Monolithic Power Systems Inc.
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MP1542DK-LF-Z
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MP1542DK-LF-Z

Product Overview

Category: Voltage Regulator
Use: Power management
Characteristics: High efficiency, compact size
Package: DFN-10
Essence: Step-down synchronous rectified buck converter
Packaging/Quantity: Tape & Reel, 3000 units

Specifications

  • Input Voltage Range: 4.5V to 60V
  • Output Voltage Range: 0.6V to 36V
  • Maximum Output Current: 3A
  • Switching Frequency: 100kHz to 2MHz
  • Efficiency: Up to 95%

Detailed Pin Configuration

  1. VIN - Input voltage
  2. PGND - Power ground
  3. SW - Switch node
  4. FB - Feedback voltage
  5. COMP - Compensation
  6. SS/TRK - Soft-start/tracking
  7. EN - Enable
  8. VCC - Bias supply
  9. BOOT - Bootstrap
  10. LX - Inductor connection

Functional Features

  • Wide input voltage range
  • Adjustable output voltage
  • Integrated power MOSFETs
  • Overcurrent protection
  • Thermal shutdown
  • Soft-start capability

Advantages and Disadvantages

Advantages: - High efficiency - Small form factor - Wide input voltage range

Disadvantages: - Limited maximum output current - Higher cost compared to non-synchronous regulators

Working Principles

The MP1542DK-LF-Z is a step-down synchronous rectified buck converter that efficiently converts higher input voltages to lower output voltages. It utilizes pulse-width modulation (PWM) to control the power switches and regulate the output voltage.

Detailed Application Field Plans

The MP1542DK-LF-Z is suitable for various applications including: - Industrial power supplies - Automotive electronics - Battery-powered systems - LED lighting - Distributed power systems

Detailed and Complete Alternative Models

  • LM2675
  • LT1763
  • TPS5430

In conclusion, the MP1542DK-LF-Z is a versatile voltage regulator with a wide input voltage range and high efficiency, making it suitable for diverse power management applications.

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10个与MP1542DK-LF-Z在技术解决方案中的应用相关的常见问题及解答

  1. What is the MP1542DK-LF-Z?

    • The MP1542DK-LF-Z is a high-frequency, synchronous rectified, step-down switch mode converter with built-in internal power MOSFETs.

  2. What is the input voltage range of the MP1542DK-LF-Z?

    • The input voltage range of the MP1542DK-LF-Z is 4.5V to 60V.

  3. What is the output current capability of the MP1542DK-LF-Z?

    • The MP1542DK-LF-Z can deliver up to 3A of continuous output current.

  4. What is the switching frequency of the MP1542DK-LF-Z?

    • The switching frequency of the MP1542DK-LF-Z is adjustable from 200kHz to 1.2MHz.

  5. What are the typical applications for the MP1542DK-LF-Z?

    • Typical applications for the MP1542DK-LF-Z include point-of-load regulation in distributed power systems, battery-powered equipment, and other general-purpose step-down voltage conversion applications.

  6. Does the MP1542DK-LF-Z have overcurrent protection?

    • Yes, the MP1542DK-LF-Z features cycle-by-cycle current limit and hiccup mode short-circuit protection.

  7. What is the operating temperature range of the MP1542DK-LF-Z?

    • The MP1542DK-LF-Z has an operating temperature range of -40°C to +125°C.

  8. Is the MP1542DK-LF-Z RoHS compliant?

    • Yes, the MP1542DK-LF-Z is RoHS compliant.

  9. What type of package does the MP1542DK-LF-Z come in?

    • The MP1542DK-LF-Z is available in a 10-pin MSOP package.

  10. Can the MP1542DK-LF-Z be used in automotive applications?

    • Yes, the MP1542DK-LF-Z is suitable for use in automotive applications, such as infotainment systems, advanced driver-assistance systems (ADAS), and more.