LTC3631IDD-5#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency step-down DC/DC converter - Wide input voltage range: 4.5V to 20V - Output voltage: 5V - Maximum output current: 500mA - Low quiescent current: 25µA - Adjustable frequency: 550kHz to 2.25MHz - Internal synchronous rectification - Soft-start and current limit protection - Thermal shutdown

Package: DFN-10

Essence: The LTC3631IDD-5#TRPBF is a high-efficiency step-down DC/DC converter designed for power management applications. It provides a regulated 5V output voltage from an input voltage ranging from 4.5V to 20V.

Packaging/Quantity: The LTC3631IDD-5#TRPBF is available in a DFN-10 package. It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 4.5V to 20V
• Output Voltage: 5V
• Maximum Output Current: 500mA
• Quiescent Current: 25µA
• Adjustable Frequency Range: 550kHz to 2.25MHz
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LTC3631IDD-5#TRPBF has the following pin configuration:

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| | | VOUT | |_______________| | | | VIN | |_______________| | | | GND | |_______________| | | | SW | |_______________| | | | FB | |_______________| | | | EN | |_______________| | | | SS | |_______________| | | | PG | |_______________| | | | VCC | |_______________| ```

Functional Features

• High efficiency step-down DC/DC conversion
• Wide input voltage range for versatile applications
• Adjustable frequency for optimization of performance and size
• Internal synchronous rectification for improved efficiency
• Soft-start and current limit protection for reliable operation
• Thermal shutdown to prevent overheating

Advantages and Disadvantages

Advantages: - High efficiency conversion reduces power loss - Wide input voltage range allows for flexibility in power sources - Adjustable frequency enables optimization for different applications - Internal synchronous rectification improves overall efficiency - Soft-start and current limit protection enhance reliability - Thermal shutdown prevents damage due to overheating

Disadvantages: - Maximum output current limited to 500mA, may not be suitable for high-power applications - DFN-10 package may require specialized handling during assembly

Working Principles

The LTC3631IDD-5#TRPBF operates as a step-down DC/DC converter. It takes an input voltage ranging from 4.5V to 20V and efficiently converts it to a regulated 5V output voltage. The internal synchronous rectification minimizes power loss, while the adjustable frequency allows for optimization of performance and size. The soft-start and current limit protection features ensure reliable operation, and the thermal shutdown protects the IC from overheating.

Detailed Application Field Plans

The LTC3631IDD-5#TRPBF is commonly used in various power management applications, including but not limited to: - Battery-powered devices - Portable electronics - Industrial equipment - Automotive systems - IoT devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LTC3631IDD-5#TRPBF include: - LT8610ABEMSE#PBF - TPS54331DR - ADP2384ACPZ-R7 - MAX15062ATB+T - MP2307DN-LF-Z

These alternative models can be considered based on specific requirements and design constraints.

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