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MIC29151-3.3BU from MICREL

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MIC29151-3.3BU

Manufacturer: MICREL, MIC

High-Current Low-Dropout Regulators

Partnumber Manufacturer Quantity Availability
MIC29151-3.3BU,MIC2915133BU MICREL, MIC 1255 In Stock

Description and Introduction

High-Current Low-Dropout Regulators **Introducing the MIC29151-3.3BU: A High-Performance LDO Voltage Regulator**  

For engineers and designers seeking a reliable, high-performance voltage regulator, the MIC29151-3.3BU stands out as an exceptional choice. This low-dropout (LDO) linear regulator delivers a fixed 3.3V output with precision, efficiency, and robust protection features, making it ideal for a wide range of applications, from industrial systems to portable electronics.  

Designed for demanding environments, the MIC29151-3.3BU offers an ultra-low dropout voltage—typically just 350mV at full load—ensuring stable operation even when input voltage margins are tight. With a maximum output current of 1.5A, it efficiently powers microcontrollers, FPGAs, sensors, and other critical components without compromising performance.  

One of the key advantages of this regulator is its high accuracy, maintaining output voltage within ±1% over line, load, and temperature variations. This level of precision is crucial for sensitive circuits where voltage stability is non-negotiable. Additionally, built-in thermal shutdown and current-limiting protection enhance reliability, safeguarding both the regulator and downstream components from damage due to overheating or short circuits.  

The MIC29151-3.3BU operates across a wide input voltage range (4.3V to 26V), making it versatile for various power supply configurations. Its low quiescent current and fast transient response further contribute to energy efficiency and system responsiveness, particularly in battery-powered applications.  

Available in a compact TO-263-5 package, this regulator is designed for easy integration into space-constrained designs while providing excellent thermal performance. Whether used in automotive systems, medical devices, or embedded computing, the MIC29151-3.3BU delivers dependable power regulation with minimal external components.  

For engineers prioritizing efficiency, reliability, and precision, the MIC29151-3.3BU is a proven solution that meets the demands of modern electronic systems.

Application Scenarios & Design Considerations

High-Current Low-Dropout Regulators

Alternative Part Number

  • LM3940IT-3.3 --: Low-dropout 3.3V linear regulator with similar current capability and pin-compatible TO-220 style package, widely available and well documented.
  • LT1085CT-3.3 --: 3.3V low-dropout regulator rated for higher current, robust thermal performance, and a common drop-in style replacement for 3.3V LDO applications.
  • AMS1117-3.3 --: Very common 3.3V LDO regulator with broad availability and low cost, suitable for less demanding load conditions as a functional substitute.

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