Monolithic Power Systems Inc.
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MPQ2143DJ-LF-Z
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MPQ2143DJ-LF-Z

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics:
    • High efficiency
    • Low power consumption
    • Small form factor
    • Wide input voltage range
  • Package: DFN-8 (Dual Flat No-Lead)
  • Essence: Power MOSFET and PWM Controller in a single package
  • Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

  • Input Voltage Range: 4.5V to 18V
  • Output Voltage Range: 0.6V to VIN
  • Switching Frequency: 500kHz
  • Maximum Output Current: 3A
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MPQ2143DJ-LF-Z has the following pin configuration:

  1. VIN: Input voltage
  2. GND: Ground
  3. EN: Enable pin
  4. FB: Feedback pin
  5. COMP: Compensation pin
  6. SS: Soft-start pin
  7. LX: Switch node connection
  8. VOUT: Output voltage

Functional Features

  • Integrated power MOSFET and PWM controller for simplified design
  • Adjustable output voltage through external resistors
  • Overcurrent protection (OCP) and thermal shutdown (TSD) features
  • Soft-start function for controlled startup
  • Stable and efficient operation over a wide input voltage range

Advantages and Disadvantages

Advantages: - Compact size saves board space - High efficiency reduces power dissipation - Wide input voltage range allows for versatile applications - Integrated features simplify circuit design

Disadvantages: - Limited maximum output current of 3A - Operating temperature range may not be suitable for extreme environments

Working Principles

The MPQ2143DJ-LF-Z combines a power MOSFET and a PWM controller in a single package. The PWM controller generates a high-frequency signal that drives the power MOSFET, controlling the output voltage. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle of the PWM signal to maintain a stable output. The compensation pin (COMP) allows for fine-tuning of the control loop to optimize stability and transient response.

Detailed Application Field Plans

The MPQ2143DJ-LF-Z is commonly used in various applications, including:

  1. Power supplies for consumer electronics
  2. Battery-powered devices
  3. Industrial automation systems
  4. LED lighting
  5. Automotive electronics

Alternative Models

Here are some alternative models that offer similar functionality:

  1. MPQ2142DJ-LF-Z: Similar specifications but with a lower maximum output current of 2A.
  2. MPQ2144DJ-LF-Z: Similar specifications but with a higher maximum output current of 4A.
  3. MPQ2145DJ-LF-Z: Similar specifications but with a higher input voltage range of up to 24V.

These alternative models can be considered based on specific application requirements.

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Liste 10 perguntas e respostas comuns relacionadas à aplicação de MPQ2143DJ-LF-Z em soluções técnicas

Sure! Here are 10 common questions and answers related to the application of MPQ2143DJ-LF-Z in technical solutions:

  1. Question: What is the MPQ2143DJ-LF-Z?
    - Answer: The MPQ2143DJ-LF-Z is a specific model of power management integrated circuit (PMIC) designed for use in various technical solutions.

  2. Question: What are the key features of the MPQ2143DJ-LF-Z?
    - Answer: The key features of the MPQ2143DJ-LF-Z include multiple voltage regulators, power switches, and protection functions such as overvoltage and overcurrent protection.

  3. Question: In what applications can the MPQ2143DJ-LF-Z be used?
    - Answer: The MPQ2143DJ-LF-Z can be used in a wide range of applications, including industrial automation, consumer electronics, automotive systems, and more.

  4. Question: How many voltage regulators does the MPQ2143DJ-LF-Z have?
    - Answer: The MPQ2143DJ-LF-Z has four voltage regulators, which can provide different output voltages as required by the application.

  5. Question: Can the MPQ2143DJ-LF-Z handle high currents?
    - Answer: Yes, the MPQ2143DJ-LF-Z is capable of handling high currents, making it suitable for power-hungry applications.

  6. Question: Does the MPQ2143DJ-LF-Z have any built-in protection features?
    - Answer: Yes, the MPQ2143DJ-LF-Z includes various protection features such as overvoltage protection, overcurrent protection, and thermal shutdown.

  7. Question: Is the MPQ2143DJ-LF-Z compatible with different input voltage levels?
    - Answer: Yes, the MPQ2143DJ-LF-Z can accept a wide range of input voltage levels, typically from 2.7V to 5.5V.

  8. Question: Can the MPQ2143DJ-LF-Z be controlled and monitored remotely?
    - Answer: Yes, the MPQ2143DJ-LF-Z supports various control and monitoring interfaces such as I2C, SPI, and SMBus.

  9. Question: What is the efficiency of the MPQ2143DJ-LF-Z?
    - Answer: The efficiency of the MPQ2143DJ-LF-Z depends on the specific operating conditions and load requirements but is generally high, thanks to its advanced power management techniques.

  10. Question: Are there any evaluation boards or reference designs available for the MPQ2143DJ-LF-Z?
    - Answer: Yes, the manufacturer provides evaluation boards and reference designs that can help developers quickly prototype and integrate the MPQ2143DJ-LF-Z into their technical solutions.

Please note that the answers provided here are general and may vary depending on the specific application and requirements. It is always recommended to refer to the datasheet and consult with the manufacturer for detailed information.