LTC3419EDD#PBF

Product Overview

The LTC3419EDD#PBF belongs to the category of high-efficiency, monolithic synchronous buck regulators. It is commonly used in various electronic devices and systems to efficiently step down voltage from a higher input to a lower output. The LTC3419EDD#PBF is known for its compact package, high efficiency, and versatile characteristics, making it suitable for a wide range of applications. It is available in a 10-lead DFN package and comes in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 2.25V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Maximum Output Current: 3A
• Switching Frequency: 1MHz
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LTC3419EDD#PBF features a 10-lead DFN package with the following pin configuration: 1. VIN: Input Voltage 2. SW: Switch Node 3. GND: Ground 4. FB: Feedback Voltage 5. SS: Soft-Start 6. SYNC/MODE: Synchronization or Mode Selection 7. VOUT: Output Voltage 8. PG: Power Good Indicator 9. NC: No Connection 10. EN: Enable Pin

Functional Features

• High Efficiency: The LTC3419EDD#PBF offers up to 95% efficiency, minimizing power loss and maximizing battery life in portable applications.
• Synchronous Operation: Its synchronous rectification design reduces conduction losses, enhancing overall efficiency.
• Wide Input Voltage Range: With an input voltage range of 2.25V to 5.5V, the regulator can accommodate various power sources.
• Power Good Indicator: The PG pin provides a signal when the output voltage is within regulation, ensuring proper system operation.

Advantages and Disadvantages

Advantages

• High efficiency
• Compact package
• Wide input voltage range
• Synchronous operation

Disadvantages

• Limited maximum output current (3A)

Working Principles

The LTC3419EDD#PBF operates on the principle of pulse-width modulation (PWM) to regulate the output voltage. When enabled, the internal switches control the energy transfer from the input to the output, adjusting the duty cycle to maintain the desired output voltage. Synchronous rectification minimizes power loss during the switching process, contributing to its high efficiency.

Detailed Application Field Plans

The LTC3419EDD#PBF finds extensive use in various applications, including: - Portable electronic devices - Battery-powered systems - Point-of-load regulation - Industrial automation - IoT devices

Detailed and Complete Alternative Models

• LTC3412EDD#PBF: Similar specifications with a different package
• LTC3413EDD#PBF: Higher maximum output current of 5A
• LTC3415EDD#PBF: Lower input voltage range for specific applications

In conclusion, the LTC3419EDD#PBF is a versatile and efficient synchronous buck regulator suitable for a wide range of electronic applications, offering high performance in a compact package.

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