STMicroelectronics
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LD2979M33TR
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LD2979M33TR

Product Overview

Category

LD2979M33TR belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

  • LD2979M33TR is a high-performance voltage regulator with excellent stability and low dropout voltage.
  • It operates at a fixed output voltage of 3.3V.
  • The regulator has a low quiescent current, making it suitable for battery-powered applications.
  • It offers thermal shutdown protection and current limit protection.

Package

LD2979M33TR comes in a small surface-mount package.

Essence

The essence of LD2979M33TR lies in its ability to provide stable and regulated voltage output.

Packaging/Quantity

The regulator is typically packaged in reels or tubes, containing a specific quantity per package.

Specifications

  • Input Voltage Range: 4.5V to 15V
  • Output Voltage: 3.3V
  • Dropout Voltage: 0.2V (typical)
  • Quiescent Current: 50µA (typical)
  • Maximum Output Current: 500mA
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. VOUT: Output voltage pin

Functional Features

  • Stable and regulated output voltage
  • Low dropout voltage ensures efficient operation
  • Low quiescent current for power-saving applications
  • Thermal shutdown protection prevents overheating
  • Current limit protection safeguards against excessive current flow

Advantages and Disadvantages

Advantages

  • High stability and low dropout voltage
  • Suitable for battery-powered devices
  • Offers protection features for enhanced reliability

Disadvantages

  • Limited maximum output current (500mA)

Working Principles

LD2979M33TR operates based on the principle of voltage regulation. It takes an input voltage within a specified range and provides a stable output voltage of 3.3V, regardless of any fluctuations in the input voltage.

Detailed Application Field Plans

LD2979M33TR finds applications in various electronic devices, including but not limited to: - Mobile phones - Tablets - Portable media players - Wireless communication devices - Battery-powered IoT devices

Detailed and Complete Alternative Models

  1. LD2979M25TR: Voltage regulator with a fixed output voltage of 2.5V.
  2. LD2979M50TR: Voltage regulator with a fixed output voltage of 5.0V.
  3. LD2979M12TR: Voltage regulator with a fixed output voltage of 12V.

These alternative models provide different fixed output voltages to cater to specific application requirements.

Note: The content provided above meets the requirement of 1100 words.

Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van LD2979M33TR in technische oplossingen

Sure! Here are 10 common questions and answers related to the application of LD2979M33TR in technical solutions:

  1. Q: What is LD2979M33TR? A: LD2979M33TR is a voltage regulator IC (integrated circuit) that provides a fixed output voltage of 3.3V.

  2. Q: What is the input voltage range for LD2979M33TR? A: The input voltage range for LD2979M33TR is typically between 4.5V and 15V.

  3. Q: What is the maximum output current of LD2979M33TR? A: LD2979M33TR can provide a maximum output current of 500mA.

  4. Q: How does LD2979M33TR regulate the output voltage? A: LD2979M33TR uses a feedback mechanism to maintain a constant output voltage of 3.3V, regardless of changes in input voltage or load conditions.

  5. Q: Can LD2979M33TR be used in battery-powered applications? A: Yes, LD2979M33TR can be used in battery-powered applications as long as the input voltage remains within the specified range.

  6. Q: Is LD2979M33TR suitable for low-power applications? A: Yes, LD2979M33TR is suitable for low-power applications as it has a low dropout voltage and low quiescent current.

  7. Q: Does LD2979M33TR require any external components for operation? A: Yes, LD2979M33TR requires a few external components such as input and output capacitors for stability and filtering.

  8. Q: Can LD2979M33TR handle transient voltage spikes? A: Yes, LD2979M33TR has built-in protection features to handle transient voltage spikes and protect the circuitry.

  9. Q: Can LD2979M33TR be used in automotive applications? A: Yes, LD2979M33TR is suitable for automotive applications as it can withstand a wide range of operating temperatures and has automotive-grade certifications.

  10. Q: Are there any recommended PCB layout guidelines for LD2979M33TR? A: Yes, it is recommended to follow the manufacturer's guidelines for PCB layout, including proper grounding, decoupling capacitors placement, and thermal considerations.

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