TPS51216RUKR Description

For DDR2, DDR3, and DDR3L memory systems, the TPS51216 offers a full power supply with the lowest total cost and least amount of physical space. It incorporates a 2-A sink/source tracking LDO (VTT), a buffered low noise reference, and a synchronous buck regulator controller (VDDQ) (VTTREF). For simplicity of usage and quick transient response, the TPS51216 uses D-CAPTM mode in conjunction with 300 kHz/400 kHz frequencies. The good tracking accuracy of the VTTREF is 0.8 percent for VDDQ/2. The VTT only needs 10-mF of ceramic capacitance to achieve 2-A sink/source peak current capabilities. There is also a specific LDO supply input available.

TPS51216RUKR Features

• Conversion Voltage Range: 3 V to 28 V 

• Output Voltage Range: 0.7 V to 1.8 V

• 0.8% VREF Accuracy

• D-CAP? Mode for Fast Transient Response

• Selectable 300 kHz/400 kHz Switching Frequencies

• OCL/OVP/UVP/UVLO Protections

TPS51216RUKR Applications

• DDR2/DDR3/DDR3L Memory Power Supplies

• SSTL_18, SSTL_15, SSTL_135 and HSTL Termination