LM337HVT

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The LM337HVT is a voltage regulator integrated circuit (IC) capable of providing a regulated output voltage up to -37V

  • 製造商零件號 # : LM337HVT

  • 包裝/封裝: TO-220

  • 製造商: NS

  • 產品分類 : Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

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LM337HVT 數據表

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詳細說明

The LM337HVT is a voltage regulator integrated circuit (IC) manufactured by Texas Instruments. It is part of the LM337 series, designed for regulating negative voltage outputs. Here are some key details about the LM337HVT:1. **Regulation:** It regulates output voltage from -1.25V to -37V. 2. **Output Current:** The maximum output current capability is 1.5A.3. **Package Type:** It typically comes in a TO-220 package, which is a widely used through-hole package for voltage regulators.4. **Adjustable Output:** The output voltage can be adjusted using external resistors to set the desired voltage level.5. **Thermal Regulation:** The device incorporates thermal overload protection, safeguarding it from damage due to excessive heat.6. **Applications:** Common applications include providing a stable negative voltage supply in various electronic circuits, such as amplifiers, regulators, and industrial controls.7. **Temperature Range:** It operates reliably across a wide temperature range, typically from -40°C to 125°C.

主要特徵

  • High precision adjustable voltage regulator
  • Output voltage range: -1.2V to -37V
  • Output current up to 1.5A
  • Thermal shutdown protection
  • Short circuit protection
  • Adjustable output voltage with external resistors
  • Wide operating temperature range
  • Available in a TO-220 package

應用

  • Linear voltage regulator
  • Power management in industrial applications
  • Battery charging circuits
  • DC-DC converters
  • Audio amplifiers
  • Automotive electronics
  • Telecommunication systems
  • Instrumentation and measurement equipment
  • Safety critical systems
  • Medical devices

規格

以下是所選零件的基本參數,涉及零件的特性及其所屬類別。

Part Life Cycle Code Transferred Reach Compliance Code
ECCN Code EAR99 HTS Code ! 8542.39.00.01

數據表 PDF

數據表記錄了器件的特性、絕對最大額定值、應用等,這對於作為器件特定應用的整體指南大有裨益。

初步規格 LM337HVT PDF 下載

常見問題解答

What is LM337HVT?

The LM337HVT is a 3-terminal adjustable negative voltage regulator designed by Texas Instruments. It is capable of providing an output voltage range from -1.2V to -37V, making it suitable for a wide variety of applications including analog circuitry, test equipment, and industrial controls.

How Does LM337HVT Work?

The LM337HVT works by taking an input voltage and regulating it to a specified negative output voltage. It uses an adjustable voltage reference to compare the output voltage to an internal reference, and adjusts the pass element to maintain the desired output voltage. This makes it ideal for providing a stable and precise negative voltage supply for electronic circuits.

How Many Pins does LM337HVT have and What are the Functions of the Pinout Configuration?

The LM337HVT is housed in a 3-lead TO-220 package. The pinout configuration includes:

  • Input: The input voltage is supplied through this pin.
  • Output: The regulated negative output voltage is provided through this pin.
  • Adjust: An external voltage divider connected to this pin can be used to set the output voltage to the desired level.

What are the Pros and Cons of LM337HVT?

Pros:

  • Adjustable Output Voltage: The output voltage can be easily adjusted to the desired level using an external voltage divider.
  • Wide Output Voltage Range: Capable of providing a wide range of negative output voltages, making it versatile for different applications.
  • Thermal Shutdown: Includes thermal shutdown and current limiting protection features for enhanced system reliability and safety.
  • Simple Design: Requires minimal external components for operation, simplifying circuit design.

Cons:

  • Heat Dissipation: May require a heat sink to dissipate the heat generated due to voltage drop across the regulator.
  • Reverse Polarity Protection: As a negative voltage regulator, it does not provide protection against reverse polarity at the input.

Are There Any Equivalents/Alternatives to LM337HVT for Recommendation?

  • The LM7905 from Texas Instruments is a fixed -5V regulator that can serve as an alternative for specific voltage requirements.
  • Alternatives to the LM337HVT include the LT1376 from Linear Technology and the NCP1117 from ON Semiconductor.

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