LTC1872BES6#TRMPBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Quiescent Current
• Package: 6-Lead ThinSOT
• Essence: Step-Down DC/DC Converter
• Packaging/Quantity: Tape & Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.25V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Switching Frequency: 550kHz
• Maximum Output Current: 1A
• Quiescent Current: 40µA
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LTC1872BES6#TRMPBF has the following pin configuration:

1. VIN: Input Voltage Pin
2. GND: Ground Pin
3. SW: Switching Node Pin
4. FB: Feedback Pin
5. EN: Enable Pin
6. VOUT: Output Voltage Pin

Functional Features

• High Efficiency: The LTC1872BES6#TRMPBF offers up to 95% efficiency, ensuring minimal power loss during conversion.
• Low Quiescent Current: With a quiescent current of only 40µA, this IC minimizes power consumption in standby or low-load conditions.
• Wide Input Voltage Range: It can accept input voltages ranging from 2.25V to 5.5V, making it suitable for various applications.
• Adjustable Output Voltage: The output voltage can be adjusted from 0.6V to the input voltage (VIN), providing flexibility in different power supply requirements.
• Overcurrent Protection: The IC incorporates overcurrent protection, safeguarding the circuit and load from excessive current.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power dissipation. - Low quiescent current minimizes standby power consumption. - Wide input voltage range allows for versatile applications. - Adjustable output voltage provides flexibility. - Overcurrent protection ensures circuit and load safety.

Disadvantages: - Limited maximum output current of 1A may not be suitable for high-power applications. - The 6-Lead ThinSOT package may require additional thermal management for certain operating conditions.

Working Principles

The LTC1872BES6#TRMPBF is a step-down DC/DC converter that utilizes a synchronous rectification topology. It operates by converting a higher input voltage to a lower output voltage with high efficiency. The switching frequency of 550kHz enables compact external components, reducing the overall size of the power supply solution. The IC regulates the output voltage based on the feedback received from the FB pin, ensuring stable and accurate voltage conversion.

Detailed Application Field Plans

The LTC1872BES6#TRMPBF finds applications in various fields, including but not limited to:

1. Portable Electronics: It can be used in battery-powered devices such as smartphones, tablets, and portable media players to efficiently regulate the voltage for different subsystems.
2. IoT Devices: The IC's low quiescent current makes it suitable for IoT applications where power efficiency is crucial for extended battery life.
3. Industrial Automation: It can be employed in industrial control systems, motor drives, and sensors, providing efficient power management solutions.
4. Automotive Electronics: The wide input voltage range and overcurrent protection make it suitable for automotive applications, including infotainment systems, lighting, and power distribution modules.

Detailed and Complete Alternative Models

1. LTC1872EMS8#PBF: Similar to LTC1872BES6#TRMPBF, but in an 8-Lead MSOP package.
2. LTC1872BES6#TRPBF: Similar to LTC1872BES6#TRMPBF, but in a 6-Lead ThinSOT package without tape and reel packaging.
3. LTC1872IMS8#PBF: Similar to LTC1872EMS8#PBF, but with improved thermal performance due to an exposed pad on the bottom.

These alternative models provide similar functionality and characteristics, allowing users to choose the most suitable option based on their specific requirements.

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