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MIC5245-3.1BM5 from MIC

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MIC5245-3.1BM5

Manufacturer: MIC, MICREL

150mA μCap CMOS LDO Regulator Preliminary Information

Partnumber Manufacturer Quantity Availability
MIC5245-3.1BM5,MIC524531BM5 MIC, MICREL 9000 In Stock

Description and Introduction

150mA μCap CMOS LDO Regulator Preliminary Information # Introducing the MIC5245-3.1BM5: A High-Performance LDO Voltage Regulator  

The **MIC5245-3.1BM5** is a low-dropout (LDO) voltage regulator designed for precision power management in a wide range of electronic applications. With a fixed output voltage of **3.1V** and a maximum output current of **150mA**, this compact regulator delivers stable, low-noise power to sensitive circuits, making it ideal for portable devices, embedded systems, and battery-powered applications.  

## Key Features  

- **Ultra-Low Dropout Voltage:** The MIC5245-3.1BM5 operates efficiently with a dropout voltage as low as **120mV**, ensuring reliable performance even with minimal input-to-output differentials.  
- **Low Quiescent Current:** Consuming only **20µA** of quiescent current, this regulator maximizes battery life in power-sensitive designs.  
- **High PSRR:** With a **power supply rejection ratio (PSRR)** of up to **75dB**, the device effectively filters out input voltage noise, providing clean power to critical components.  
- **Thermal and Short-Circuit Protection:** Built-in safeguards enhance reliability by preventing damage from overheating or excessive current draw.  
- **Compact SOT-23-5 Package:** The small footprint makes it suitable for space-constrained PCB designs.  

## Applications  

The MIC5245-3.1BM5 is well-suited for:  
- **Portable Electronics:** Smartphones, wearables, and IoT devices benefit from its low power consumption and stable output.  
- **Embedded Systems:** Microcontrollers, sensors, and RF modules require precise voltage regulation for optimal performance.  
- **Battery-Powered Devices:** Its low dropout voltage extends operational life in applications with fluctuating input voltages.  

## Conclusion  

Engineers seeking a reliable, high-efficiency LDO regulator will find the **MIC5245-3.1BM5** an excellent choice. Its combination of low noise, thermal protection, and compact design ensures robust performance in demanding environments. Whether for consumer electronics or industrial applications, this regulator provides the precision and efficiency needed for modern power management solutions.

Application Scenarios & Design Considerations

150mA μCap CMOS LDO Regulator Preliminary Information

Alternative Part Number

  • LP2985AIM5-3.1 --: Low-dropout 3.1V linear regulator in SOT-23-5 with similar current capability and pinout, widely available and well documented.
  • TLV70231PDBVR --: 3.1V fixed LDO in SOT-23-5 with low quiescent current and stable output, suitable drop-in for small-signal regulator applications.
  • AP2138N-3.1TRG1 --: 3.1V CMOS LDO regulator in SOT-23-5 package offering comparable dropout and load performance at low cost.

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