STMicroelectronics
Afbeelding kan een representatie zijn.
Zie specificaties voor productdetails.
LD1117V50
Details bekijken DataSheets

LD1117V50

Product Overview

Category

The LD1117V50 belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

  • Low dropout voltage
  • Output current up to 800 mA
  • Adjustable output voltage
  • Thermal overload protection
  • Short-circuit protection

Package

The LD1117V50 comes in a TO-220 package, which is a widely used through-hole package for power semiconductors.

Essence

The essence of LD1117V50 lies in its ability to provide stable and regulated voltage output in various electronic applications.

Packaging/Quantity

Typically, the LD1117V50 is available in reels or tubes, with quantities varying depending on the manufacturer's specifications.

Specifications

  • Input Voltage Range: 4.4 V to 15 V
  • Output Voltage Range: 1.25 V to 13.8 V
  • Dropout Voltage: 1.2 V (typical)
  • Output Current: Up to 800 mA
  • Line Regulation: 0.04% (typical)
  • Load Regulation: 0.1% (typical)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LD1117V50 has three pins:

  1. Vin (Input): This pin is used to connect the input voltage source.
  2. Vout (Output): The regulated output voltage is obtained from this pin.
  3. GND (Ground): This pin is connected to the ground reference of the circuit.

Functional Features

  • Low Dropout Voltage: The LD1117V50 exhibits a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
  • Adjustable Output Voltage: The output voltage can be adjusted within a specified range using external resistors.
  • Thermal Overload Protection: The regulator incorporates thermal overload protection, preventing damage due to excessive heat.
  • Short-Circuit Protection: It is equipped with short-circuit protection, safeguarding the circuit from potential damage in case of a short circuit.

Advantages and Disadvantages

Advantages

  • High output current capability
  • Wide input voltage range
  • Low dropout voltage
  • Adjustable output voltage

Disadvantages

  • Relatively higher power dissipation compared to switching regulators
  • Limited output voltage range

Working Principles

The LD1117V50 operates based on the principle of linear voltage regulation. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. By maintaining a constant voltage drop across the pass transistor, it ensures a stable output voltage regardless of variations in the input voltage or load conditions.

Detailed Application Field Plans

The LD1117V50 finds applications in various electronic systems, including but not limited to: - Power supplies for microcontrollers and digital circuits - Battery-powered devices - Automotive electronics - Industrial control systems - Audio amplifiers

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LD1117V50 are: - LM317 - LT1085 - LDO50V

These models offer similar functionality and characteristics, providing options for different design requirements.

Word count: 430 words

Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van LD1117V50 in technische oplossingen

  1. What is the maximum input voltage for LD1117V50?
    - The maximum input voltage for LD1117V50 is 15V.

  2. What is the typical output current of LD1117V50?
    - The typical output current of LD1117V50 is 800mA.

  3. Can LD1117V50 be used in automotive applications?
    - Yes, LD1117V50 can be used in automotive applications.

  4. What is the dropout voltage of LD1117V50?
    - The dropout voltage of LD1117V50 is typically 1.1V at 800mA.

  5. Is LD1117V50 suitable for low power applications?
    - Yes, LD1117V50 is suitable for low power applications.

  6. What is the thermal resistance of LD1117V50?
    - The thermal resistance of LD1117V50 is typically 50°C/W.

  7. Can LD1117V50 be used in battery-powered devices?
    - Yes, LD1117V50 can be used in battery-powered devices.

  8. What is the operating temperature range of LD1117V50?
    - The operating temperature range of LD1117V50 is -40°C to 125°C.

  9. Does LD1117V50 require an external capacitor for stability?
    - Yes, LD1117V50 requires an external capacitor for stability.

  10. Is LD1117V50 available in different package types?
    - Yes, LD1117V50 is available in TO-220, SOT-223, and other package types.