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TPS54478RTER
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TPS54478RTER

Product Overview

Category

The TPS54478RTER belongs to the category of voltage regulators.

Use

This product is primarily used for regulating voltage in electronic circuits.

Characteristics

  • High efficiency
  • Wide input voltage range
  • Low output voltage ripple
  • Fast transient response

Package

The TPS54478RTER comes in a small outline package (SOT) with thermal pad.

Essence

The essence of the TPS54478RTER lies in its ability to efficiently regulate voltage in various electronic applications.

Packaging/Quantity

This product is typically packaged in reels and the quantity per reel may vary depending on the manufacturer.

Specifications

  • Input Voltage Range: 4.5V to 18V
  • Output Voltage Range: 0.6V to 5.5V
  • Output Current: Up to 4A
  • Switching Frequency: 500kHz
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The TPS54478RTER has the following pin configuration:

  1. VIN: Input voltage pin
  2. PGND: Power ground pin
  3. BOOT: Bootstrap capacitor connection pin
  4. SW: Switch node pin
  5. FB: Feedback voltage pin
  6. EN: Enable pin
  7. SS/TR: Soft-start/tracking pin
  8. VSENSE: Current sense pin
  9. AGND: Analog ground pin
  10. VOUT: Output voltage pin

Functional Features

  • Integrated power MOSFETs
  • Adjustable output voltage
  • Overcurrent protection
  • Thermal shutdown protection
  • Power good indicator
  • Soft-start and tracking capability

Advantages and Disadvantages

Advantages

  • High efficiency leads to reduced power dissipation
  • Wide input voltage range allows for versatile applications
  • Low output voltage ripple ensures stable operation of downstream components
  • Fast transient response enables quick load changes

Disadvantages

  • Relatively high cost compared to traditional linear regulators
  • Requires careful consideration of external components for optimal performance

Working Principles

The TPS54478RTER operates on the principle of pulse-width modulation (PWM). It uses a feedback mechanism to continuously adjust the duty cycle of the switching signal, thereby regulating the output voltage. The integrated power MOSFETs efficiently switch between the input and output stages, minimizing power losses.

Detailed Application Field Plans

The TPS54478RTER is suitable for a wide range of applications, including but not limited to: - Industrial automation systems - Telecommunications equipment - Consumer electronics - Automotive electronics - Power supplies

Detailed and Complete Alternative Models

  • TPS54478RTET: Similar to TPS54478RTER, but without thermal pad
  • TPS54478RTE: Similar to TPS54478RTER, but without reel packaging
  • TPS54478RTETR: Similar to TPS54478RTER, but without thermal pad and with reel packaging

These alternative models provide flexibility in terms of package options and thermal considerations.

In conclusion, the TPS54478RTER is a highly efficient voltage regulator with a wide range of applications. Its compact package, adjustable output voltage, and various protection features make it a reliable choice for electronic circuit designs.

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de TPS54478RTER en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of TPS54478RTER in technical solutions:

  1. Q: What is the TPS54478RTER? A: The TPS54478RTER is a synchronous buck converter integrated circuit (IC) that provides high-efficiency power conversion for various applications.

  2. Q: What is the input voltage range of the TPS54478RTER? A: The TPS54478RTER has an input voltage range of 4.5V to 18V.

  3. Q: What is the output voltage range of the TPS54478RTER? A: The TPS54478RTER can provide an adjustable output voltage range from 0.6V to 5.5V.

  4. Q: What is the maximum output current of the TPS54478RTER? A: The TPS54478RTER can deliver up to 4A of continuous output current.

  5. Q: Does the TPS54478RTER require an external compensation network? A: No, the TPS54478RTER features an internally compensated control loop, eliminating the need for an external compensation network.

  6. Q: Can the TPS54478RTER operate in a wide temperature range? A: Yes, the TPS54478RTER is designed to operate in a temperature range of -40°C to 125°C.

  7. Q: Does the TPS54478RTER have built-in protection features? A: Yes, the TPS54478RTER includes overcurrent protection, thermal shutdown, and undervoltage lockout features for enhanced system reliability.

  8. Q: What type of package does the TPS54478RTER come in? A: The TPS54478RTER is available in a small 3.5mm x 3.5mm QFN package.

  9. Q: Can the TPS54478RTER be used in battery-powered applications? A: Yes, the TPS54478RTER's wide input voltage range and high efficiency make it suitable for battery-powered applications.

  10. Q: Are there any evaluation modules or reference designs available for the TPS54478RTER? A: Yes, Texas Instruments provides evaluation modules and reference designs to help users quickly prototype and implement the TPS54478RTER in their applications.

Please note that these answers are general and may vary depending on specific application requirements. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.