TPS40428

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS40428 SLUSBV0A – MAY 2014 – REVISED JULY 2014 TPS40428 Dual Output, 2-Phase, Stackable PMBus™ Synchronous Buck Driverless Controller with Adaptive Voltage Scaling (AVS) Bus 1 Features 1 Smart Power Mode in Factory Default (Compatible with TI Smart Power Stage CSD95378B and Pinfor-Pin Equivalent to TPS40425 – Non-Smart Power Mode in Factory Default) Single Supply Operation: 4.5 V to 20 V VOUT from 0.6 V Dual or Multi-Phase Synchronous Buck Controller Individual High-Speed AVS Interface Fast Transient Response Stackable up to Four Phases – 2-, 3-, or 4-Phase Interleaved Phase Shifts – Accurate Current Sharing PMBus Interface Capability – Margining Up/Down with 2-mV Step – Programmable Fault Limit and Response – ±0.8% VOUT – Accuracy Current Monitoring – ±3°C External Temperature Monitoring In Smart Power Mode – Programmable UVLO ON/OFF Thresholds – Programmable Soft-Start Time, Turn-On Delay, and Turn-Off Delay On-Chip Non-Volatile Memory (NVM) to Store Custom Configurations 0.6-V Reference Voltage with 0.5% Accuracy from –40°C to 125°C Programmable ƒSW from 200 kHz to 1.5 MHz Supports Pre-biased Output Differential Remote Sensing Synchronization to an Extermal Clock OC/OV/UV/OT Fault Protection 40-Pin, 6 mm × 6 mm, QFN Package 2 Applications Wireless Infrastructure Switcher/Router Networking/Server/Storage 3 Description The TPS40428 device is a PMBu...