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MIC4576BU Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
MIC4576BUMICREL140Yes

MIC4576BU is a high-performance, step-down (buck) switching voltage regulator manufactured by Microchip Technology (formerly Micrel).

The MIC4576BU is a high-performance, step-down (buck) switching voltage regulator manufactured by Microchip Technology (formerly Micrel). Below are its key specifications, descriptions, and features:

Specifications:

  • Input Voltage Range: 4.5V to 40V
  • Output Voltage Range: Adjustable from 1.25V to 37V
  • Output Current: Up to 750mA
  • Switching Frequency: 100kHz (fixed)
  • Efficiency: Up to 85%
  • Dropout Voltage: Typically 1.5V at full load
  • Operating Temperature Range: -40°C to +125°C
  • Package: 8-pin DIP (PDIP)

Descriptions:

  • The MIC4576BU is a monolithic buck regulator designed for step-down DC-DC conversion applications.
  • It features internal current limiting, thermal shutdown, and an undervoltage lockout (UVLO) for protection.
  • The regulator operates in a fixed-frequency PWM mode for stable performance.

Features:

  • Wide Input Voltage Range (4.5V–40V)
  • Adjustable Output Voltage (1.25V–37V)
  • Internal Current Limiting & Thermal Shutdown
  • Low Dropout Operation
  • Undervoltage Lockout (UVLO)
  • Short-Circuit Protection
  • Stable with Low-ESR Capacitors

This regulator is commonly used in industrial, automotive, and consumer electronics for power supply applications requiring high efficiency and reliability.

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