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MIC39101-3.3BM from MICREL

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MIC39101-3.3BM

Manufacturer: MICREL, MIC

1A Low-Voltage Low-Dropout Regulator

Partnumber Manufacturer Quantity Availability
MIC39101-3.3BM,MIC3910133BM MICREL, MIC 4734 In Stock

Description and Introduction

1A Low-Voltage Low-Dropout Regulator # **MIC39101-3.3BM: A High-Performance LDO Voltage Regulator for Precision Applications**  

The **MIC39101-3.3BM** is a high-performance, low-dropout (LDO) voltage regulator designed to deliver stable and efficient power management in a compact package. With an output voltage of **3.3V** and a maximum output current of **1A**, this regulator is ideal for applications requiring precise voltage regulation, low noise, and high reliability.  

Engineered for demanding environments, the MIC39101-3.3BM features an ultra-low dropout voltage of just **300mV at full load**, ensuring efficient operation even when the input voltage is close to the output level. This makes it particularly suitable for battery-powered devices, portable electronics, and embedded systems where power efficiency is critical.  

Key advantages of the MIC39101-3.3BM include:  
- **Low Quiescent Current**: Consuming only **75µA** during operation, it minimizes power loss, extending battery life in portable applications.  
- **Fast Transient Response**: Ensures stable performance under dynamic load conditions, making it ideal for high-speed digital circuits.  
- **High PSRR (Power Supply Rejection Ratio)**: Reduces noise and ripple from input sources, enhancing signal integrity in sensitive analog and RF circuits.  
- **Thermal and Overcurrent Protection**: Built-in safeguards prevent damage from excessive heat or current, improving system reliability.  

Available in a **SOT-223 package**, the MIC39101-3.3BM offers a compact footprint while maintaining excellent thermal performance. Its robust design and high accuracy (±1% output voltage tolerance) make it a preferred choice for industrial, automotive, telecommunications, and consumer electronics applications.  

For engineers seeking a dependable LDO regulator with superior efficiency and performance, the **MIC39101-3.3BM** provides an optimal solution for powering critical circuits with precision and reliability.

Application Scenarios & Design Considerations

1A Low-Voltage Low-Dropout Regulator

Alternative Part Number

  • LM3940IT-3.3 --: Pin-compatible 3.3V low-dropout linear regulator in TO-220, widely available and functionally equivalent to the MIC39101-3.3BM.
  • LP2951-33 --: 3.3V LDO regulator with similar current capability and adjustable/fixed output options, suitable drop-in replacement for many MIC39101 applications.
  • AMS1117-3.3 --: Common 3.3V LDO regulator with comparable dropout and current rating, low cost and broad availability as an alternative to the Micrel part.
  • LT1086CT-3.3 --: 3.3V low-dropout regulator with higher current rating and robust thermal performance, suitable when more headroom or reliability is needed.

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