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TPS40195RGYR
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TPS40195RGYR

Introduction

The TPS40195RGYR is a voltage mode synchronous buck controller designed for high-performance applications. This device offers a wide input voltage range and high efficiency, making it suitable for various power supply designs.

Basic Information Overview

  • Category: Voltage Mode Synchronous Buck Controller
  • Use: Power supply design for high-performance applications
  • Characteristics: Wide input voltage range, high efficiency
  • Package: VQFN-20
  • Essence: Efficient power management solution
  • Packaging/Quantity: Tape and Reel (2500 units per reel)

Specifications

  • Input Voltage Range: 4.5V to 28V
  • Output Voltage Range: 0.6V to 5.5V
  • Switching Frequency: Up to 2.2MHz
  • Operating Temperature Range: -40°C to 125°C
  • Features: Programmable soft start, adjustable current limit, power good indicator

Detailed Pin Configuration

  1. VIN: Input voltage
  2. PGND: Power ground
  3. BOOT: Bootstrap capacitor connection
  4. PH: Phase node connection
  5. COMP: Compensation input
  6. SS/TR: Soft start/tracking
  7. FB: Feedback voltage input
  8. VCC: Controller supply voltage
  9. AGND: Analog ground
  10. EN: Enable pin
  11. RT/CLK: Oscillator frequency setting
  12. SS/TR: Soft start/tracking
  13. ILIM: Current limit setting
  14. PG: Power good indicator
  15. SS/TR: Soft start/tracking
  16. SS/TR: Soft start/tracking
  17. SS/TR: Soft start/tracking
  18. SS/TR: Soft start/tracking
  19. SS/TR: Soft start/tracking
  20. SW: Switch node connection

Functional Features

  • Voltage Mode Control: Provides precise regulation of the output voltage
  • Synchronous Rectification: Maximizes efficiency by reducing switching losses
  • Programmable Soft Start: Allows gradual ramp-up of the output voltage
  • Adjustable Current Limit: Protects the system from overcurrent conditions
  • Power Good Indicator: Signals when the output voltage is within regulation

Advantages and Disadvantages

Advantages

  • High efficiency
  • Wide input voltage range
  • Flexible frequency synchronization
  • Integrated bootstrap diode
  • Small package size

Disadvantages

  • Limited maximum output current
  • External compensation components required

Working Principles

The TPS40195RGYR operates as a voltage mode controller, where the feedback voltage is compared to a reference to regulate the output voltage. The integrated synchronous rectifier minimizes power losses by ensuring efficient energy transfer from the input to the output.

Detailed Application Field Plans

The TPS40195RGYR is well-suited for various applications, including: - Point-of-load converters - Industrial power supplies - Telecommunications equipment - Server and storage systems - Automotive electronics

Detailed and Complete Alternative Models

  • TPS40170: Similar voltage mode synchronous buck controller with different package options
  • TPS548B22: Higher current capability with integrated MOSFETs
  • LM5117: Non-synchronous buck controller with adjustable frequency

In conclusion, the TPS40195RGYR offers a versatile and efficient solution for power supply designs in high-performance applications, despite its limitations in maximum output current and external compensation requirements.

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技術ソリューションにおける TPS40195RGYR の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is the TPS40195RGYR?

    • The TPS40195RGYR is a synchronous buck controller designed for high-current, high-frequency, and high-efficiency applications.

  2. What is the input voltage range of TPS40195RGYR?

    • The input voltage range of TPS40195RGYR is 4.5V to 28V.

  3. What is the output voltage range of TPS40195RGYR?

    • The output voltage range of TPS40195RGYR is 0.6V to 5.5V.

  4. What is the maximum switching frequency of TPS40195RGYR?

    • The maximum switching frequency of TPS40195RGYR is 2.2MHz.

  5. What are the key features of TPS40195RGYR?

    • The key features of TPS40195RGYR include adjustable soft start, cycle-by-cycle current limit, power good indicator, and thermal shutdown protection.

  6. What type of applications is TPS40195RGYR suitable for?

    • TPS40195RGYR is suitable for a wide range of applications including point-of-load regulation, industrial power supplies, and distributed power systems.

  7. What is the efficiency of TPS40195RGYR?

    • The efficiency of TPS40195RGYR can reach up to 95% depending on the application and operating conditions.

  8. Does TPS40195RGYR require an external compensation network?

    • Yes, TPS40195RGYR requires an external compensation network for stability and loop control.

  9. What is the typical quiescent current of TPS40195RGYR?

    • The typical quiescent current of TPS40195RGYR is 200µA.

  10. Is TPS40195RGYR available in a small package?

    • Yes, TPS40195RGYR is available in a small 20-pin VQFN package, making it suitable for space-constrained applications.