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MIC5231-3.3YM5 from Micrel

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MIC5231-3.3YM5

Manufacturer: Micrel, MIC

Micropower μCap LDO Regulator

Partnumber Manufacturer Quantity Availability
MIC5231-3.3YM5,MIC523133YM5 Micrel, MIC 37710 In Stock

Description and Introduction

Micropower μCap LDO Regulator **Introducing the MIC5231-3.3YM5: A Compact, High-Performance LDO Regulator**  

For engineers and designers seeking a reliable, low-dropout (LDO) voltage regulator, the MIC5231-3.3YM5 stands out as an excellent choice. This high-performance component delivers a fixed 3.3V output with precision, making it ideal for applications requiring stable power in space-constrained environments.  

The MIC5231-3.3YM5 features an ultra-low dropout voltage of just 350mV at 150mA load, ensuring efficient operation even when input voltages are close to the output level. With a low quiescent current of 75µA, it minimizes power consumption, extending battery life in portable devices. Its high PSRR (Power Supply Rejection Ratio) of 70dB at 1kHz enhances noise immunity, making it suitable for sensitive analog and digital circuits.  

Housed in a compact SOT-23-5 package, this LDO regulator is designed for modern PCB layouts where space is at a premium. It also includes built-in protection features such as thermal shutdown and current limiting, safeguarding against overheating and short circuits.  

Applications for the MIC5231-3.3YM5 span across consumer electronics, IoT devices, medical instruments, and embedded systems where stable voltage regulation is critical. Whether powering microcontrollers, sensors, or wireless modules, this regulator ensures consistent performance under varying load conditions.  

Engineers will appreciate its ease of use—requiring only a small input capacitor for stability—and its ability to operate over a wide input voltage range of 2.7V to 16V. The MIC5231-3.3YM5 combines efficiency, reliability, and compact design, making it a versatile solution for next-generation electronic designs.  

For projects demanding precision power management in a small footprint, the MIC5231-3.3YM5 delivers uncompromising performance.

Application Scenarios & Design Considerations

Micropower μCap LDO Regulator

Alternative Part Number

  • LP2985AIM5-3.3 --: Pin-compatible 3.3V low-dropout regulator in SOT-23-5 with similar current capability and low quiescent current, widely available and a common drop-in replacement.
  • TLV70233PDBVR --: 3.3V LDO in SOT-23-5 with low dropout and low IQ, suitable substitute for the MIC5231 in portable low-power designs.
  • AP2112K-3.3TRG1 --: 3.3V CMOS LDO in SOT-23-5 with 600mA capability and low quiescent current, a cost-effective alternative with similar pinout and function.

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