NXP – PCA9410 and PCA9410A : 500mA DC-DC boost converter provides accurate regulation

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PCA9410: fixed 5.0V output voltage for use in NFC terminals

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NXP Semiconductor’s new PCA9410 and PCA9410A are highly efficient 3MHz step-up (boost) DC-DC converters. They convert input voltages ranging between 2.5V and 5.25V to a fixed output voltage of 5.0V. The output current limit is 500mA.

These 1.2mm x 1.2mm devices are optimised for battery-powered applications: high conversion efficiency of up to 94% helps to provide for extended battery life in any portable product design.

In addition, the devices’ switching frequency of 3MHz enables the use of a small inductor with a value of 1μH or less. The PCA9410 devices offer tightly controlled regulation, providing output voltage accuracy of ±2% at nominal and static conditions. Even over the full current, voltage and temperature range, the output is accurate to within ±3%. The PCA9410 totally disconnects the input from the output when disabled. The PCA9410A connects the input to the output when disabled.

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FEATURES

  • Current-mode controller
  • Soft-start function
  • Reverse-current protection
  • Over-current protection
  • Over-temperature protection

APPLICATIONS

  • NFC terminals

 
 
 
 

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