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MC7905CT

Name: MC7905CT
Rating: 4.7 (12 reviews)

IC REG LINEAR -5V 1A TO220

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資料表 MC7905CT DataSheet
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規格

Part Status	Obsolete
Output Configuration	Negative
Output Type	Fixed
Number of Regulators	1
Voltage - Input (Max)	-35V
Voltage - Output (Min/Fixed)	-5V
Voltage Dropout (Max)	1.3V @ 1A (Typ)
Current - Output	1A
PSRR	70dB (120Hz)
Protection Features	Over Current, Over Temperature
Operating Temperature	0°C ~ 125°C
Mounting Type	Through Hole
Package / Case	TO-220-3
Supplier Device Package	TO-220
Base Product Number	MC7905

概述

Description

The MC7905CT is a linear voltage regulator designed to provide a stable output of -5V with a maximum output current of 1.5A. It is part of the 79xx series of voltage regulators, which are known for their negative voltage regulation capabilities. The device features over-temperature and over-current protection, ensuring reliable operation and durability in various applications.
Typical uses include powering negative voltage rails for operational amplifiers, digital logic, and other analog circuits. It requires external capacitors for stability, typically using a 0.33 µF capacitor at the input and a 0.1 µF capacitor at the output.
The MC7905CT is packaged in TO-220, making it suitable for heatsinking and thermal management in higher power applications. Its simple design and ease of use make it a popular choice for engineers looking to create stable negative voltage supplies in their electronic projects.

Features

The MC7905CT is a three-terminal negative voltage regulator that provides a fixed output voltage of -5V. Key features include:
1. Output Current: It can deliver up to 1A of output current.
2. Input Voltage Range: Accepts an input voltage of up to -25V.
3. Thermal Overload Protection: Incorporates built-in thermal shutdown to prevent overheating.
4. Short Circuit Protection: Offers short circuit protection to safeguard connected circuits.
5. Low Dropout Voltage: Ensures efficient operation with a typical dropout voltage around 0.6V at rated load.
6. TO-220 Package: Available in a TO-220 package, facilitating heat dissipation and easy mounting.
7. Temperature Stability: Operates over a wide temperature range, ensuring stability in various environments.
These features make the MC7905CT suitable for powering digital circuits, operational amplifiers, or any application requiring a reliable -5V supply.

Package

The MC7905CT is typically packaged in a TO-220 form factor, which is a metal tab package designed for heat dissipation, suitable for linear voltage regulation applications.

Pinout

The MC7905CT is a voltage regulator that provides a fixed output voltage of -5V. It typically comes in a 3-terminal TO-220 package. The pin count for the MC7905CT is 3.
The functions of the pins are as follows:
1. Input (Pin 1): This pin is where the negative input voltage is supplied. The input voltage must be more negative than -5V, typically ranging from -7V to -25V.
2. Ground (Pin 2): This is the common ground connection for the device.
3. Output (Pin 3): This pin delivers the regulated -5V output.
The device is designed for use in various applications requiring negative voltage regulation, ensuring stable performance under varying load conditions.

Manufacturer

The MC7905CT is manufactured by ON Semiconductor, a global semiconductor company. ON Semiconductor specializes in a wide range of electronic components, including power management, analog, logic, and sensor solutions, serving various industries such as automotive, industrial, and consumer electronics. The MC7905CT is a voltage regulator designed to provide a stable output voltage of -5V, commonly used in electronic circuit applications. As a leading semiconductor provider, ON Semiconductor focuses on innovation and sustainability, aiming to deliver efficient and advanced technology solutions for modern electronic systems.

Application

The MC7905CT is a voltage regulator that provides a fixed output of -5V. It is commonly used in applications such as powering negative voltage rails in analog circuits, creating biasing for operational amplifiers, and providing stable voltage outputs for digital and microcontroller circuits. It is also utilized in telecommunications and industrial equipment requiring a reliable negative voltage source.

Equivalent

The MC7905CT is a negative voltage regulator with a fixed output of -5V. Equivalent products include the LM7905, LM2995, and LP7905. These chips serve similar functions and provide comparable specifications in terms of output voltage and current. Always verify the specific characteristics and pin configurations to ensure compatibility for your application.