Monolithic Power Systems Inc.
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MP4350DQ-LF-Z
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MP4350DQ-LF-Z

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics:
    • High efficiency voltage regulator
    • Low dropout voltage
    • Small package size
    • Wide input voltage range
  • Package: QFN-16
  • Essence: Voltage Regulator IC
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 2.5V to 6.5V
  • Output Voltage Range: 0.8V to 5.5V
  • Output Current: Up to 3A
  • Dropout Voltage: 200mV at 1A
  • Quiescent Current: 60µA
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MP4350DQ-LF-Z has a total of 16 pins arranged as follows:

  1. VIN: Input voltage pin
  2. EN: Enable pin
  3. FB: Feedback pin
  4. GND: Ground pin
  5. PGND: Power ground pin
  6. SW: Switching node pin
  7. SW: Switching node pin
  8. SW: Switching node pin
  9. SW: Switching node pin
  10. VOUT: Output voltage pin
  11. VOUT: Output voltage pin
  12. VOUT: Output voltage pin
  13. VOUT: Output voltage pin
  14. PGND: Power ground pin
  15. PGND: Power ground pin
  16. PGND: Power ground pin

Functional Features

  • High efficiency conversion
  • Fast transient response
  • Overcurrent protection
  • Thermal shutdown protection
  • Adjustable output voltage
  • Soft start function

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power consumption - Wide input voltage range allows for versatile applications - Small package size saves board space - Fast transient response ensures stable output voltage

Disadvantages: - Dropout voltage may limit performance in low input voltage scenarios - Quiescent current could be lower for ultra-low power applications

Working Principles

The MP4350DQ-LF-Z is a voltage regulator IC that converts an input voltage within the range of 2.5V to 6.5V to a regulated output voltage between 0.8V and 5.5V. It utilizes a switching regulator topology to achieve high efficiency conversion. The feedback mechanism adjusts the duty cycle of the internal switch to maintain the desired output voltage. The device also incorporates overcurrent protection and thermal shutdown features to ensure safe operation.

Detailed Application Field Plans

The MP4350DQ-LF-Z is suitable for various applications, including but not limited to: - Portable electronic devices - Battery-powered systems - IoT devices - Industrial automation - Automotive electronics

Detailed and Complete Alternative Models

  1. MP4360DQ-LF-Z: Similar specifications with higher output current capability (up to 4A)
  2. MP4340DQ-LF-Z: Similar specifications with lower dropout voltage (150mV at 1A)
  3. MP4375DQ-LF-Z: Similar specifications with adjustable output voltage via external resistors

These alternative models provide flexibility to meet specific requirements while maintaining similar characteristics to the MP4350DQ-LF-Z.

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Maglista ng 10 karaniwang tanong at sagot na nauugnay sa aplikasyon ng MP4350DQ-LF-Z sa mga teknikal na solusyon

Sure! Here are 10 common questions and answers related to the application of MP4350DQ-LF-Z in technical solutions:

  1. Question: What is the maximum input voltage for MP4350DQ-LF-Z?
    Answer: The maximum input voltage for MP4350DQ-LF-Z is 36V.

  2. Question: What is the output current capability of MP4350DQ-LF-Z?
    Answer: MP4350DQ-LF-Z has an output current capability of up to 3A.

  3. Question: Can MP4350DQ-LF-Z operate in a wide temperature range?
    Answer: Yes, MP4350DQ-LF-Z can operate in a wide temperature range from -40°C to 125°C.

  4. Question: Does MP4350DQ-LF-Z have built-in protection features?
    Answer: Yes, MP4350DQ-LF-Z includes built-in protection features such as overcurrent protection, thermal shutdown, and undervoltage lockout.

  5. Question: What is the efficiency of MP4350DQ-LF-Z?
    Answer: MP4350DQ-LF-Z has a high efficiency of up to 95%.

  6. Question: Can MP4350DQ-LF-Z be used in automotive applications?
    Answer: Yes, MP4350DQ-LF-Z is suitable for automotive applications due to its wide temperature range and robust protection features.

  7. Question: Is MP4350DQ-LF-Z compatible with both step-up and step-down configurations?
    Answer: Yes, MP4350DQ-LF-Z can be used in both step-up (boost) and step-down (buck) configurations.

  8. Question: What is the typical switching frequency of MP4350DQ-LF-Z?
    Answer: The typical switching frequency of MP4350DQ-LF-Z is around 500kHz.

  9. Question: Can MP4350DQ-LF-Z be used in battery-powered applications?
    Answer: Yes, MP4350DQ-LF-Z is suitable for battery-powered applications as it supports a wide input voltage range and has low quiescent current.

  10. Question: Does MP4350DQ-LF-Z require external compensation components?
    Answer: No, MP4350DQ-LF-Z is internally compensated and does not require any external compensation components.

Please note that these answers are based on general information and it's always recommended to refer to the datasheet and application notes for specific details and guidelines.