SPFI03.5T Product Overview

Introduction

The SPFI03.5T is a versatile electronic component that belongs to the category of power management integrated circuits (PMICs). This device is widely used in various electronic applications due to its unique characteristics and functional features.

Basic Information Overview

• Category: Power Management Integrated Circuit (PMIC)
• Use: Voltage regulation and power distribution
• Characteristics: High efficiency, compact size, wide input voltage range
• Package: Small outline package (SOP), 16-pin
• Essence: Regulating and distributing power within electronic systems
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Input Voltage Range: 4V to 36V
• Output Voltage Range: 1.2V to 24V
• Output Current: Up to 3.5A
• Switching Frequency: 500kHz
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

1. VIN (Pin 1) - Input voltage
2. SW (Pin 2) - Switch node
3. PGND (Pins 3, 4, 5, 6) - Power ground
4. FB (Pin 7) - Feedback voltage
5. COMP (Pin 8) - Compensation
6. SS/TRK (Pin 9) - Soft start/Tracking
7. EN (Pin 10) - Enable
8. VOUT (Pin 11) - Output voltage
9. PGND (Pins 12, 13, 14, 15) - Power ground
10. BST (Pin 16) - Bootstrap capacitor connection

Functional Features

• Wide Input Voltage Range: Allows for flexibility in various power supply configurations.
• High Efficiency: Minimizes power loss and heat generation.
• Integrated Protection Features: Overcurrent protection, thermal shutdown, and undervoltage lockout.
• Soft Start Function: Prevents inrush current during startup.

Advantages and Disadvantages

Advantages

• Compact size enables space-efficient designs.
• Wide input voltage range enhances versatility.
• High efficiency reduces power consumption.

Disadvantages

• Higher cost compared to traditional linear regulators.
• Requires careful PCB layout for optimal performance.

Working Principles

The SPFI03.5T operates based on a buck converter topology, where it efficiently steps down the input voltage to the desired output level using high-frequency switching.

Detailed Application Field Plans

The SPFI03.5T finds extensive use in the following application fields: - Industrial automation - Automotive electronics - Telecommunications equipment - Renewable energy systems

Detailed and Complete Alternative Models

1. SPFI02.5T: Similar specifications with lower output current capability.
2. SPFI04.5T: Higher output current capability with similar input voltage range.

In conclusion, the SPFI03.5T PMIC offers a reliable and efficient solution for voltage regulation and power distribution in diverse electronic systems, making it a valuable component in modern electronic design.

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