Electronic Products & Technology

80V bidirectional buck-boost, dual-phase dc-dc controllers enhance performance

October 23, 2020  Stephen Law

RENESAS ISL81801 bidirectional buck-boost and ISL81802 dual buck 80V dc-dc controllers support the extra voltage margin needed for data centre servers, 48V telecom and rugged industrial equipment. ISL81801 device acts like a ‘UPS on a chip’ by enabling bidirectional current flow (forward or reverse) using constant-voltage and constant-current regulation. This allows a battery or super-capacitor to be charged and discharged using a single controller and power path. ISL81801 combines 80V buck-boost switching frequency (600 kHz) with small package (5mm x 5mm) and lets designers create ultra-compact, high-density power solutions. 

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