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CJ78L05

Name: CJ78L05
Rating: 4.7 (12 reviews)

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資料表 CJ78L05 DataSheet
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規格

Manufacturer	Jiangsu Changjing Electronics Technology Co., Ltd.
Package	SOT-89-3L
Operating Temperature	-40℃~+125℃@(Tj)
Voltage - Supply	30V
Output Type	Fixed
Number of Outputs	1
Output Current	100mA
Voltage Dropout	1.7V@(40mA)
Power Supply Rejection Ratio (PSRR)	49dB@(120Hz)
Output Voltage	5V
Output Configuration	Positive electrode

概述

Description

The CJ78L05 is a type of linear voltage regulator designed to provide a stable output voltage of 5 volts. It is part of the 78L series, which are low-dropout regulators (LDOs) suitable for applications requiring a reliable supply with minimal voltage drop. The device typically supports a maximum output current of around 100 mA, making it ideal for low-power applications, such as powering microcontrollers and sensors.
Key features include a wide input voltage range (usually up to 20V), built-in thermal overload protection, and short-circuit protection, ensuring robust performance and safety. It comes in various package types, including TO-92 and surface-mount options, facilitating integration into different circuit designs.
The CJ78L05 is favored for its ease of use, requiring only a few external capacitors for stabilization, making it suitable for hobbyist projects, as well as professional electronic designs.

Features

The CJ78L05 is a low-dropout voltage regulator designed to provide a stable output voltage of 5V. Key features include:
1. Input Voltage Range: Typically accepts input voltages from 7V to 30V.
2. Output Current: Capable of supplying up to 100mA of continuous output current.
3. Dropout Voltage: Low dropout voltage (around 0.2V at 100mA), allowing it to work effectively with lower input voltages.
4. Thermal Protection: Equipped with thermal shutdown to prevent overheating.
5. Short-Circuit Protection: Provides overcurrent protection to safeguard the device and connected components.
6. Compact Package: Available in different packages (such as TO-220, TO-92) for versatile applications.
7. Low Noise: Designed to produce minimal output noise, suitable for sensitive electronic circuits.
These features make the CJ78L05 ideal for various applications, including powering microcontrollers, sensors, and other low-power electronic devices.

Package

The CJ78L05 is typically packaged in a TO-220, TO-92, or similar package type, which allows for easy mounting on a heatsink. It is a low-dropout linear voltage regulator that provides a fixed output of 5V.

Pinout

The CJ78L05 is a low-dropout voltage regulator that typically comes in a 3-pin package. The pin configuration and their functions are as follows:
1. Input (Vin): This pin receives the input voltage, which must be higher than the output voltage (usually +5V) by a certain dropout voltage.
2. Ground (GND): This pin is connected to the ground or negative side of the power supply, serving as a reference point for the output voltage.
3. Output (Vout): This pin provides a regulated output voltage of +5V.
The CJ78L05 is commonly used in various electronic applications to provide a stable 5V output for powering circuits, making it suitable for use in microcontrollers, sensors, and other low-voltage devices. Its low dropout feature allows it to operate efficiently even with minimal input-output voltage differences.

Manufacturer

The CJ78L05 is a voltage regulator manufactured by various companies, with one of the notable manufacturers being ON Semiconductor. ON Semiconductor is a global supplier of semiconductor-based solutions, focusing on energy efficiency and providing a wide range of products, including power management, analog, and mixed-signal devices. The company serves multiple industries, such as automotive, industrial, and consumer electronics. They are known for their innovation in semiconductor technology, contributing to advancements in energy efficiency and connectivity solutions.

Application

The CJ78L05 is a low-dropout linear voltage regulator commonly used in various applications, including powering microcontrollers, sensors, and other low-power digital devices. It provides a stable 5V output from a higher voltage source, making it ideal for battery-operated equipment, automotive systems, and portable electronics. Its compact size and thermal performance also make it suitable for PCB designs in consumer electronics and industrial applications.

Equivalent

Equivalent products to the CJ78L05 voltage regulator include the 7805, LM7805, LM1117-5.0, LM317 (with appropriate resistors), and LM2937-5.0. These components also provide a regulated 5V output but may have different specifications for current capacity, dropout voltage, or package type. Always check datasheets for compatibility.