LM317DCY

Voltage Regulator
3,855 有效庫存

LM317DCY

有效庫存3,855

Voltage Regulator

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LM317DCY 數據表

價格 (USD)

數量 單價 總價
1 $0.469 $0.47
10 $0.387 $3.87
60 $0.346 $20.76
120 $0.306 $36.72
480 $0.281 $134.88
1020 $0.268 $273.36

這些價格會受到市場波動的影響，需要提交報價才能取得最新價格。

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LM317DCY 詳細說明

The LM317DCY from Texas Instruments is a versatile and reliable adjustable voltage regulator suitable for a wide range of electronic applications. With an output voltage range of 1.25V to 37V and a maximum current capacity of 1.5A, this device can easily handle moderate power requirements. Its ability to maintain output voltage stability, even in the face of significant input voltage or load current changes, makes it a dependable choice for various voltage regulation needs

LM317DCY

主要特徵

  • The LM317DCY is a highly adjustable regulator
  • It provides output voltages from 1.25V to 37V
  • LM317DCY features built-in thermal regulation

應用

  • Power up your projects
  • Voltage control made easy
  • Stabilize your circuits
  • Regulate with precision
  • DIY voltage solutions
  • Efficient power management

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。

Output options Adjustable Output Iout (max) (A) 1.5
Vin (max) (V) 40 Vin (min) (V) 3
Vout (max) (V) 37 Vout (min) (V) 1.25
Noise (µVrms) 38 Iq (typ) (mA) 5
Thermal resistance θJA (°C/W) 24 Rating Catalog
Load capacitance (min) (µF) 0 Regulated outputs (#) 1
Accuracy (%) 5 PSRR at 100 KHz (dB) 38
Dropout voltage (Vdo) (typ) (mV) 2000 Operating temperature range (°C) 0 to 125

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 LM317DCY PDF 下載

常見問題解答

What is LM317DCY?

The LM317DCY is a versatile positive voltage regulator integrated circuit (IC) manufactured by Texas Instruments. It is commonly used to provide a stable and adjustable output voltage in various electronic circuits, such as power supplies, battery chargers, and voltage references.

How Does LM317DCY Work?

The LM317DCY operates as a linear regulator, maintaining a constant output voltage by adjusting the resistance between its adjustment pin and output. It compares the output voltage to an internal voltage reference and regulates the output accordingly. By setting the appropriate resistors, the output voltage can be adjusted to the desired level.

How Many Pins does LM317DCY have and What are the Functions of the Pinout Configuration?

The LM317DCY is available in a TO-220 package with 3 pins. The pinout configuration includes:

  • Input (VIN): The input voltage to be regulated.
  • Output (VOUT): The regulated output voltage.
  • Adjust (ADJ): The adjustment pin used to set the output voltage.

What are the Pros and Cons of LM317DCY?

Pros:

  • Wide Voltage Range: Can regulate output voltages from 1.25V to 37V.
  • Adjustable Output: The output voltage can be easily adjusted using external resistors.
  • Thermal Shutdown: Includes thermal shutdown and current limiting protection features.
  • Low Dropout Voltage: Operates with low dropout voltage, suitable for low input-output voltage differentials.
  • Simple Design: Easy to use and implement in various voltage regulation applications.

Cons:

  • Heat Dissipation: May require heat sinking for high current applications or large voltage differentials.
  • Inefficient for High Voltage Differences: Efficiency decreases for high voltage differentials and high output currents.
  • No Short-Circuit Protection: Lacks built-in short-circuit protection, requiring external circuitry for protection.

Are There Any Equivalents/Alternatives to LM317DCY for Recommendation?

  • The LM338 from Texas Instruments is a higher current version of the LM317 with similar functionality.
  • Alternatives to the LM317DCY include the L7805 from STMicroelectronics and the ADJ101 from Analog Devices.

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