TPS51463

TPS51463 www.ti.com SLUSAX2 – FEBRUARY 2012 3.3-V/5-V Input, D-CAP+™ Mode Synchronous Step-Down Integrated FETs Converter With 2-Bit VID Check for Samples: TPS51463 FEATURES 1 23 Integrated FETs Converter w/TI Proprietary D-CAP+™ Mode Architecture Minimum External Parts Count Support all MLCC Output Capacitor and SP/POSCAP Auto Skip Mode Selectable 700-kHz and 1-MHz Frequency Small 4 mm × 4 mm, 24-Pin, QFN Package APPLICATIONS Low-Voltage Applications Stepping Down from 5-V or 3.3-V Rail Notebook/Desktop Computers Intel® Chief River Platform ULV CPU System Agent DESCRIPTION The TPS51463 is a fully integrated synchronous buck regulator employing D-CAP+™. It is used for up to 5V step-down where system size is at its premium, performance and optimized BOM are must-haves. The TPS51463 fully supports the Intel® Chief River platform, a ULV/CPU system agent application with integrated 2-bit VID function. The TPS51463 also features two switching frequency settings (700 kHz and 1 MHz), skip mode, pre-bias startup, programmable external capacitor soft-start time/voltage transition time, output discharge, internal VBST Switch, 2-V reference (±1%), power good and enable. The TPS51463 is available in a 4 mm × 4 mm, 24pin, QFN package (Green RoHs compliant and Pb free) and is specified from -40°C to 85°C. +5V ENABLE VID0 VID1 PGOOD VIN 18 17 16 15 14 13 V5DRV V5FILT PGOOD VID1 VID0 EN 19 PGND 20 PGND 21 PGND 22 VIN 23 VIN 24 VIN TPS51463 BST 12 SW 11 SW 10 SW 9...