The TPS53840 is a D-CAP+™ mode integrated step-down converter for DDR5 on-DIMM power supply in servers fully compliant to Jedec PMIC5020. It provides VDD, VDDQ and VPP voltages to the DRAM chips on the DIMM module with configurable current capability. SWA and SWB can be configured to be either a dual phase output (20A) or 2 single outputs (10A each), while SWC is a single phase rail capable of 11.5A. The converter also employs internal compensation for ease of use and reduce external components.
The converter provides a full set of telemetry, including input voltage, output voltage, output current and output power. Protection features include input and output over voltage, input and output undervoltage, buck overcurrent limit, and die over temperature.
TPS53840 with its significantly higher current capability than JEDEC PMIC5000, and configurable Auto power on or VR_EN pin, is suitable for CXL memory module applications.
The TPS53840 is packaged in a thermally-enhanced 35-pin QFN and operates from -40°C to +105°C.
The full data sheet and additional documents are available under NDA. Request now
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS53840 Integrated Step-Down Converter for DDR5 MRDIMM Server Power Supply datasheet | PDF | HTML | 30 Apr 2024 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN-HR (RWZ) | 35 | Ultra Librarian |
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.