Monolithic Power Systems Inc.
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MP4462DQ-LF-P
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MP4462DQ-LF-P

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High Efficiency, Synchronous Buck Converter
  • Package: QFN-16
  • Essence: Voltage Regulator
  • Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 4.5V to 18V
  • Output Voltage Range: 0.6V to 5.5V
  • Output Current: Up to 3A
  • Switching Frequency: 1MHz
  • Efficiency: Up to 95%
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MP4462DQ-LF-P has a QFN-16 package with the following pin configuration:

  1. VIN: Input Voltage
  2. PGND: Power Ground
  3. SW: Switch Node
  4. LX: Inductor Connection
  5. FB: Feedback Voltage
  6. EN: Enable Control
  7. SS/TR: Soft-Start/Tracking
  8. AGND: Analog Ground
  9. COMP: Compensation
  10. VCC: Supply Voltage
  11. BOOT: Bootstrap Capacitor
  12. BST: Bootstrap Voltage
  13. PG: Power Good Indicator
  14. ILIM: Current Limit
  15. SS/TR: Soft-Start/Tracking
  16. VOUT: Output Voltage

Functional Features

  • High efficiency synchronous buck converter
  • Wide input voltage range for versatile applications
  • Adjustable output voltage for flexibility
  • Integrated power good indicator for system monitoring
  • Overcurrent protection for enhanced safety
  • Soft-start and tracking functionality for controlled startup

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Wide input voltage range allows for compatibility with various power sources - Adjustable output voltage provides flexibility in different applications - Integrated power good indicator enables system monitoring - Overcurrent protection enhances safety of the circuit

Disadvantages: - Limited output current capacity (up to 3A) - Requires external components for operation - Relatively small package size may require careful handling during assembly

Working Principles

The MP4462DQ-LF-P is a synchronous buck converter that efficiently steps down the input voltage to a lower, adjustable output voltage. It utilizes high-frequency switching to regulate the output voltage while minimizing power losses. The integrated control circuitry ensures stable and accurate voltage regulation.

The device operates by controlling the duty cycle of the internal power switches based on feedback from the output voltage. This feedback loop continuously adjusts the duty cycle to maintain the desired output voltage, compensating for load variations and input voltage changes.

Detailed Application Field Plans

The MP4462DQ-LF-P is commonly used in various applications requiring efficient power management. Some potential application fields include:

  1. Portable electronic devices: Provides regulated power supply for smartphones, tablets, and portable media players.
  2. Industrial equipment: Suitable for powering control systems, motor drives, and sensors in industrial automation.
  3. Automotive electronics: Used in automotive infotainment systems, lighting controls, and advanced driver assistance systems (ADAS).
  4. LED lighting: Enables efficient power conversion for LED drivers in residential, commercial, and outdoor lighting applications.
  5. Telecommunications: Supports power management in networking equipment, routers, and data centers.

Detailed and Complete Alternative Models

  1. MP4460DQ-LF-P: Similar specifications and features, but with a different pin configuration.
  2. MP4463DQ-LF-P: Higher output current capability (up to 5A) with similar specifications and features.
  3. MP4464DQ-LF-P: Lower output current capability (up to 2A) with similar specifications and features.

These alternative models offer flexibility in choosing the most suitable device based on specific application requirements.

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Énumérez 10 questions et réponses courantes liées à l'application de MP4462DQ-LF-P dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of MP4462DQ-LF-P in technical solutions:

  1. Q: What is the MP4462DQ-LF-P? A: The MP4462DQ-LF-P is a high-efficiency, synchronous, step-down switching regulator IC.

  2. Q: What is the input voltage range of the MP4462DQ-LF-P? A: The MP4462DQ-LF-P has an input voltage range of 4.5V to 55V.

  3. Q: What is the output voltage range of the MP4462DQ-LF-P? A: The MP4462DQ-LF-P can provide an adjustable output voltage range from 0.6V to 24V.

  4. Q: What is the maximum output current of the MP4462DQ-LF-P? A: The MP4462DQ-LF-P can deliver up to 3A of continuous output current.

  5. Q: Does the MP4462DQ-LF-P require an external compensation network? A: No, the MP4462DQ-LF-P is internally compensated and does not require an external compensation network.

  6. Q: Can the MP4462DQ-LF-P operate in a wide temperature range? A: Yes, the MP4462DQ-LF-P can operate in a temperature range of -40°C to +125°C.

  7. Q: Does the MP4462DQ-LF-P have built-in protection features? A: Yes, the MP4462DQ-LF-P includes over-current protection, thermal shutdown, and under-voltage lockout.

  8. Q: What type of package does the MP4462DQ-LF-P come in? A: The MP4462DQ-LF-P is available in a compact 16-pin QFN package.

  9. Q: Can the MP4462DQ-LF-P be used in battery-powered applications? A: Yes, the MP4462DQ-LF-P has a low quiescent current and can be used in battery-powered applications.

  10. Q: Are there any evaluation boards or reference designs available for the MP4462DQ-LF-P? A: Yes, Monolithic Power Systems provides evaluation boards and reference designs to help with the implementation of the MP4462DQ-LF-P in various applications.

Please note that these answers are general and may vary depending on the specific requirements and application of the MP4462DQ-LF-P in your technical solution.