MP4558DQ-LF-Z

Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency - Low power consumption - Small form factor - Wide input voltage range - Multiple protection features

Package: QFN (Quad Flat No-leads)

Essence: The MP4558DQ-LF-Z is a power management IC designed to efficiently regulate and control power in various electronic devices.

Packaging/Quantity: The MP4558DQ-LF-Z is available in a QFN package and is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Maximum Output Current: 1.5A
• Switching Frequency: 1.2MHz
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MP4558DQ-LF-Z has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin
4. FB: Feedback pin
5. SW: Switching pin
6. PG: Power Good pin
7. VOUT: Output voltage pin

Functional Features

• High efficiency synchronous step-down converter
• Adjustable output voltage
• Overcurrent protection
• Thermal shutdown protection
• Under-voltage lockout protection
• Soft-start function for controlled startup

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Wide input voltage range allows for versatile applications - Small form factor enables compact designs - Multiple protection features ensure safe operation

Disadvantages: - Limited maximum output current may not be suitable for high-power applications - Higher cost compared to non-integrated power management solutions

Working Principles

The MP4558DQ-LF-Z operates as a synchronous step-down converter. It takes an input voltage within the specified range and efficiently converts it to a lower, adjustable output voltage. The integrated circuit utilizes high-frequency switching to regulate the output voltage while minimizing power losses. Various protection features ensure safe operation under different conditions.

Detailed Application Field Plans

The MP4558DQ-LF-Z is commonly used in the following applications:

1. Portable electronic devices: Provides efficient power management for smartphones, tablets, and portable media players.
2. IoT devices: Enables power regulation in smart home devices, wearables, and connected sensors.
3. Industrial equipment: Used in control systems, motor drives, and automation devices.
4. Automotive electronics: Suitable for powering infotainment systems, lighting modules, and advanced driver-assistance systems (ADAS).

Detailed and Complete Alternative Models

1. MP4558DN-LF-Z: Similar to MP4558DQ-LF-Z but available in a DFN package.
2. MP4560DQ-LF-Z: Higher maximum output current of 2A, suitable for more demanding applications.
3. MP4559DQ-LF-Z: Lower maximum output current of 1A, suitable for low-power applications.

These alternative models offer similar functionality with slight variations in specifications and package options.

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