L7912CV-DG

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L7912CV-DG

IC REG LINEAR -12V 1.5A TO220

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規格

Package Tube
ProductStatus Active
OutputConfiguration Negative
OutputType Fixed
NumberofRegulators 1
Voltage-Input(Max) -35V
Voltage-Output(Min/Fixed) -12V
VoltageDropout(Max) 1.1V @ 1A (Typ)
Current-Output 1.5A
Current-Quiescent(Iq) 3 mA
PSRR 60dB (120Hz)
ProtectionFeatures Over Temperature, Short Circuit
OperatingTemperature 0°C ~ 125°C
MountingType Through Hole
Package/Case TO-220-3

概述

Description

The L7912CV-DG is a voltage regulator, specifically a negative voltage regulator from the 79xx series, which is designed to provide a stable output voltage. It typically delivers an output of -12 volts and can handle output currents up to 1.5 amperes. This component is essential for applications requiring a steady negative voltage supply.
Manufactured by STMicroelectronics, the L7912CV-DG features built-in protection mechanisms such as thermal shutdown, current limiting, and safe area protection, ensuring reliable operation even under stress conditions. Its design includes internal short-circuit current-limiting and a thermal shutdown circuit to prevent overheating, making it robust for various electronic applications.
The L7912CV-DG is commonly used in power supply circuits, particularly in dual-voltage power supplies where both positive and negative voltages are required. Its TO-220 package makes it suitable for both consumer and industrial applications. The device also requires external capacitors for stability, typically placed on the input and output terminals. Its compact size and reliable performance make it a popular choice in circuit designs requiring negative voltage regulation.

Features

The L7912CV-DG is a voltage regulator integrated circuit designed to provide a stable output voltage of -12V from a higher input voltage. Key features include:
1. Negative Voltage Regulation: It outputs a fixed -12V, ideal for dual power supply setups.
2. Output Current: Capable of delivering up to 1.5A of output current, suitable for medium power applications.
3. Thermal Overload Protection: Equipped with internal thermal shutdown features to prevent damage from overheating.
4. Short-Circuit Protection: Includes current limiting to protect against short-circuit conditions.
5. Safe Operating Area (SOA) Protection: Ensures device stability under various operating conditions.
6. Dropout Voltage: Typically requires a 2-3V higher input voltage than the output voltage for proper regulation.
7. Package Type: Commonly available in TO-220, which facilitates easy mounting and heat dissipation.
8. Reliability: Designed for high durability in various applications such as power supplies, battery chargers, and more.
The L7912CV-DG is widely used in electronic applications requiring negative voltage regulation due to its efficiency, reliability, and ease of use.

Package

The L7912CV-DG is a three-terminal negative voltage regulator typically available in a TO-220 package type. It is designed to provide a fixed output voltage of -12V with a maximum output current of 1.5A.

Pinout

The L7912CV-DG is a negative voltage regulator from the 79xx series, specifically designed to provide a stable -12V output. It is typically used in applications requiring a constant negative voltage.
Pin Count and Functions:
1. Pin 1 (Input): Connects to the unregulated input voltage. It is the pin where the negative voltage that needs regulation is supplied.

2. Pin 2 (Ground/COM): Common/Ground pin. It is connected to the ground of the system. This pin serves as a reference point for the input and output voltages.

3. Pin 3 (Output): Provides the regulated -12V output. This pin delivers the stabilized negative voltage to the load.
The L7912CV-DG is housed in a TO-220 package, which aids in efficient heat dissipation, making it suitable for applications with moderate current requirements.

Manufacturer

The L7912CV-DG is a voltage regulator manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of semiconductor products used in various microelectronic applications. Their product offerings cater to diverse markets, including automotive, industrial, personal electronics, communications equipment, and computers. The company is known for its innovation and leadership in semiconductor solutions, providing technologies that enable smarter driving, smarter devices, and more efficient power and energy management.

Application

The L7912CV-DG is a linear voltage regulator used primarily in applications that require a stable and reliable -12V output from a higher input voltage. Common application areas include power supply circuits for electronic devices, telecommunications equipment, and industrial control systems. It's also suitable for use in audio equipment, instrumentation, and anywhere precise negative voltage regulation is needed. Its thermal protection and short-circuit protection features make it ideal for robust and dependable power supply designs.

Equivalent

The L7912CV-DG is a voltage regulator that outputs -12V. Equivalent products include the LM7912 by Texas Instruments, MC7912 by ON Semiconductor, KA7912 by Fairchild Semiconductor, and NJM7912 by New Japan Radio (NJR). All these components serve a similar function of providing a regulated -12V output voltage while supporting comparable electrical characteristics.

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