IR3521MTRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency - Low power consumption - Compact size - Wide input voltage range - Multiple protection features

Package: MTRPBF (Metal Top Tape Reel, Plastic Body, Flat Lead)

Essence: The IR3521MTRPBF is a power management IC designed for efficient power conversion and regulation in various electronic devices.

Packaging/Quantity: The IR3521MTRPBF is available in a standard reel packaging with 2500 units per reel.

Specifications

The specifications of the IR3521MTRPBF include:

• Input Voltage Range: 4.5V to 21V
• Output Voltage Range: 0.6V to 5.5V
• Maximum Output Current: 50A
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to 125°C
• Protection Features: Overcurrent protection, overvoltage protection, undervoltage lockout, thermal shutdown

Pin Configuration

The IR3521MTRPBF has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. VCC (Power Supply)
4. PGND (Power Ground)
5. FB (Feedback)
6. COMP (Compensation)
7. EN (Enable)
8. SS (Soft-Start)
9. ISENSE (Current Sense)
10. VDRV (Driver Voltage)
11. BOOT (Bootstrap)
12. PHASE (Phase)
13. LGATE (Low-Side Gate)
14. PGATE (High-Side Gate)

Functional Features

The IR3521MTRPBF offers the following functional features:

• High-efficiency synchronous buck converter
• Adaptive voltage positioning
• Programmable switching frequency
• Voltage tracking and sequencing
• Adjustable soft-start time
• Overcurrent protection with hiccup mode
• Overvoltage and undervoltage protection
• Thermal shutdown protection

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Wide input voltage range allows for versatile applications - Compact size saves board space - Multiple protection features ensure system reliability

Disadvantages: - Limited maximum output current of 50A may not be suitable for high-power applications - Requires careful thermal management due to the high power dissipation

Working Principles

The IR3521MTRPBF operates as a synchronous buck converter, converting a higher input voltage to a lower output voltage efficiently. It utilizes adaptive voltage positioning to optimize the power conversion process. The IC incorporates various control mechanisms to regulate the output voltage and provide protection against overcurrent, overvoltage, undervoltage, and thermal issues.

Application Field Plans

The IR3521MTRPBF is widely used in various electronic devices that require efficient power management, such as:

• Desktop computers
• Servers
• Gaming consoles
• Industrial equipment
• Telecommunications systems
• Automotive electronics

Alternative Models

Other alternative models that offer similar functionality to the IR3521MTRPBF include:

• IR3520MTRPBF
• IR3522MTRPBF
• IR3523MTRPBF
• IR3524MTRPBF

These models can be considered based on specific application requirements and design considerations.

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