L7912CV

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L7912CV

IC REG LINEAR -12V 1.5A TO220AB

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  • Mfr。パート #L7912CV
  • パッケージ TO-220-3
  • データシート
  • 在庫中7392

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仕様

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

概要

Description

The L7912CV is a voltage regulator integrated circuit (IC) from the 79xx series, which is designed to provide a stable output voltage. Specifically, the L7912CV provides a negative 12-volt output with a current output up to 1.5 amperes, making it suitable for various applications requiring a stable negative voltage supply. It is commonly used in power supply circuits to maintain voltage stability despite variations in input voltage or load current.
The IC features internal current limiting, thermal shutdown, and safe area protection, ensuring durability and reliability by preventing damage due to overheating or excessive current. It typically requires only a few external components, such as capacitors, to function effectively.
The L7912CV comes in a TO-220 package, which provides good heat dissipation, and can be mounted on a heatsink to further enhance thermal management. This device is used in numerous electronic applications, including consumer electronics, industrial equipment, and other systems requiring a regulated negative voltage.

Features

The L7912CV is a linear voltage regulator that provides a fixed output voltage of -12V. Key features include:
1. Output Current: It can deliver a continuous output current of up to 1.5A.
2. Input Voltage: Typically requires an input voltage 2-3 volts higher than the output voltage for proper regulation.
3. Thermal Protection: Includes built-in protection against overheating, ensuring reliable performance during high load conditions.
4. Short-Circuit Protection: Safeguards the device and connected circuits from potential damage due to short circuits.
5. Output Voltage Tolerance: Offers a regulated output with standard tolerance levels, usually around ±2%.
6. Dropout Voltage: Features a low dropout voltage, ensuring efficiency in regulation.
7. Package Options: Commonly available in TO-220 package, facilitating easy mounting and thermal management.
8. Application: Suitable for various applications, including power supply designs, battery chargers, and other electronic devices requiring stable voltage regulation.
These features make the L7912CV a robust choice for applications needing a negative voltage supply.

Package

The L7912CV is a negative voltage regulator from the L79 series, typically packaged in a TO-220 format. This package is designed for easy mounting and efficient heat dissipation, commonly used in various electronic applications for voltage regulation.

Pinout

The L7912CV is a three-terminal negative voltage regulator IC that provides a fixed output voltage of -12V. It is part of the 79xx series of voltage regulators, which are designed to provide a constant voltage output despite changes in input voltage or load conditions.
The L7912CV has three pins:
1. Input (Pin 1): This pin receives the unregulated input voltage that is to be regulated down to -12V. The input voltage should be more negative than -12V (typically up to -35V) for proper functioning.
2. Ground (Pin 2): This pin is connected to the ground of the circuit and serves as the reference point for the input and output voltages.
3. Output (Pin 3): This pin provides the regulated output voltage of -12V. It is connected to the load that requires a -12V power supply.
The L7912CV can supply a maximum output current of 1.5A, provided that adequate heat dissipation is ensured through proper heat sinking.

Manufacturer

The L7912CV is manufactured by STMicroelectronics. STMicroelectronics is a multinational electronics and semiconductor manufacturer. It is one of the world's largest semiconductor companies, known for designing and producing a wide range of semiconductor components and integrated circuits used in various electronic applications. Their product portfolio includes microcontrollers, microprocessors, sensors, and power management devices, among others. The company operates globally, serving diverse industries such as automotive, industrial, personal electronics, and communications.

Application

The L7912CV is a voltage regulator commonly used in various applications requiring a stable negative 12V power supply. Its application areas include power supply circuits in consumer electronics, industrial equipment, and communication devices. It's also used in DIY electronics projects, embedded systems, and any circuit requiring precise voltage regulation to protect sensitive components. Additionally, it can be found in automotive electronics and instrumentation that require reliable performance under varying input voltages.

Equivalent

The L7912CV is a negative voltage regulator that provides -12V output. Equivalent products include:
1. LM7912 by Texas Instruments
2. UA7912 by Fairchild Semiconductor (ON Semiconductor)
3. MC7912 by ON Semiconductor
4. KA7912 by Samsung Electronics
5. NJM7912 by New Japan Radio
These alternatives offer similar specifications and performance for applications requiring a -12V regulated output. Always check the datasheets for compatibility with your specific needs.

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出荷料参照(DHL/FedEx):

DHL の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は2〜5営業日です。

フェデックス: 配送費は25ドル〜40ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

UPS の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

TNT社: 配送費は25ドル〜65ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

EMS: 配送料金は30〜50ドル(0.5kg)の範囲で、推定配送時間は7〜15営業日です。

登録航空郵便: 配送費は2〜4ドル(0.1kg)で、推定配送時間は5〜20営業日です。

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