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MIC5239-1.5YS from MICREL

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MIC5239-1.5YS

Manufacturer: MICREL, MICREL, MIC

Low Quiescent Current 500mA μCap LDO Regulator

Partnumber Manufacturer Quantity Availability
MIC5239-1.5YS,MIC523915YS MICREL, MICREL, MIC 224 In Stock

Description and Introduction

Low Quiescent Current 500mA μCap LDO Regulator # **MIC5239-1.5YS: A High-Performance LDO Voltage Regulator for Precision Applications**  

The **MIC5239-1.5YS** is a high-performance, low-dropout (LDO) voltage regulator designed to deliver a stable 1.5V output with exceptional accuracy and efficiency. Engineered for applications requiring precise voltage regulation, this component ensures reliable performance in a wide range of electronic systems, from portable devices to industrial equipment.  

With a low dropout voltage of just 340mV at 150mA load, the MIC5239-1.5YS maximizes efficiency, making it ideal for battery-powered applications where extended runtime is critical. Its ultra-low quiescent current (typically 75µA) further enhances energy efficiency, reducing power consumption in standby or low-load conditions.  

The regulator features excellent line and load regulation, ensuring consistent output voltage despite fluctuations in input supply or varying load conditions. Additionally, built-in thermal shutdown and current limit protection safeguard the device and connected circuitry from potential damage due to overheating or excessive current draw.  

Housed in a compact **SOT-223-3** package, the MIC5239-1.5YS offers a space-saving solution without compromising performance. Its robust design makes it suitable for demanding environments, including automotive, medical, and industrial applications where reliability is paramount.  

Key Features:  
- **Fixed 1.5V output** with ±2% accuracy  
- **Low dropout voltage (340mV @ 150mA)**  
- **Ultra-low quiescent current (75µA typical)**  
- **Thermal shutdown and current limit protection**  
- **Stable with ceramic capacitors**  
- **Wide operating temperature range (-40°C to +125°C)**  

For engineers and designers seeking a dependable LDO regulator that combines precision, efficiency, and durability, the **MIC5239-1.5YS** stands out as an excellent choice for powering sensitive electronics.

Application Scenarios & Design Considerations

Low Quiescent Current 500mA μCap LDO Regulator

Alternative Part Number

  • LP2985AIM5-1.5 --: Low-dropout linear regulator with fixed 1.5V output in SOT-23-5, functionally similar to the MIC5239-1.5YS and widely available.
  • LT1763CS8-1.5 --: Low-noise 500mA LDO with fixed 1.5V output, comparable performance and current capability for the same application.
  • TPS7A4901DGNR --: Adjustable low-noise LDO that can be set to 1.5V, offering similar or better noise and PSRR characteristics as a design alternative.
  • MAX1793EUE15 --: 1.5V fixed-output LDO regulator offering similar voltage accuracy and current rating, usable as a functional substitute.
  • LP38693MP-1.5 --: 1.5V fixed LDO in a similar SOT-223 package with comparable current capability and low dropout, a common drop-in style replacement.
  • LT1963AEQ-1.5 --: 1.5V fixed low-dropout regulator with higher current rating and good stability, suitable when extra headroom and load margin are needed.
  • TPS7A4515 --: 1.5V fixed ultra-low-noise LDO with wide input range, a strong alternative for noise-sensitive analog or RF supply rails.

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