TPS51716

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design TPS51716 SLUSB94A – OCTOBER 2012 – REVISED SEPTEMBER 2016 TPS51716 Complete DDR2, DDR3, DDR3L, LPDDR3, and DDR4 Memory Power Solution Synchronous Buck Controller, 2-A LDO, With Buffered Reference 1 Features 1 Synchronous Buck Controller (VDDQ) – Conversion Voltage Range: 3 to 28 V – Output Voltage Range: 0.7 to 1.8 V – 0.8% VREF Accuracy – D-CAP2™ Mode for Ceramic Output Capacitors – Selectable 500-kHz/670-kHz Switching Frequencies – Optimized Efficiency at Light and Heavy Loads With Auto-Skip Function – Supports Soft-Off in S4/S5 States – OCL/OVP/UVP/UVLO Protections – Powergood Output 2-A LDO (VTT), Buffered Reference (VTTREF) – 2-A (Peak) Sink and Source Current – Requires Only 10-μF of Ceramic Output Capacitance – Buffered, Low Noise, 10-mA VTTREF Output – 0.8% VTTREF, 20-mV VTT Accuracy – Support High-Z in S3 and Soft-Off in S4/S5 Thermal Shutdown 20-Pin, 3 mm × 3 mm, WQFN Package 2 Applications DDR2, DDR3, DDR3L, LPDDR3, and DDR4 Memory Power Supplies SSTL_18, SSTL_15, SSTL_135, and HSTL Termination 3 Description The TPS51716 provides a complete power supply for DDR2, DDR3, DDR3L, LPDDR3, 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/source tracking LDO (VTT) and buffered low noise reference (VTTREF). The TPS51716 employs D-CAP2 mode coupled with 500 kHz...