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MIC5209-3.3YS from MIC

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MIC5209-3.3YS

Manufacturer: MIC, MICREL, MICREL

500mA Low-Noise LDO Regulator

Partnumber Manufacturer Quantity Availability
MIC5209-3.3YS,MIC520933YS MIC, MICREL, MICREL 27146 In Stock

Description and Introduction

500mA Low-Noise LDO Regulator # **MIC5209-3.3YS: A Reliable Low-Dropout Linear Regulator for Precision Power Applications**  

The **MIC5209-3.3YS** is a high-performance, low-dropout (LDO) linear voltage regulator designed to deliver a stable 3.3V output with exceptional efficiency and minimal power dissipation. Engineered for precision power management, this regulator is ideal for applications requiring clean, noise-free voltage regulation in space-constrained environments.  

With a low dropout voltage of just **350mV at 500mA**, the MIC5209-3.3YS ensures reliable operation even when the input voltage is close to the output level, making it well-suited for battery-powered devices and energy-sensitive systems. Its **ultra-low quiescent current** enhances efficiency, extending battery life in portable electronics such as IoT sensors, wearables, and handheld instruments.  

The regulator features **high output accuracy (±2%)**, ensuring consistent performance across varying load conditions. Its built-in **thermal shutdown and current-limiting protection** safeguard against overheating and short circuits, improving system reliability. Additionally, the MIC5209-3.3YS offers excellent **power supply ripple rejection (PSRR)**, reducing noise interference in sensitive analog and digital circuits.  

Available in a compact **SOT-223-3 package**, the MIC5209-3.3YS is easy to integrate into PCB designs while providing efficient heat dissipation. Its robust design supports a wide **input voltage range (2.5V to 16V)**, making it versatile for diverse applications, including embedded systems, medical devices, and industrial controls.  

For engineers seeking a dependable, low-noise power solution, the **MIC5209-3.3YS** delivers precision regulation with minimal external components, simplifying design and reducing overall system cost. Its combination of performance, protection, and efficiency makes it a preferred choice for modern electronic designs.

Application Scenarios & Design Considerations

500mA Low-Noise 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 noise, widely available and cost-effective.
  • LM1117MPX-3.3 --: Common 3.3V LDO regulator with higher current rating, suitable replacement when board space allows and drop-in electrical compatibility is acceptable.
  • AP2112K-3.3TRG1 --: Low-dropout 3.3V regulator in SOT-23-5 with low quiescent current, good alternative for space-constrained designs needing stable 3.3V output.
  • AMS1117-3.3 --: Popular low-cost 3.3V LDO in SOT-223, easy to source and functionally similar for many 3.3V regulation applications.
  • LT1763CS8-3.3 --: Low-noise 3.3V LDO with comparable dropout and current rating, suitable for sensitive analog and RF supplies.
  • TPS7A4901DGNR --: High-PSRR 3.3V LDO with low noise and good transient response, a robust substitute for precision applications.

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