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PJ1117CW-3.3V from PROMAX

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PJ1117CW-3.3V

Manufacturer: PROMAX, Promax-Johnton, PROMAX-J

1 Amp Low Dropout Positive Voltage Regulator

Partnumber Manufacturer Quantity Availability
PJ1117CW-3.3V,PJ1117CW33V PROMAX, Promax-Johnton, PROMAX-J 2144 In Stock

Description and Introduction

1 Amp Low Dropout Positive Voltage Regulator **Introduction to the PJ1117CW-3.3V Voltage Regulator**  

The PJ1117CW-3.3V is a low-dropout (LDO) linear voltage regulator designed to provide a stable 3.3V output from a higher input voltage. Commonly used in electronic circuits, this component ensures reliable power delivery with minimal voltage fluctuations, making it ideal for sensitive applications such as microcontrollers, sensors, and communication modules.  

With a typical dropout voltage of around 1.2V, the PJ1117CW-3.3V efficiently regulates voltage even when the input supply is close to the desired output. It supports an input voltage range of up to 15V and delivers a maximum output current of 1A, depending on thermal conditions. The device features built-in overcurrent and thermal protection, enhancing system safety and longevity.  

Housed in a compact TO-252 (DPAK) package, the PJ1117CW-3.3V is suitable for space-constrained designs. Its simplicity and low external component requirement make it a popular choice for both prototyping and production environments. Whether used in consumer electronics, industrial controls, or embedded systems, this regulator offers a cost-effective solution for stable 3.3V power management.  

Engineers value the PJ1117CW-3.3V for its balance of performance, efficiency, and ease of integration, making it a versatile component in modern electronic designs.

Application Scenarios & Design Considerations

1 Amp Low Dropout Positive Voltage Regulator

Alternative Part Number

  • LM1117MPX-3.3 --: Industry-standard 3.3V 800mA LDO in SOT-223 with the same pinout and function as the PJ1117CW-3.3V, widely available and well documented.
  • AMS1117-3.3 --: Direct functional equivalent 3.3V 1A LDO regulator in SOT-223, commonly used as a drop-in replacement for 1117-series parts at lower cost.
  • LD1117S33TR --: 3.3V 800mA LDO in SOT-223 with matching pin configuration and electrical characteristics, suitable as a reliable alternative from a major manufacturer.
  • LM1117IMP-3.3 --: Industry-standard 3.3V 800mA LDO regulator with the same 1117 pinout and SOT-223 package, offering reliable performance and broad availability.

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