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NCP1423DMR2 from ON,ON Semiconductor

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NCP1423DMR2

Manufacturer: ON

400 mA Sync−Rect PFM Step−Up DC−DC Converter with True−Cutoff and Ring−Killer

Partnumber Manufacturer Quantity Availability
NCP1423DMR2 ON 5133 In Stock

Description and Introduction

400 mA Sync−Rect PFM Step−Up DC−DC Converter with True−Cutoff and Ring−Killer # Introduction to the NCP1423DMR2  

The NCP1423DMR2 is a high-efficiency, step-up DC-DC converter designed for low-power applications. This compact switching regulator integrates a synchronous rectifier, enabling improved efficiency and reduced external component count. With an input voltage range of 0.8V to 5.5V, it is well-suited for battery-powered devices such as portable electronics, wireless sensors, and energy-harvesting systems.  

Key features of the NCP1423DMR2 include a fixed switching frequency of 1.2 MHz, which helps minimize output ripple while allowing the use of small passive components. The device also incorporates soft-start functionality to limit inrush current during startup, enhancing system reliability. Its automatic pulse-frequency modulation (PFM) mode optimizes efficiency at light loads, extending battery life in power-sensitive applications.  

Housed in a miniature 10-pin DFN package, the NCP1423DMR2 offers a compact footprint ideal for space-constrained designs. Its ability to deliver up to 300 mA of output current makes it a versatile solution for powering low-voltage microcontrollers, sensors, and other embedded systems.  

Engineers seeking an efficient, small-form-factor boost converter for portable or battery-operated designs will find the NCP1423DMR2 a reliable and cost-effective choice.

Application Scenarios & Design Considerations

400 mA Sync−Rect PFM Step−Up DC−DC Converter with True−Cutoff and Ring−Killer

Alternative Part Number

  • TPS61020DRCR --: Boost converter with integrated switch in a similar power class; pin-compatible DFN package and widely available alternative to the NCP1423.
  • LTC3426ES6 --: High-efficiency step-up DC-DC converter with comparable input voltage range and output current, suitable as a functional replacement.
  • AP3012KTR-G1 --: Low-cost boost converter with similar switching frequency and current capability, offering a cost-effective drop-in style alternative.

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