LTC3855EUJ#TRPBF

Product Overview

Category

The LTC3855EUJ#TRPBF belongs to the category of high-performance synchronous step-down DC/DC controller.

Use

It is used for regulating voltage in various electronic devices and systems, such as power supplies, industrial equipment, and automotive applications.

Characteristics

• High efficiency
• Wide input voltage range
• Adjustable frequency and phase
• Synchronous rectification
• Accurate current limit

Package

The LTC3855EUJ#TRPBF comes in a 28-lead (4mm × 5mm) QFN package.

Essence

The essence of LTC3855EUJ#TRPBF lies in its ability to efficiently regulate voltage while offering flexibility and precision in various applications.

Packaging/Quantity

The product is typically packaged in reels with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 38V
• Output Voltage Range: 0.6V to 5.5V
• Switching Frequency Range: 200kHz to 3MHz
• Operating Temperature Range: -40°C to 125°C
• Quiescent Current: 85µA

Detailed Pin Configuration

The LTC3855EUJ#TRPBF features a 28-pin configuration, including VIN, VOUT, GND, FB, COMP, SS/TRK, and more. For the detailed pin configuration, please refer to the product datasheet.

Functional Features

• Constant frequency current mode architecture
• Power good output voltage monitor
• Programmable soft-start
• Overvoltage protection
• Thermal shutdown

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power dissipation
• Wide input voltage range allows for versatile applications
• Accurate current limit enhances system protection

Disadvantages

• Higher cost compared to non-synchronous controllers
• Requires careful PCB layout for optimal performance

Working Principles

The LTC3855EUJ#TRPBF operates on the principle of synchronous rectification and constant frequency current mode control. It regulates the output voltage by adjusting the duty cycle of the internal switches based on feedback from the output voltage.

Detailed Application Field Plans

The LTC3855EUJ#TRPBF is well-suited for a wide range of applications, including: - Point-of-load converters - Industrial power supplies - Automotive electronics - Distributed power systems

Detailed and Complete Alternative Models

Some alternative models to LTC3855EUJ#TRPBF include: - LT8610ABEMSE#PBF - LT8645SIFE#PBF - LT8362IMS8E#PBF

In summary, the LTC3855EUJ#TRPBF is a high-performance synchronous step-down DC/DC controller that offers efficient voltage regulation, wide applicability, and advanced features for various electronic systems and devices.

(Word count: 410)