Dual-channel multiphase step-down controller (up to 8 phases: 6+2 or 5+3) with D-CAP+ control, PMBus telemetry and on-chip NVM. Covers 4.5-17 V in, 0.25-2.8125 V out at up to 300 A, switching 300 kHz-1 MHz in a 5x5 mm 40-pin WQFN. Undershoot-reduction and dynamic phase shedding cut output capacitance and hold efficiency across light and heavy loads, so AI-accelerator and FPGA core rails get tighter transient response with a smaller BOM; NVM stores the tuned configuration and trims external parts. Proven in TI reference designs for Xilinx Versal ACAP and Virtex UltraScale+ 200-A rails (PMP22165, TIDA-050020). Sourcing note: pair with TI NexFET smart power stages such as CSD95490 as in the official EVM; if a single rail must exceed about 300 A, step up to the 12-phase TPS536C7 instead of paralleling controllers. Parameters verified against TI documentation. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.
TPS53681 is a Multiphase controller from Texas Instruments, orderable in the WQFN-40 package. The ordering code fixes the exact configuration you receive — package, grade and packing — so procurement starts with matching this code character-for-character against your BOM, not just the base series name.
When you request a quote, include the full ordering code, the target packing format (reel, tube, tray or cut tape), your quantity and any date-code or lot requirements. We reconfirm manufacturer, suffix, package, date code and traceability against the actual offered lot before any commercial quote is issued, and every RFQ gets a reply within 24 hours.
Exact MPN, manufacturer and suffix
Supplier type, quantity and freshness
Lot, labels, photos and documents
Price, lead time, payment and shipping
Browse existing catalog records — same series first, then the same category and manufacturer. These are not confirmed replacements; compatibility requires engineering review.
Every suffix in a manufacturer ordering code identifies one exact orderable device — package, temperature grade, packing format or a revision. TPS53681 names the WQFN-40 configuration; a code that differs by even one suffix character may be a different device. Always quote the complete code exactly as it appears on your BOM.
The package (WQFN-40) is the physical form of the device itself. Packing describes how the devices are delivered — reel, tube, tray or cut tape. The same ordering code can ship in different packing formats depending on the lot, so confirm the required packing format when you submit your RFQ.
Traceability evidence — lot and date-code information, labels and photos — is confirmed per lot at quotation time, because it depends on the actual lot offered. Tell us which documents your receiving inspection requires when you submit the RFQ, and we will confirm what can be provided for the offered lot.
Add TPS53681 to your RFQ with the complete ordering code, the manufacturer (Texas Instruments), your quantity, the target packing format and any date-code requirements. We reply to every RFQ within 24 hours.