STMicroelectronics
Obrázek může být reprezentace.
Viz Specifikace pro podrobnosti o produktu.
LD1117AV25
Zobrazit detail DataSheets

LD1117AV25

Product Overview

Category

The LD1117AV25 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
  • Fixed output voltage of 2.5 V
  • Thermal overload protection
  • Short-circuit current limit
  • Output voltage accuracy of ±1%

Package

The LD1117AV25 comes in a TO-220 package, which is a widely used through-hole package for power semiconductors.

Essence

The essence of LD1117AV25 lies in its ability to provide a stable and regulated output voltage of 2.5 V with low dropout voltage.

Packaging/Quantity

The LD1117AV25 is typically available in reels or tubes, with quantities varying depending on the supplier.

Specifications

  • Input Voltage Range: 4.4 V to 15 V
  • Output Voltage: 2.5 V
  • Dropout Voltage: 1.2 V (at 800 mA)
  • Output Current: Up to 800 mA
  • Line Regulation: ±0.2%
  • Load Regulation: ±0.4%
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LD1117AV25 has three pins:

  1. VIN (Input Voltage): This pin is connected to the input voltage source.
  2. GND (Ground): This pin is connected to the ground reference.
  3. VOUT (Output Voltage): This pin provides the regulated output voltage of 2.5 V.

Functional Features

  • Low dropout voltage ensures efficient regulation even when the input voltage is close to the desired output voltage.
  • Thermal overload protection prevents damage due to excessive heat.
  • Short-circuit current limit protects the regulator from high currents during a short circuit.

Advantages and Disadvantages

Advantages

  • Stable and accurate output voltage regulation.
  • Low dropout voltage minimizes power dissipation.
  • Thermal overload protection ensures device safety.
  • Suitable for a wide range of applications.

Disadvantages

  • Limited output current capacity compared to higher-rated regulators.
  • Higher cost compared to some other voltage regulators in the market.

Working Principles

The LD1117AV25 is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the output voltage with a reference voltage and adjusting the pass transistor accordingly to maintain a stable output voltage of 2.5 V.

Detailed Application Field Plans

The LD1117AV25 finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices - Embedded systems - Consumer electronics - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LD1117AV25 are: - LM1117: Similar voltage regulator with adjustable output voltage. - LT1117: Low dropout voltage regulator with higher output current capability. - LDO50V: Voltage regulator with a fixed output voltage of 5 V.

These alternative models offer different features and specifications, allowing users to choose the most suitable option for their specific requirements.

Word count: 420 words

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LD1117AV25 v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LD1117AV25 in technical solutions:

  1. Q: What is LD1117AV25? A: LD1117AV25 is a low-dropout voltage regulator that provides a fixed output voltage of 2.5V.

  2. Q: What is the maximum input voltage for LD1117AV25? A: The maximum input voltage for LD1117AV25 is typically 15V.

  3. Q: What is the dropout voltage of LD1117AV25? A: The dropout voltage of LD1117AV25 is typically around 1.2V.

  4. Q: Can LD1117AV25 handle high currents? A: Yes, LD1117AV25 can handle currents up to 800mA.

  5. Q: Is LD1117AV25 suitable for battery-powered applications? A: Yes, LD1117AV25 is suitable for battery-powered applications due to its low dropout voltage.

  6. Q: Does LD1117AV25 require any external components for operation? A: Yes, LD1117AV25 requires input and output capacitors for stability.

  7. Q: Can LD1117AV25 be used as a voltage regulator for microcontrollers? A: Yes, LD1117AV25 can be used as a voltage regulator for microcontrollers operating at 2.5V.

  8. Q: Is LD1117AV25 available in different package options? A: Yes, LD1117AV25 is available in various package options such as SOT-223, TO-220, etc.

  9. Q: What is the typical quiescent current of LD1117AV25? A: The typical quiescent current of LD1117AV25 is around 5mA.

  10. Q: Can LD1117AV25 handle temperature variations? A: Yes, LD1117AV25 has a wide operating temperature range and can handle temperature variations effectively.

Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.