applications, such as:
1. Power Supply Circuits: Provides stable voltage output for electronic devices and systems.
2. Consumer Electronics: Used in televisions, set-top boxes, and audio equipment.
3. Industrial Controls: Regulates voltage for automation equipment and control systems.
4. Communication Equipment: Ensures reliable voltage levels in telecommunications devices.
5. Automotive Electronics: Powers components like infotainment systems and sensors.
6. Embedded Systems: Provides regulated power to microcontrollers and other components.
Its features like thermal protection and short-circuit protection make it suitable for a wide range of applications.

Package

The L7818CV is a voltage regulator from the 78xx series and is typically housed in a TO-220 package. This package type is a through-hole design that features three pins and an integrated heatsink for better thermal management.

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