International Rectifier recently introduced the IR3720 output power monitor IC with digital I²C interface for low-voltage DC-DC converters.
As a result of its patent-pending TruePower technology, the device achieves high current accuracy (0,2% typical error) over all input voltage and load ranges. The output current or voltage is communicated to the system controller through a digital I²C interface to provide highly effective power management.
The IR3720 monitors the output filter inductor current in buck or multiphase converters from 0,5 V to 1,8 V and provides designers with the option of using resistive sensing or inductor DCR current sensing with an internal thermal compensation feature.
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