LT3758HMSE#PBF

Product Overview

Category

The LT3758HMSE#PBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in various power supply designs, including those found in industrial equipment, automotive systems, and telecommunications devices.

Characteristics

• High efficiency: The LT3758HMSE#PBF 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.
• Multiple output capability: This IC supports multiple output configurations, allowing for versatile power supply designs.
• Protection features: The LT3758HMSE#PBF incorporates various protection mechanisms, such as overvoltage and overcurrent protection, ensuring safe and reliable operation.
• Compact package: It is available in a small-sized package, enabling space-efficient designs.

Package and Quantity

The LT3758HMSE#PBF is packaged in a 16-pin thermally enhanced MSE package. It is typically sold in reels containing a specified quantity of units.

Specifications

• Input Voltage Range: 4V to 40V
• Output Voltage Range: Adjustable from 0.8V to 38V
• Maximum Switching Frequency: 500kHz
• Maximum Output Current: 4A
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LT3758HMSE#PBF features the following pin configuration:

1. VIN: Input voltage pin
2. SW: Switching node connection
3. GND: Ground reference
4. FB: Feedback pin for regulating the output voltage
5. VOUT: Output voltage pin
6. SYNC: Synchronization input pin
7. SS/TR: Soft-start/tracking pin
8. RT/CLK: External resistor or clock input pin
9. VCC: Supply voltage for internal circuitry
10. PGND: Power ground connection
11. SS/TR: Soft-start/tracking pin
12. VFB: Feedback voltage output pin
13. COMP: Compensation pin for loop stability
14. BST: Bootstrap capacitor connection
15. SW: Switching node connection
16. VIN: Input voltage pin

Functional Features

• Wide input voltage range allows for compatibility with various power sources.
• High efficiency conversion minimizes energy loss and improves overall system performance.
• Multiple output capability enables the design of complex power supply systems.
• Protection features ensure safe operation and protect against potential faults.
• Synchronization input facilitates the synchronization of multiple LT3758HMSE#PBF ICs.
• Soft-start/tracking feature provides controlled startup and shutdown sequences.

Advantages and Disadvantages

Advantages

• High efficiency power conversion
• Wide input voltage range
• Multiple output capability
• Compact package size
• Comprehensive protection features

Disadvantages

• Limited maximum output current (4A)

Working Principles

The LT3758HMSE#PBF operates as a step-down (buck) switching regulator. It utilizes a high-frequency switching technique to efficiently convert the input voltage to a lower, regulated output voltage. The IC incorporates a control loop that continuously adjusts the duty cycle of the switching transistor to maintain the desired output voltage. This control loop also ensures stable operation under varying load conditions.

Detailed Application Field Plans

The LT3758HMSE#PBF finds applications in various fields, including but not limited to: - Industrial equipment power supplies - Automotive power management systems - Telecommunications devices - LED lighting systems - Battery charging circuits

Detailed and Complete Alternative Models

1. LT3758HMS#PBF: Similar to LT3758HMSE#PBF, but without the thermally enhanced package.
2. LT3758IMSE#PBF: A variant with an extended input voltage range of 4V to 60V.
3. LT3758EMSE#PBF: Another variant with an extended operating temperature range of -55°C to 150°C.

These alternative models offer similar functionality and can be considered as substitutes for the LT3758HMSE#PBF in specific applications.

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