●The TPS51216-EP provides a complete power supply for DDR2, DDR3 and DDR3L 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 TPS51216-EP employs D-CAP mode coupled with 300 kHz/400 kHz frequencies for ease-of-use and fast transient response. The VTTREF tracks VDDQ/2 within excellent 0.8% accuracy. The VTT, which provides 2-A sink/source peak current capabilities, requires only 10-µF of ceramic capacitance. In addition, a dedicated LDO supply input is available.
●The TPS51216-EP provides rich useful functions as well as excellent power supply performance. It supports flexible power state control, placing VTT at high-Z in S3 and discharging VDDQ, VTT, and VTTREF (soft-off) in S4/S5 state.
●Programmable OCL with low-side MOSFET RDS(on) sensing, OVP/UVP/UVLO and thermal shutdown protections are also available.
●The TPS51216-EP is available in a 20-pin, 3 mm × 3 mm, WQFN package and is specified for junction temperature from -55°C to 125°C.
● 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-CAP Mode for Fast Transient Response
● Selectable 300-kHz/400-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
●Supports Defense, Aerospace, and Medical Applications
● Controlled Baseline
● One Assembly/Test Site
● One Fabrication Site
● Available in Military (-55°C to 125°C) Temperature Range(1)
● Extended Product Life Cycle
● Extended Product-Change Notification
● Product Traceability
