The PCA9410 and PCA9411 series are 3MHz, step-up DC- DC converters which provide a maximum output current of 500mA. They convert input voltages ranging from 2.5V to 5.25V to a fixed output voltage of 5.0V in the case of the PCA9410, and 5.25V in the case of the PCA9411.
A PCA941x converter is ideal for use with an NFC frontend in a battery- powered product, as it ensures the transmitter’s output power is consistent over the entire output-voltage range of the battery.
The PCA941x devices’ high switching frequency of 3MHz allows for the use of a small 1μH inductor.
• Up to 94% efficiency
• ±3% output-voltage accuracy
• Current-mode control scheme
• Soft-start function