LT3748HMS#TRPBF

Product Overview

Category

The LT3748HMS#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 devices and systems.

Characteristics

• High efficiency: The LT3748HMS#TRPBF offers high efficiency power conversion, minimizing energy loss.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for diverse applications.
• Compact package: The IC is available in a small MSOP-16 package, allowing for space-efficient integration into electronic designs.
• Versatile functionality: It supports multiple power management functions, including step-up, step-down, and inverting voltage conversions.

Package and Quantity

The LT3748HMS#TRPBF is packaged in an MSOP-16 package. It is typically sold in reels containing a specified quantity of ICs.

Specifications

• Input Voltage Range: 2.7V to 36V
• Output Voltage Range: Up to 60V
• Maximum Switching Frequency: 1MHz
• Operating Temperature Range: -40°C to 125°C
• Efficiency: Up to 95%
• Control Method: Current Mode

Pin Configuration

The LT3748HMS#TRPBF features a total of 16 pins, each serving a specific function. The pin configuration is as follows:

1. VIN: Input voltage pin
2. SW: Switch node connection
3. GND: Ground reference
4. FB: Feedback pin for output voltage regulation
5. VCC: Supply voltage for internal circuitry
6. SS: Soft-start capacitor connection
7. RT/CLKOUT: External resistor or clock output
8. SYNC/MODE: Synchronization or mode selection pin
9. VOUT: Output voltage pin
10. PGND: Power ground reference
11. ITH: Current sense threshold setting
12. SS/TR/UVLO: Soft-start, tracking, and undervoltage lockout pin
13. COMP: Compensation pin for stability control
14. RT/CLKIN: External resistor or clock input
15. SYNC/MODE: Synchronization or mode selection pin
16. NC: No connection

Functional Features

The LT3748HMS#TRPBF offers several functional features that enhance its performance and usability:

1. High Efficiency: The IC incorporates advanced power management techniques to achieve high conversion efficiency, reducing energy wastage.
2. Wide Input Voltage Range: It can handle a broad range of input voltages, making it suitable for various applications with different power sources.
3. Flexible Control: The LT3748HMS#TRPBF supports both current mode and voltage mode control, allowing users to choose the most appropriate control method for their specific requirements.
4. Protection Mechanisms: The IC includes built-in protection features such as overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown, ensuring safe operation and preventing damage to the device and connected components.

Advantages and Disadvantages

Advantages

• High efficiency power conversion
• Wide input voltage range
• Compact package size
• Versatile functionality
• Built-in protection mechanisms

Disadvantages

• Limited maximum switching frequency compared to some other ICs in the same category
• Requires external components for certain functionalities

Working Principles

The LT3748HMS#TRPBF operates based on a current mode control scheme. It regulates the output voltage by adjusting the duty cycle of the internal power switches. By monitoring the current flowing through the inductor, the IC dynamically adjusts the switching frequency to maintain stable and efficient power conversion.

Detailed Application Field Plans

The LT3748HMS#TRPBF finds applications in various fields, including but not limited to:

1. Automotive: Power management in electric vehicles, battery charging systems, and automotive lighting.
2. Industrial: Control systems, motor drives, and power supplies for industrial equipment.
3. Telecommunications: Power management in telecom infrastructure, base stations, and network equipment.
4. Consumer Electronics: Portable devices, battery-powered systems, and LED lighting.

Alternative Models

For users seeking alternative options, the following ICs can be considered as substitutes for the LT3748HMS#TRPBF:

1. LT3750HMS#TRPBF
2. LT3760HMS#TRPBF
3. LT3799HMS#TRPBF
4. LT3800HMS#TRPBF

These models offer similar functionalities and characteristics, providing flexibility in choosing the most suitable IC for specific applications.

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