LT3751EUFD#TRPBF

Product Overview

Category

The LT3751EUFD#TRPBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is primarily used for controlling and regulating power in various electronic systems, such as battery chargers, LED drivers, and automotive applications.

Characteristics

• High efficiency: The LT3751EUFD#TRPBF offers high efficiency power conversion, minimizing energy loss during operation.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for diverse applications.
• Versatile output configurations: The IC supports multiple output configurations, allowing flexibility in system design.
• Protection features: It incorporates various protection mechanisms, including overvoltage and overcurrent protection, ensuring safe operation.

Package

The LT3751EUFD#TRPBF is available in a compact and industry-standard 28-lead QFN package. This package provides excellent thermal performance and ease of integration into circuit boards.

Essence

The essence of the LT3751EUFD#TRPBF lies in its ability to efficiently manage power in electronic systems, providing stable and regulated output voltages.

Packaging/Quantity

The IC is typically supplied in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Input Voltage Range: 4V to 60V
• Output Voltage Range: 0.8V to 60V
• Maximum Switching Frequency: 500kHz
• Operating Temperature Range: -40°C to 125°C
• Package Type: 28-Lead QFN

Detailed Pin Configuration

The LT3751EUFD#TRPBF has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. VCC: IC power supply pin
4. VOUT: Output voltage pin
5. FB: Feedback pin for regulating output voltage
6. COMP: Compensation pin for stability control
7. SS/TR: Soft-start and tracking pin
8. SYNC: Synchronization input pin
9. RT/CLK: External resistor or clock input pin
10. INTVCC: Internal voltage reference pin
11. PGND: Power ground pin
12. BST: Boost pin for high-side gate driver
13. SW: Switching node pin
14. AGND: Analog ground pin
15. ITH: Current sense threshold pin
16. VREF: Reference voltage output pin
17. ADJ: Adjustable pin for setting output voltage 18-28. NC: No connection pins

Functional Features

1. High Efficiency: The LT3751EUFD#TRPBF incorporates advanced power management techniques, resulting in high conversion efficiency.
2. Wide Input Voltage Range: It can handle a wide range of input voltages, making it suitable for various applications.
3. Multiple Output Configurations: The IC supports different output configurations, enabling flexibility in system design.
4. Protection Mechanisms: It includes built-in protection features like overvoltage and overcurrent protection, ensuring safe operation even under fault conditions.
5. Soft-Start and Tracking: The soft-start and tracking functionality allows gradual ramp-up of the output voltage, preventing excessive inrush current.
6. Synchronization Capability: The synchronization input enables synchronization with an external clock source, facilitating system integration.

Advantages and Disadvantages

Advantages

• High efficiency power conversion
• Wide input voltage range
• Versatile output configurations
• Built-in protection mechanisms
• Soft-start and tracking functionality
• Synchronization capability

Disadvantages

• Limited availability of alternative models
• Relatively higher cost compared to some other power management ICs

Working Principles

The LT3751EUFD#TRPBF operates based on a switching regulator topology. It utilizes high-frequency switching to efficiently convert the input voltage to the desired output voltage. The IC employs various control techniques, such as pulse width modulation (PWM), to regulate the output voltage and maintain stability. Additionally, it incorporates feedback mechanisms to continuously monitor and adjust the output voltage, ensuring accurate regulation.

Detailed Application Field Plans

The LT3751EUFD#TRPBF finds applications in a wide range of electronic systems, including:

1. Battery Chargers: The IC can be used in battery charging circuits for various devices, such as smartphones, tablets, and portable electronics.
2. LED Drivers: It is suitable for driving LEDs in lighting applications, providing efficient and regulated power supply.
3. Automotive Applications: The LT3751EUFD#TRPBF can be employed in automotive systems, such as electric vehicles and hybrid electric vehicles, for power management and control.

Detailed and Complete Alternative Models

While the LT3751EUFD#TRPBF is a highly capable power management IC, alternative models with