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MIC5255-3.1BM5 from MICREL

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MIC5255-3.1BM5

Manufacturer: MICREL, MIC

150mA Low Noise UCap CMOS LDO

Partnumber Manufacturer Quantity Availability
MIC5255-3.1BM5,MIC525531BM5 MICREL, MIC 7209 In Stock

Description and Introduction

150mA Low Noise UCap CMOS LDO **Introducing the MIC5255-3.1BM5: A High-Performance LDO Regulator for Precision Applications**  

The MIC5255-3.1BM5 is a high-performance, low-dropout (LDO) voltage regulator designed to deliver stable and efficient power management for a wide range of electronic applications. With a fixed output voltage of 3.1V and a compact SOT-23-5 package, this regulator is an excellent choice for space-constrained designs requiring reliable voltage regulation.  

Engineered for precision, the MIC5255-3.1BM5 offers an impressive dropout voltage of just 300mV at 150mA load, ensuring optimal performance even with minimal input-to-output differentials. Its low quiescent current of 75µA (typical) makes it ideal for battery-powered devices, extending operational life while maintaining efficiency.  

Key features of the MIC5255-3.1BM5 include built-in thermal shutdown and current-limiting protection, safeguarding against overheating and short-circuit conditions. Additionally, its fast transient response ensures stability under varying load conditions, making it suitable for sensitive analog and digital circuits.  

The regulator’s wide input voltage range of 2.7V to 5.5V allows compatibility with multiple power sources, including lithium-ion batteries and 3.3V rail supplies. Its low output noise and high power supply rejection ratio (PSRR) further enhance performance in noise-sensitive applications such as RF modules, IoT devices, and portable electronics.  

Designed for ease of integration, the MIC5255-3.1BM5 requires minimal external components, simplifying PCB layout and reducing overall system cost. Whether used in medical devices, industrial controls, or consumer electronics, this LDO regulator delivers consistent, high-quality power regulation with minimal design complexity.  

For engineers seeking a dependable, low-power voltage regulator in a compact footprint, the MIC5255-3.1BM5 stands out as a robust and efficient solution. Its combination of precision, protection features, and versatility makes it a valuable component in modern electronic designs.

Application Scenarios & Design Considerations

150mA Low Noise UCap CMOS LDO

Alternative Part Number

  • LP2985AIM5-3.1 --: Pin-compatible low-dropout linear regulator in SOT-23-5 with the same 3.1V fixed output and similar 150mA current rating, widely available and well documented.
  • TLV70231PDBVR --: Low-dropout regulator in SOT-23-5 delivering 3.1V at up to 300mA, offering better current headroom and low quiescent current as a direct functional replacement.
  • AP2138N-3.1TRG1 --: SOT-23-5 fixed 3.1V LDO regulator with comparable dropout and current capability, serving as a cost-effective alternative from a different series.

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