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MIC39150-1.8BT from MICREL

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MIC39150-1.8BT

Manufacturer: MICREL

1.5A, Low-Voltage Low-Dropout Regulator

Partnumber Manufacturer Quantity Availability
MIC39150-1.8BT,MIC3915018BT MICREL 410 In Stock

Description and Introduction

1.5A, Low-Voltage Low-Dropout Regulator **Introducing the MIC39150-1.8BT: A High-Performance LDO Regulator for Precision Applications**  

In today’s demanding electronic systems, stable and efficient power management is critical. The **MIC39150-1.8BT** from Microchip Technology stands out as a high-performance, low-dropout (LDO) voltage regulator designed to deliver exceptional reliability and precision for a wide range of applications.  

Engineered for low noise and high accuracy, the MIC39150-1.8BT provides a fixed **1.8V output** with a maximum output current of **1.5A**, making it ideal for powering sensitive analog and digital circuits. Its ultra-low dropout voltage—as low as **180mV at full load**—ensures efficient operation even when input voltages are close to the output level, reducing power dissipation and improving system efficiency.  

Key features of the MIC39150-1.8BT include:  
- **Low Noise Performance**: With a typical output noise of **40µVRMS**, this LDO is well-suited for RF, audio, and precision measurement applications where clean power is essential.  
- **High PSRR**: A power supply rejection ratio (PSRR) of **75dB at 1kHz** minimizes the impact of input voltage fluctuations, ensuring stable output under varying conditions.  
- **Fast Transient Response**: The regulator quickly adapts to load changes, maintaining consistent voltage levels for sensitive components.  
- **Thermal and Overcurrent Protection**: Built-in safeguards enhance system reliability by preventing damage from excessive current or temperature.  

Available in a compact **TO-263-5 package**, the MIC39150-1.8BT is designed for space-constrained applications while delivering robust thermal performance. Its wide operating temperature range (**-40°C to +125°C**) ensures dependable functionality in harsh environments.  

Whether used in industrial automation, telecommunications, or consumer electronics, the MIC39150-1.8BT provides a dependable power solution with the precision and efficiency required for modern designs. For engineers seeking a high-performance LDO regulator, this component offers an optimal balance of performance, reliability, and ease of integration.

Application Scenarios & Design Considerations

1.5A, Low-Voltage Low-Dropout Regulator

Alternative Part Number

  • LM3940IT-1.8 --: 1.8V low-dropout linear regulator in TO-220, similar current capability and pinout, widely available and drop-in compatible in most designs.
  • LT1085CT-1.8 --: 1.8V LDO regulator in TO-220 with higher current rating, good electrical match and robust thermal performance.
  • MC33269DT-1.8 --: 1.8V LDO regulator in DPAK/TO-220 family, comparable dropout and current specs, cost-effective alternative.
  • LP38692-1.8 --: 1.8V fixed LDO regulator in a comparable package with similar current capability, widely available and pin-compatible in most designs.
  • LT1963A-1.8 --: Low-noise 1.8V LDO with higher current rating and similar dropout performance, suitable as a drop-in upgrade.
  • TPS7A4518 --: 1.8V low-dropout regulator with low noise and good PSRR, a solid functional substitute for the MIC39150.

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