LTC3418EUHF#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Low quiescent current - Wide input voltage range - Adjustable output voltage - Small package size

Package: QFN-20

Essence: The LTC3418EUHF#TRPBF is a high-efficiency synchronous buck regulator IC designed to provide a regulated output voltage from a wide input voltage range.

Packaging/Quantity: The LTC3418EUHF#TRPBF is available in a QFN-20 package. It is typically sold in reels containing 2500 units per reel.

Specifications

• Input Voltage Range: 2.5V - 5.5V
• Output Voltage Range: 0.6V - VIN
• Maximum Output Current: 3A
• Switching Frequency: 1MHz
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LTC3418EUHF#TRPBF has the following pin configuration:

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| | | VOUT | |_______________| | | | GND | |_______________| | | | SW | |_______________| | | | VIN | |_______________| | | | FB | |_______________| ```

Functional Features

• High efficiency synchronous buck regulator
• Adjustable output voltage through feedback (FB) pin
• Overcurrent protection
• Thermal shutdown protection
• Soft-start feature for controlled startup

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power dissipation - Wide input voltage range allows for versatile applications - Small package size saves board space - Adjustable output voltage provides flexibility

Disadvantages: - Limited maximum output current (3A) - Higher quiescent current compared to some other regulators

Working Principles

The LTC3418EUHF#TRPBF is a synchronous buck regulator that uses a high-frequency switching technique to efficiently step down the input voltage to a regulated output voltage. It employs a pulse-width modulation (PWM) control scheme to regulate the output voltage based on the feedback signal received at the FB pin.

When the input voltage exceeds the desired output voltage, the internal switches are controlled to reduce the duty cycle and lower the output voltage. Conversely, when the input voltage drops below the desired output voltage, the duty cycle is increased to raise the output voltage.

The regulator also incorporates overcurrent protection to prevent damage in case of excessive load currents, as well as thermal shutdown protection to safeguard against overheating.

Detailed Application Field Plans

The LTC3418EUHF#TRPBF can be used in various applications, including but not limited to: - Portable electronic devices - Battery-powered systems - Industrial equipment - Automotive electronics - Distributed power systems

Its wide input voltage range and adjustable output voltage make it suitable for a wide range of applications where efficient voltage regulation is required.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LTC3418EUHF#TRPBF include: - LT8610ABEUJ#PBF - TPS54332DDAR - ADP2384ACPZ-R7

These alternatives should be evaluated based on specific application requirements and design considerations.

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