L7808ABV

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L7808ABV

+BOM

IC REG LINEAR 8V 1.5A TO220AB

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Specifications

Attribute Value
Package Tube
ProductStatus Active
OutputConfiguration Positive
OutputType Fixed
NumberofRegulators 1
Voltage-Input(Max) 35V
Voltage-Output(Min/Fixed) 8V
VoltageDropout(Max) 2V @ 1A (Typ)
Current-Output 1.5A
Current-Quiescent(Iq) 6 mA
PSRR 62dB (120Hz)
ProtectionFeatures Over Temperature, Short Circuit
OperatingTemperature -40°C ~ 125°C
MountingType Through Hole
Package/Case TO-220-3

Overview

Description

The L7808ABV is a fixed-voltage linear voltage regulator integrated circuit (IC) designed to provide a stable 8V output from a higher input voltage. It is part of the 78xx series of voltage regulators and is commonly used in power supply applications. The device can deliver up to 1.5A of output current with excellent line and load regulation characteristics.
Key features of the L7808ABV include built-in protection mechanisms such as thermal shutdown, current limiting, and safe area protection, which enhance its reliability and prevent damage due to overheating or overcurrent conditions. The IC typically requires only two external capacitors for stable operation and minimal external components.
The L7808ABV is housed in a TO-220 package, which provides effective heat dissipation. It is widely used in various electronic projects and applications where a steady 8V is needed, such as in microcontroller-based systems, communication devices, and consumer electronics.

Equivalent

The L7808ABV is a voltage regulator that outputs 8V. Equivalent products include the LM7808 from Texas Instruments, MC7808 from ON Semiconductor, KA7808 from Fairchild Semiconductor, and NTE9608 from NTE Electronics. These components are generally interchangeable, offering similar performance characteristics such as output voltage and current capacity, but it's essential to check their datasheets for specific parameters and pin configurations to ensure compatibility with your application.

Features

The L7808ABV is a fixed-voltage linear voltage regulator designed to provide a stable output voltage of 8V. Key features include:
1. Output Current: It can deliver up to 1.5A of output current, suitable for driving various loads.
2. Thermal Protection: It includes thermal shutdown to prevent damage from overheating.
3. Short-circuit Protection: The device offers protection against output short circuits, enhancing reliability.
4. Dropout Voltage: The regulator typically has a dropout voltage of around 2V, requiring input voltage above this to maintain regulation.
5. Output Voltage Tolerance: Offers a tolerance typically within ±2% of the nominal output voltage.
6. Pin Configuration: It generally comes in a TO-220 package with three pins: input, output, and ground.
7. Low Noise: Provides good performance in terms of output noise, suitable for sensitive applications.
8. Wide Input Voltage Range: Can operate with input voltages higher than the output voltage, usually up to 35V.
These features make the L7808ABV suitable for a variety of applications requiring regulated 8V power supply with moderate current needs.

Pinout

The L7808ABV is a three-terminal positive voltage regulator. It provides a fixed output voltage of 8V with a maximum output current of 1.5A. The pin count and their functions are as follows:
1. Input (Pin 1): This is where the unregulated input voltage is applied. It should be higher than 8V, but within the specified input voltage range of the regulator.
2. Ground (Pin 2): This is the common ground pin for both the input and output.
3. Output (Pin 3): This pin provides the regulated 8V output voltage.
The L7808ABV is a part of the 78xx series of voltage regulators and is used primarily for providing a stable output voltage in various electronic circuits. It features protection against overcurrent, short circuits, and thermal overload, ensuring reliability and safety in operation.

Manufacturer

The L7808ABV is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of semiconductor products and solutions. The company serves various sectors, including automotive, industrial, personal electronics, computer, and communication equipment. Known for its innovation in technology and electronics, STMicroelectronics is one of the leading players in the semiconductor industry, providing products that support applications across the spectrum of electronics.

Application

The L7808ABV is a linear voltage regulator commonly used in various electronic applications. Its primary role is to provide a stable 8V output from higher voltage inputs, making it ideal for:
1. Power Supply Design: Used in circuits requiring a stable 8V supply, such as microcontroller-based systems and electronic projects.
2. Consumer Electronics: Powers devices like radios, televisions, and audio equipment.
3. Automotive Applications: Supplies regulated power for vehicle electronics.
4. Industrial Equipment: Ensures consistent voltage levels in machinery and control systems.
5. Communication Devices: Supports reliable operation in transmitters and receivers.
These regulators are valued for their simplicity, low noise output, and reliable thermal performance.

Package

The L7808ABV is typically available in a TO-220 package. This package type is commonly used for power semiconductor devices and features three leads, suitable for through-hole mounting, providing a balance of good heat dissipation and easy handling.

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