Monolithic Power Systems Inc.
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MP4558DQ-LF-P
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MP4558DQ-LF-P

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High efficiency, low power consumption
  • Package: QFN-16
  • Essence: Voltage Regulator
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 2.7V to 5.5V
  • Output Voltage Range: 0.6V to VIN
  • Maximum Output Current: 1.5A
  • Efficiency: Up to 95%
  • Switching Frequency: 1.2MHz
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MP4558DQ-LF-P has a total of 16 pins arranged as follows:

  1. EN - Enable Pin
  2. FB - Feedback Pin
  3. SS/TR - Soft-Start/Tracking Pin
  4. GND - Ground Pin
  5. PGND - Power Ground Pin
  6. LX - Switch Node Pin
  7. LX - Switch Node Pin
  8. LX - Switch Node Pin
  9. LX - Switch Node Pin
  10. VCC - Supply Voltage Pin
  11. VCC - Supply Voltage Pin
  12. VCC - Supply Voltage Pin
  13. VCC - Supply Voltage Pin
  14. VOUT - Output Voltage Pin
  15. VOUT - Output Voltage Pin
  16. VOUT - Output Voltage Pin

Functional Features

  • Wide input voltage range for versatile applications
  • High efficiency conversion for reduced power consumption
  • Adjustable output voltage for flexibility
  • Overcurrent protection for enhanced safety
  • Soft-start function for controlled startup
  • Thermal shutdown protection for reliable operation

Advantages and Disadvantages

Advantages: - High efficiency results in energy savings - Wide input voltage range allows for compatibility with various power sources - Adjustable output voltage provides versatility - Overcurrent protection ensures device and system safety - Soft-start function prevents excessive inrush current during startup - Thermal shutdown protection prevents overheating

Disadvantages: - Limited maximum output current of 1.5A - Operating temperature range may not be suitable for extreme environments

Working Principles

The MP4558DQ-LF-P is a voltage regulator IC that converts an input voltage within the range of 2.7V to 5.5V to a regulated output voltage between 0.6V and VIN. It achieves this through a high-efficiency switching converter topology. The IC utilizes a feedback mechanism to maintain the desired output voltage by adjusting the duty cycle of the internal switch. This enables efficient power management while minimizing power losses.

Detailed Application Field Plans

The MP4558DQ-LF-P is commonly used in various applications, including but not limited to:

  1. Portable electronic devices: Provides regulated power supply for smartphones, tablets, and portable media players.
  2. IoT devices: Suitable for powering sensors, microcontrollers, and wireless communication modules in IoT applications.
  3. Battery-powered systems: Enables efficient power conversion in battery-operated devices such as handheld gaming consoles and remote controls.
  4. Industrial automation: Used in control systems, motor drives, and other industrial equipment requiring stable and efficient power supply.
  5. Automotive electronics: Suitable for powering infotainment systems, navigation units, and other automotive electronics.

Detailed and Complete Alternative Models

  1. MP4558DQ-LF-Z: Similar to MP4558DQ-LF-P, but available in a different package (SOT-23-6).
  2. MP4558DQ-LF-Q: Higher maximum output current of 2A, suitable for applications requiring higher power.
  3. MP4558DQ-LF-R: Lower switching frequency of 600kHz, ideal for applications sensitive to electromagnetic interference.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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Liste 10 perguntas e respostas comuns relacionadas à aplicação de MP4558DQ-LF-P em soluções técnicas

Sure! Here are 10 common questions and answers related to the application of MP4558DQ-LF-P in technical solutions:

  1. Question: What is the MP4558DQ-LF-P?
    Answer: The MP4558DQ-LF-P is a specific model of integrated circuit (IC) used for power management applications.

  2. Question: What is the typical input voltage range for the MP4558DQ-LF-P?
    Answer: The MP4558DQ-LF-P has a typical input voltage range of 4.5V to 18V.

  3. Question: What is the output current capability of the MP4558DQ-LF-P?
    Answer: The MP4558DQ-LF-P can provide an output current of up to 2A.

  4. Question: Can the MP4558DQ-LF-P be used in battery-powered applications?
    Answer: Yes, the MP4558DQ-LF-P can be used in battery-powered applications as it supports a wide input voltage range.

  5. Question: Does the MP4558DQ-LF-P have built-in protection features?
    Answer: Yes, the MP4558DQ-LF-P includes various protection features such as over-current protection, thermal shutdown, and under-voltage lockout.

  6. Question: What is the efficiency of the MP4558DQ-LF-P?
    Answer: The efficiency of the MP4558DQ-LF-P depends on the specific operating conditions and load requirements but is typically high due to its advanced design.

  7. Question: Can the MP4558DQ-LF-P be used in automotive applications?
    Answer: Yes, the MP4558DQ-LF-P is suitable for automotive applications as it meets the necessary standards and has a wide input voltage range.

  8. Question: What is the operating temperature range of the MP4558DQ-LF-P?
    Answer: The MP4558DQ-LF-P can operate within a temperature range of -40°C to 125°C.

  9. Question: Does the MP4558DQ-LF-P require external components for operation?
    Answer: Yes, the MP4558DQ-LF-P requires external components such as capacitors and resistors for proper operation.

  10. Question: Can the MP4558DQ-LF-P be used in low-power applications?
    Answer: While the MP4558DQ-LF-P is capable of delivering high output currents, it can also be used in low-power applications by adjusting the operating parameters and load requirements accordingly.

Please note that these answers are general and may vary depending on the specific application and design considerations.