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MIC4576WU from MICREL

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MIC4576WU

Manufacturer: MICREL, MIC

200kHz Simple 3A Buck Regulator

Partnumber Manufacturer Quantity Availability
MIC4576WU MICREL, MIC 4430 In Stock

Description and Introduction

200kHz Simple 3A Buck Regulator **Introducing the MIC4576WU: High-Efficiency Step-Down Voltage Regulator**  

The MIC4576WU is a high-performance, step-down switching voltage regulator designed to deliver efficient power conversion for a wide range of electronic applications. With its compact form factor and robust design, this component is ideal for systems requiring stable and reliable power management, including embedded systems, industrial controls, and consumer electronics.  

Engineered for efficiency, the MIC4576WU features a synchronous rectification architecture that minimizes power loss, achieving up to 95% efficiency under optimal conditions. Its wide input voltage range of 4.5V to 30V makes it versatile for various power sources, while the adjustable output voltage (down to 0.8V) ensures compatibility with low-voltage ICs and processors.  

The regulator’s integrated MOSFETs and fixed-frequency PWM operation contribute to reduced external component count, simplifying board design and lowering overall system costs. Additionally, built-in protection features such as thermal shutdown, overcurrent protection, and under-voltage lockout enhance reliability in demanding environments.  

With a switching frequency of up to 500kHz, the MIC4576WU supports fast transient response, making it suitable for dynamic load conditions. Its small footprint and high power density further enable space-constrained designs without compromising performance.  

Whether used in battery-powered devices, telecom infrastructure, or automotive electronics, the MIC4576WU offers a dependable and efficient power solution. Its combination of high efficiency, robust protection, and design flexibility makes it a preferred choice for engineers seeking a reliable voltage regulator for modern electronic systems.  

For designers looking to optimize power management with minimal complexity, the MIC4576WU stands out as a high-performance, cost-effective solution.

Application Scenarios & Design Considerations

200kHz Simple 3A Buck Regulator

Alternative Part Number

  • LM2596S-ADJ --: Widely available adjustable step-down regulator with similar current rating and function, easy drop-in replacement in many designs.
  • LM2576S-ADJ --: Classic 3A adjustable buck regulator with similar pinout and performance, mature and well documented.
  • MP1584EN --: Compact high-efficiency adjustable buck converter suitable for similar step-down applications with lower external component count.
  • LT1376CS8 --: Adjustable buck regulator with comparable input voltage range and switching frequency, good performance substitute.
  • MC34063A --: Versatile general-purpose switching regulator usable in buck configurations, low cost and broadly stocked alternative.

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