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The TPS53831RWZR is a D-CAP+™ mode integrated buck converter for DDR5 on-DIMM power supplies. The converter has a configurable current range to provide VDD, VDDQ, and VPP voltages for DRAM chips on DIMM modules. The high current rail can be configured as 2-phase or 2 outputs to provide up to 12A (or 6A + 6A) and is controlled in D-CAP+™ mode. The converter also features internal compensation for ease of use and reduced external components.

The converter offers a full suite of telemetry functions including input voltage, output voltage and output current. Overvoltage, undervoltage, overcurrent limit, and thermal protection are also provided.

Features

Single device design to support DDR5 applications

3 outputs supporting VDD (1.1V), VDDQ (1.1V), and VPP (1.8V) with an optional 4th output (VDD2)

For 3 outputs, VDD (SWA duplex) is 12A, VDDQ (SWC) is 6A, VPP (SWD) is 5A with 3 outputs

For 4 outputs, VDD1(SWA) is 6A, VDD2(SWB) is 6A, VDDQ(SWC) is 6A, VPP(SWD) is 5A

Differential remote sensing: VDD, VDDQ and VPP

D-CAP+™ control for fast transient response

Wide input voltage: 4.5 V to 15 V

Programmable internal loop compensation

Cycle-by-cycle current limiting per phase

Programmable frequency: 500 kHz to 1.375 MHz

Supports I2C and I3C bus interfaces for voltage, current, power, temperature and fault condition telemetry

Over-current, over-voltage, and over-temperature protection

Persistent register (black box) function

Low quiescent current

5mm × 5mm, 35-pin, QFN PowerPad™ package

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

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• 6.Can the company issue an invoice?

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