TPS51916

Product Folder Order Now Technical Documents Tools & Software Support & Community Reference Design TPS51916 SLUSAE1F – DECEMBER 2010 – REVISED DECEMBER 2018 TPS51916 Complete DDR2, DDR3, DDR3L and DDR4 Memory Power Solution Synchronous Buck Controller, 2-A LDO, Buffered Reference 1 Features 1 Synchronous Buck Controller (VDDQ) – Conversion Voltage Range: 3 V to 28 V – Output Voltage Range: 0.7 V to 1.8 V – 0.8% VREF Accuracy – Selectable Control Architecture – D-CAP™ Mode for Fast Transient Response – D-CAP2™ Mode for Ceramic Output Capacitors – Selectable 300 kHz, 400 kHz, 500 kHz, or 670 kHz Switching Frequencies – Optimized Efficiency at Light and Heavy Loads with Auto-skip Function – Supports Soft-Off in S4 and S5 States – OCL/OVP/UVP/UVLO Protections – Powergood Output 2-A LDO(VTT), Buffered Reference(VTTREF) – 2-A (Peak) Sink and Source Current – Buffered, Low Noise, 10-mA VTTREF Output – 0.8% VTTREF, 20-mV VTT Accuracy – Supports High-Z (S3) and Soft-Off (S4, S5) Thermal Shutdown 20-Pin, 3 mm × 3 mm, QFN Package Create a WEBENCH Design 2 Applications Memory Power Supplies: DDR2, DDR3, DDR3L, DDR4 Termination: SSTL_18, SSTL_15, SSTL_135, HSTL 3 Description The TPS51916 device provides a complete power supply for DDR2, DDR3, DDR3L, and DDR4 memory systems in the lowest total cost and minimum space. It integrates a synchronous buck regulator controller (VDDQ) with a 2-A sink and 2-A source tracking LDO (VTT) and buffered low noise reference (VTTREF). ...