Monolithic Power Systems Inc.
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MP4689DN-LF-Z
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MP4689DN-LF-Z

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency - Low power consumption - Compact size - Wide input voltage range - Multiple protection features

Package: SOP-8

Essence: MP4689DN-LF-Z is a power management IC designed for efficient power conversion and management in various electronic devices.

Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

  • Input Voltage Range: 4.5V to 28V
  • Output Voltage Range: 0.8V to 5.5V
  • Maximum Output Current: 3A
  • Switching Frequency: 1.2MHz
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MP4689DN-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. SS: Soft-start pin
  6. SW: Switch pin
  7. PGND: Power ground pin
  8. VOUT: Output voltage pin

Functional Features

  • Wide input voltage range allows compatibility with various power sources.
  • High efficiency conversion ensures minimal power loss.
  • Multiple protection features such as overcurrent, overvoltage, and thermal shutdown enhance system reliability.
  • Soft-start function prevents excessive inrush current during startup.
  • Adjustable output voltage provides flexibility for different applications.

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings. - Compact size enables space-saving designs. - Wide input voltage range increases versatility. - Multiple protection features enhance system reliability.

Disadvantages: - Limited maximum output current may not be suitable for high-power applications. - SOP-8 package may require additional thermal management in certain cases.

Working Principles

The MP4689DN-LF-Z operates as a step-down (buck) converter. It uses a high-frequency switching circuit to efficiently convert the input voltage to a lower output voltage. The integrated control circuitry ensures stable and regulated output voltage, while the protection features safeguard the IC and the connected components from potential damage.

Detailed Application Field Plans

The MP4689DN-LF-Z is widely used in various electronic devices that require efficient power management. Some common application fields include:

  1. Portable electronic devices: Smartphones, tablets, portable media players.
  2. Industrial equipment: Test and measurement instruments, automation systems.
  3. Automotive electronics: Infotainment systems, navigation devices, lighting controls.
  4. Home appliances: Set-top boxes, routers, gaming consoles.

Detailed and Complete Alternative Models

  1. MP4689DN-LF-ZR: Similar specifications and features, but with a different package (DFN-8).
  2. MP4689DN-LF-ZT: Higher maximum output current (5A), suitable for more demanding applications.
  3. MP4689DN-LF-ZG: Lower cost variant with slightly reduced efficiency.

These alternative models provide options based on specific requirements and constraints.

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技術ソリューションにおける MP4689DN-LF-Z の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of MP4689DN-LF-Z in technical solutions:

  1. Q: What is MP4689DN-LF-Z? A: MP4689DN-LF-Z is a specific model of power management integrated circuit (PMIC) designed for use in various technical solutions.

  2. Q: What are the key features of MP4689DN-LF-Z? A: Some key features of MP4689DN-LF-Z include multiple voltage regulators, high efficiency, low quiescent current, and protection features like overcurrent and thermal shutdown.

  3. Q: What technical solutions can MP4689DN-LF-Z be used in? A: MP4689DN-LF-Z can be used in a wide range of applications, including portable devices, consumer electronics, industrial equipment, and automotive systems.

  4. Q: How many voltage regulators does MP4689DN-LF-Z have? A: MP4689DN-LF-Z has multiple voltage regulators, typically including a buck converter and one or more LDOs (low-dropout regulators).

  5. Q: What is the efficiency of MP4689DN-LF-Z? A: MP4689DN-LF-Z offers high efficiency, typically above 90%, which helps to minimize power losses and maximize battery life.

  6. Q: Does MP4689DN-LF-Z have any protection features? A: Yes, MP4689DN-LF-Z includes protection features such as overcurrent protection, thermal shutdown, and undervoltage lockout to ensure safe operation.

  7. Q: Can MP4689DN-LF-Z operate with a wide input voltage range? A: Yes, MP4689DN-LF-Z is designed to work with a wide input voltage range, typically from a few volts up to several tens of volts.

  8. Q: Is MP4689DN-LF-Z suitable for battery-powered applications? A: Yes, MP4689DN-LF-Z is well-suited for battery-powered applications due to its low quiescent current and high efficiency, which helps to conserve battery life.

  9. Q: What is the typical operating temperature range for MP4689DN-LF-Z? A: MP4689DN-LF-Z can typically operate within a temperature range of -40°C to +85°C, making it suitable for various environments.

  10. Q: Where can I find more information about MP4689DN-LF-Z? A: You can find more detailed information about MP4689DN-LF-Z in the datasheet provided by the manufacturer or on their official website.