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RT9261-42CX from RICHTEK

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RT9261-42CX

Manufacturer: RICHTEK

VFM Step-up DC/DC Converter

Partnumber Manufacturer Quantity Availability
RT9261-42CX,RT926142CX RICHTEK 76930 In Stock

Description and Introduction

VFM Step-up DC/DC Converter **RT9261-42CX: A High-Performance LDO Regulator for Precision Applications**  

In today’s fast-evolving electronics landscape, reliable power management is critical for ensuring optimal performance in sensitive circuits. The **RT9261-42CX** stands out as a high-performance, low-dropout (LDO) voltage regulator designed to deliver stable and efficient power in a compact package.  

Engineered for precision, the RT9261-42CX provides a fixed **4.2V output** with an ultra-low dropout voltage, making it ideal for battery-powered devices, portable electronics, and embedded systems. Its **low quiescent current** minimizes power consumption, extending battery life in applications where energy efficiency is paramount.  

With a **high power supply rejection ratio (PSRR)**, the RT9261-42CX effectively filters out noise and ripple, ensuring clean power delivery to sensitive components such as microcontrollers, sensors, and RF modules. Its **fast transient response** further enhances stability, even under dynamic load conditions.  

Housed in a **small SOT-23 package**, the RT9261-42CX offers space-saving advantages without compromising performance. It includes built-in protection features such as **overcurrent and thermal shutdown**, safeguarding both the regulator and downstream circuitry from potential damage.  

Whether used in IoT devices, wearables, or industrial control systems, the RT9261-42CX provides a dependable power solution with minimal external components required. Its combination of efficiency, stability, and compact design makes it a preferred choice for engineers seeking a robust LDO regulator for demanding applications.  

For designers prioritizing precision and reliability, the RT9261-42CX delivers consistent performance, ensuring seamless operation in even the most critical electronic systems.

Application Scenarios & Design Considerations

VFM Step-up DC/DC Converter

Alternative Part Number

  • XC6206P422MR --: Low-dropout linear regulator with 4.2V fixed output in SOT-23, functionally similar to the RT9261-42CX and widely available.
  • AP2112K-4.2TRG1 --: 4.2V fixed-output LDO regulator in SOT-25 with low quiescent current, suitable drop-in replacement for small-package 4.2V regulation.
  • MIC5205-4.2YM5 --: 4.2V fixed LDO in SOT-23-5 with good stability and low noise, an established alternative for 4.2V linear regulation applications.

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