KA7812ETU

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KA7812ETU

IC REG LINEAR 12V 1A TO220-3

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規格

Package Tube,Tube
ProductStatus Obsolete
OutputConfiguration Positive
OutputType Fixed
NumberofRegulators 1
Voltage-Input(Max) 35V
Voltage-Output(Min/Fixed) 12V
VoltageDropout(Max) 2V @ 1A (Typ)
Current-Output 1A
Current-Quiescent(Iq) 8 mA
PSRR 71dB (120Hz)
ProtectionFeatures Over Temperature, Short Circuit
OperatingTemperature -40°C ~ 125°C
MountingType Through Hole
Package/Case TO-220-3

概述

Description

The KA7812ETU is a three-terminal positive voltage regulator that provides a stable output voltage of 12V with a current output capability of up to 1.5A. It is part of the 78xx series of fixed linear voltage regulators, which are widely used in various electronic applications for voltage regulation. The device is designed to offer high efficiency, good thermal performance, and reliable operation with built-in protection features such as current limiting, thermal shutdown, and safe area protection. These features help prevent damage due to overcurrent or excessive temperature during operation.
The KA7812ETU is typically used in power supply circuits where a stable 12V output is required, such as in consumer electronics, industrial equipment, and automotive applications. Its ease of use, requiring only two external capacitors for stability and noise reduction, makes it a popular choice for both hobbyists and professionals. As with other linear regulators, it is important to consider power dissipation and heat management in the design to ensure efficient and safe operation.

Features

The KA7812ETU is a voltage regulator IC designed to provide a stable 12V output from a higher input voltage. Key features of this component include:
1. Output Voltage: It delivers a fixed 12V output, making it suitable for various electronics applications requiring a stable voltage supply.
2. Input Voltage Range: The regulator can handle a wide range of input voltages, typically up to 35V, ensuring versatility in different circuit designs.
3. Current Capability: It can supply an output current of up to 1A, which is adequate for powering medium-power devices and circuits.
4. Thermal Overload Protection: The KA7812ETU includes built-in thermal protection to prevent overheating, enhancing the reliability and longevity of the IC.
5. Short-Circuit Protection: It features internal short-circuit limiting, safeguarding the regulator and connected components from damage due to overloads or faults.
6. Low Quiescent Current: The IC has low quiescent current requirements, which improves efficiency and reduces power consumption in standby modes.
7. Package Type: Often available in TO-220 or similar packages, facilitating easy mounting and heat dissipation.
These features make the KA7812ETU a robust choice for applications requiring fixed 12V regulation with reliability and protection features.

Package

The KA7812ETU is a linear voltage regulator in a TO-220 package. It provides a stable 12V output and is commonly used for voltage regulation in electronic circuits. The TO-220 package features three pins and is designed for easy mounting on a heat sink to dissipate heat effectively.

Pinout

The KA7812ETU is a linear voltage regulator IC with a fixed output voltage of 12V. It is part of the 78xx series of voltage regulators, which are commonly used to provide a stable output voltage for electronic circuits.
The KA7812ETU typically comes in a TO-220 package, which has three pins. The function of each pin is as follows:
1. Input (Pin 1): This is the pin where the unregulated input voltage is supplied. The input voltage should be higher than the desired output voltage for the regulator to function correctly, typically at least 14.5V for the KA7812ETU.
2. Ground (Pin 2): This pin is connected to the ground or zero voltage reference of the circuit. It is essential for completing the circuit and providing a reference point for the input and output voltages.
3. Output (Pin 3): This is the pin where the regulated 12V output voltage is provided. The output can be used to power various components and circuits that require a stable 12V supply.
The KA7812ETU is widely used in power supply circuits for its simplicity, reliability, and ability to provide a stable 12V output with minimal external components.

Manufacturer

The KA7812ETU is manufactured by ON Semiconductor, a company that specializes in designing and producing semiconductor components. ON Semiconductor, now known as onsemi, is a technology company that provides a wide range of products including power and signal management, logic, discrete, and custom devices. These components are used in various applications across automotive, industrial, cloud power, and IoT sectors. The company is known for its focus on energy-efficient innovations and solutions.

Application

The KA7812ETU is a voltage regulator integrated circuit used in various applications requiring a stable 12V output. Its primary application areas include power supply circuits for electronic devices, voltage regulation in battery chargers, and power management in embedded systems. It is also used in consumer electronics, automotive electronics, and industrial equipment to ensure consistent voltage levels and protect against fluctuations.

Equivalent

The KA7812ETU is a 12V voltage regulator. Equivalent products include the LM7812, L7812CV, MC7812, UA7812, and NTE7812. These alternatives generally share similar specifications, such as output voltage, current capability, and packaging, and can often be used interchangeably in circuits requiring a 12V linear voltage regulator. Always check the datasheets to ensure compatibility with your specific application.

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