ir38063 1 www.irf.com ? 2014 international rectifier submit datasheet feedback april 28, 2014 highly integrated 25a single-input voltage, synchronous buck regulator with pmbus interface preliminary datasheet features description ? internal ldo allows single 21v operation ? output voltage range: 0.5v to 0.875*pvin ? 0.5% accurate reference voltage ? programmable switching frequency up to 1.5mhz using rt/sync pin or pmbus ? internal soft-start wi th pre-bias start-up ? enable input with voltage monitoring capability ? remote sense amplifier with true differential voltage sensing ? fast mode i2c and 400 khz pmbus interface for sequencing, margining and telemetry. ? pmbus configurable fault thresholds for input uvlo, output ovp, ocp and thermal shutdown. ? thermally compensated pulse-by-pulse current limit and hiccup mode over current protection ? optional light load efficiency mode with reduced switching frequency ? external synchronization with smooth clocking ? dedicated output voltage sensing protection which remains active even when enable is low. ? integrated mosfet driv ers and bootstrap diode ? operating junction temp: -40ocIR38063Mtrpbf ? ?? advanced information
b p 2 ww w b asic a p fig p inout d w .irf.com ? p plicat ure 1: typi c d iagra m f ? 2014 intern a ion c al a pplicati o m f igure 3: ir 3 a tional rectifi e o n circuit 3 8063 packa e r s ge (top vie w submit data s figur e w ) 5mm x 7 m s heet feedb a e 2: perfor m m m pqfn ir3806 3 a ck apri m ance curve 3 l 28, 2014 advanced information
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