Linear Technology/QD Devices
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LTC3649EUFD#TRPBF
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LTC3649EUFD#TRPBF

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High Efficiency, Low Quiescent Current, Wide Input Voltage Range
  • Package: 4x5mm QFN-28
  • Essence: Voltage Regulator
  • Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 2.7V to 60V
  • Output Voltage Range: 0.6V to 55V
  • Maximum Output Current: 4A
  • Quiescent Current: 20µA
  • Switching Frequency: 1MHz
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LTC3649EUFD#TRPBF has a total of 28 pins. The pin configuration is as follows:

  1. VIN: Input Voltage
  2. GND: Ground
  3. SW: Switch Node Connection
  4. FB: Feedback Voltage
  5. SS: Soft-Start Capacitor
  6. VOUT: Output Voltage
  7. PGND: Power Ground
  8. SYNC: External Clock Synchronization
  9. CLKOUT: Internal Clock Output
  10. RUN/SS/TRK: Run Mode Selection / Soft-Start / Tracking
  11. VCC: Supply Voltage for Internal Circuitry
  12. VREF: Reference Voltage Output
  13. ITH: Current Limit Threshold
  14. MODE: Operation Mode Selection
  15. PGOOD: Power Good Indicator
  16. EN: Enable Control
  17. RT: Oscillator Timing Resistor
  18. CT: Oscillator Timing Capacitor
  19. BST: Bootstrap Capacitor Connection
  20. LX: Inductor Connection
  21. AGND: Analog Ground
  22. VFB: Feedback Voltage Input
  23. VCC1: Supply Voltage for Internal Circuitry
  24. VCC2: Supply Voltage for Internal Circuitry
  25. VCC3: Supply Voltage for Internal Circuitry
  26. VCC4: Supply Voltage for Internal Circuitry
  27. VCC5: Supply Voltage for Internal Circuitry
  28. VCC6: Supply Voltage for Internal Circuitry

Functional Features

  • Wide input voltage range allows for versatile applications.
  • High efficiency ensures minimal power loss during operation.
  • Low quiescent current enables energy-saving performance.
  • Integrated power ground and analog ground for improved noise immunity.
  • Power good indicator provides system status monitoring.
  • Enable control allows for easy on/off switching.

Advantages and Disadvantages

Advantages: - Wide input voltage range makes it suitable for various power supply designs. - High efficiency results in reduced power consumption and heat dissipation. - Low quiescent current prolongs battery life in portable devices. - Integrated power ground and analog ground minimize noise interference. - Power good indicator enhances system reliability. - Enable control simplifies power management.

Disadvantages: - Limited maximum output current may not be sufficient for high-power applications. - The 4x5mm package size may pose challenges for space-constrained designs. - Higher cost compared to some alternative models.

Working Principles

The LTC3649EUFD#TRPBF is a voltage regulator IC that converts an input voltage within the range of 2.7V to 60V into a regulated output voltage between 0.6V and 55V. It utilizes a high-frequency switching architecture to achieve high efficiency and low quiescent current.

The device operates by controlling the duty cycle of an internal switch, which regulates the output voltage based on the feedback voltage provided by the FB pin. The switching frequency can be synchronized with an external clock using the SYNC pin.

The LTC3649EUFD#TRPBF incorporates various protection features such as overcurrent protection, thermal shutdown, and undervoltage lockout to ensure safe and reliable operation.

Detailed Application Field Plans

The LTC3649EUFD#TRPBF is well-suited for a wide range of applications, including but not limited to:

  1. Industrial Power Supplies: The wide input voltage range and high efficiency make it suitable for industrial power supply designs.
  2. Automotive Electronics: The device's robustness and temperature range enable its use in automotive electronics, such as infotainment systems and lighting control modules.
  3. Telecommunications: The voltage regulator can be employed in telecommunications equipment, providing stable power for various components.
  4. Renewable Energy Systems: The LTC3649EUFD#TRPBF can be utilized in renewable energy systems, such as solar inverters, to regulate the output voltage from solar panels.
  5. Portable Devices: Its low quiescent current and small package size make it ideal for battery-powered portable devices, including smartphones, tablets, and wearable devices.

Detailed and Complete Alternative Models

  1. LM2596S

Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van LTC3649EUFD#TRPBF in technische oplossingen

Sure! Here are 10 common questions and answers related to the application of LTC3649EUFD#TRPBF in technical solutions:

  1. Q: What is LTC3649EUFD#TRPBF? A: LTC3649EUFD#TRPBF is a specific model number for a power management IC (integrated circuit) manufactured by Linear Technology (now part of Analog Devices). It is designed for use in various technical solutions.

  2. Q: What are the key features of LTC3649EUFD#TRPBF? A: Some key features of LTC3649EUFD#TRPBF include high efficiency, wide input voltage range, multiple output channels, programmable output voltages, and integrated protection features.

  3. Q: What are the typical applications of LTC3649EUFD#TRPBF? A: LTC3649EUFD#TRPBF can be used in a wide range of applications such as industrial equipment, automotive systems, telecommunications, data centers, and portable devices.

  4. Q: What is the maximum input voltage supported by LTC3649EUFD#TRPBF? A: The maximum input voltage supported by LTC3649EUFD#TRPBF is typically around 60V, but it is always recommended to refer to the datasheet for precise specifications.

  5. Q: How many output channels does LTC3649EUFD#TRPBF have? A: LTC3649EUFD#TRPBF has four independent output channels, each capable of delivering a different programmable output voltage.

  6. Q: Can LTC3649EUFD#TRPBF handle high current loads? A: Yes, LTC3649EUFD#TRPBF is designed to handle high current loads. Each output channel can provide up to several amps of current, depending on the specific configuration.

  7. Q: Does LTC3649EUFD#TRPBF have any built-in protection features? A: Yes, LTC3649EUFD#TRPBF incorporates various protection features such as overvoltage protection, undervoltage lockout, thermal shutdown, and short-circuit protection.

  8. Q: Is LTC3649EUFD#TRPBF suitable for battery-powered applications? A: Yes, LTC3649EUFD#TRPBF is suitable for battery-powered applications. It has a wide input voltage range that can accommodate different battery chemistries and voltages.

  9. Q: Can I program the output voltages of LTC3649EUFD#TRPBF? A: Yes, LTC3649EUFD#TRPBF allows you to program the output voltages of each channel using external resistors or through a digital interface, depending on the specific configuration.

  10. Q: Where can I find more information about LTC3649EUFD#TRPBF? A: You can find more detailed information about LTC3649EUFD#TRPBF in the datasheet provided by Analog Devices. It contains comprehensive specifications, application notes, and design guidelines.

Please note that the answers provided here are general and should be verified with the official documentation and datasheet for accurate information.