Monolithic Power Systems Inc.
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MPQ4485GU-LS-AEC1-Z

MPQ4485GU-LS-AEC1-Z

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency - Low standby power consumption - Wide input voltage range - Overcurrent protection - Thermal shutdown protection

Package: QFN-16

Essence: The MPQ4485GU-LS-AEC1-Z is a power management IC designed for various applications that require efficient power conversion and management.

Packaging/Quantity: The MPQ4485GU-LS-AEC1-Z is available in a QFN-16 package. It is typically sold in reels of 2500 units.

Specifications

  • Input Voltage Range: 4.5V to 24V
  • Output Voltage Range: 0.8V to 5.5V
  • Maximum Output Current: 2A
  • Switching Frequency: 500kHz
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MPQ4485GU-LS-AEC1-Z has the following pin configuration:

  1. VIN: Input voltage
  2. SW: Switching node
  3. GND: Ground
  4. FB: Feedback voltage
  5. EN: Enable control
  6. SS: Soft-start capacitor
  7. PGND: Power ground
  8. VCC: Supply voltage
  9. LX: Inductor connection
  10. COMP: Compensation network
  11. BST: Bootstrap capacitor
  12. PG: Power good indicator
  13. AGND: Analog ground
  14. SS/TR: Soft-start/Tracking control
  15. OCSET: Overcurrent protection threshold setting
  16. UVLO: Undervoltage lockout

Functional Features

  • Wide input voltage range allows for versatile applications.
  • High efficiency ensures minimal power loss during conversion.
  • Low standby power consumption reduces energy waste.
  • Overcurrent protection safeguards the circuit and connected devices.
  • Thermal shutdown protection prevents overheating.

Advantages

  • High efficiency results in reduced power consumption and longer battery life.
  • Wide input voltage range allows for compatibility with various power sources.
  • Overcurrent protection ensures the safety of the circuit and connected devices.
  • Thermal shutdown protection prevents damage due to excessive heat.

Disadvantages

  • Limited maximum output current may not be suitable for high-power applications.
  • QFN-16 package may require specialized equipment for soldering and handling.

Working Principles

The MPQ4485GU-LS-AEC1-Z operates as a step-down (buck) converter, converting a higher input voltage to a lower output voltage. It utilizes a switching regulator topology to achieve high efficiency. The IC incorporates control circuitry, power MOSFETs, and other components necessary for power management.

Detailed Application Field Plans

The MPQ4485GU-LS-AEC1-Z is commonly used in the following applications:

  1. Portable electronic devices
  2. Battery-powered systems
  3. Industrial automation
  4. Automotive electronics
  5. LED lighting

Alternative Models

Here are some alternative models that offer similar functionality:

  1. MPQ4486GU-LS-AEC1-Z
  2. MPQ4487GU-LS-AEC1-Z
  3. MPQ4488GU-LS-AEC1-Z
  4. MPQ4489GU-LS-AEC1-Z

These models have comparable specifications and can be considered as alternatives to the MPQ4485GU-LS-AEC1-Z.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de MPQ4485GU-LS-AEC1-Z en soluciones técnicas

  1. What is the input voltage range for MPQ4485GU-LS-AEC1-Z?
    - The input voltage range for MPQ4485GU-LS-AEC1-Z is 4.5V to 65V.

  2. What is the maximum output current of MPQ4485GU-LS-AEC1-Z?
    - The maximum output current of MPQ4485GU-LS-AEC1-Z is 3A.

  3. Can MPQ4485GU-LS-AEC1-Z be used in automotive applications?
    - Yes, MPQ4485GU-LS-AEC1-Z is designed for automotive applications and meets AEC-Q100 Grade 1 standards.

  4. What is the switching frequency of MPQ4485GU-LS-AEC1-Z?
    - The switching frequency of MPQ4485GU-LS-AEC1-Z is adjustable from 200kHz to 2.2MHz.

  5. Does MPQ4485GU-LS-AEC1-Z have overcurrent protection?
    - Yes, MPQ4485GU-LS-AEC1-Z features cycle-by-cycle current limit and hiccup mode short-circuit protection.

  6. Is MPQ4485GU-LS-AEC1-Z suitable for LED lighting applications?
    - Yes, MPQ4485GU-LS-AEC1-Z is well-suited for LED lighting applications due to its high efficiency and dimming capabilities.

  7. What is the thermal performance of MPQ4485GU-LS-AEC1-Z?
    - MPQ4485GU-LS-AEC1-Z features a thermal shutdown function to prevent overheating.

  8. Can MPQ4485GU-LS-AEC1-Z operate in a wide temperature range?
    - Yes, MPQ4485GU-LS-AEC1-Z has an operating temperature range of -40°C to 125°C.

  9. Does MPQ4485GU-LS-AEC1-Z require external compensation components?
    - No, MPQ4485GU-LS-AEC1-Z has integrated compensation and does not require external components.

  10. Is MPQ4485GU-LS-AEC1-Z available in a small package for space-constrained applications?
    - Yes, MPQ4485GU-LS-AEC1-Z is offered in a compact QFN package for space-constrained designs.