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MIC4576-3.3WU from MICREL

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MIC4576-3.3WU

Manufacturer: MICREL, MIC

200kHz Simple 3A Buck Regulator

Partnumber Manufacturer Quantity Availability
MIC4576-3.3WU,MIC457633WU MICREL, MIC 1515 In Stock

Description and Introduction

200kHz Simple 3A Buck Regulator # MIC4576-3.3WU: A High-Performance Voltage Regulator for Precision Applications  

In today's fast-evolving electronics landscape, reliable power management is critical for ensuring optimal performance in embedded systems, IoT devices, and industrial applications. The **MIC4576-3.3WU** from Microchip Technology stands out as a high-efficiency, low-dropout (LDO) voltage regulator designed to deliver stable and precise 3.3V output with minimal power loss.  

Engineered for demanding environments, the MIC4576-3.3WU offers a robust solution with a dropout voltage as low as 340mV at 1A load current. Its high accuracy (±2% over line, load, and temperature variations) makes it ideal for sensitive circuits requiring consistent voltage regulation. The device supports an input voltage range of 4.3V to 16V, accommodating a variety of power sources while maintaining efficiency.  

Key features include built-in thermal shutdown and current limit protection, safeguarding against overheating and short circuits. With a low quiescent current of just 1.5mA (typical), the regulator minimizes power consumption, making it suitable for battery-operated and energy-efficient designs. Additionally, its fast transient response ensures stability even under dynamic load conditions.  

The MIC4576-3.3WU comes in a compact **TO-263-5 (D2PAK)** package, providing excellent thermal dissipation for high-power applications. Its ease of integration and minimal external component requirements simplify PCB design, reducing development time and cost.  

Whether used in automotive electronics, industrial control systems, or portable devices, the MIC4576-3.3WU delivers dependable performance, combining efficiency, protection, and precision in a single solution. For engineers seeking a high-quality voltage regulator, this component offers an optimal balance of reliability and performance.

Application Scenarios & Design Considerations

200kHz Simple 3A Buck Regulator

Alternative Part Number

  • LM2596S-3.3 --: Widely available 3.3V step-down regulator in TO-263 with similar current rating and pinout, easy drop-in replacement.
  • LT1376CS8-3.3 --: 3.3V buck regulator with comparable switching performance and thermal characteristics, suitable for similar applications.
  • MC34063A --: Versatile adjustable switching regulator that can be configured for 3.3V output, low cost and widely stocked alternative.
  • LM2576S-3.3 --: Pin-compatible 3A step-down regulator with fixed 3.3V output, widely available and a common drop-in replacement for the MIC4576 series.
  • AP1501-33 --: 3A step-down DC-DC converter with 3.3V fixed output in a TO-263 package, providing a cost-effective alternative with similar electrical characteristics.

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