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Texas Instruments TPS53830A Integrated Step-Down Digital Converter

Texas Instruments TPS53830A Integrated Step-Down Digital Converter offers a D-CAP+™ mode for a DDR5 on-DIMM power supply. The device furnishes VDD, VDDQ, and VPP voltages to the DRAM chips on the DIMM module with configurable current capability. The high-current rail can be configured to 2-phase or two outputs to deliver up to 12A (or 6A + 6A) current with the D-CAP+ mode control. The converter also utilizes internal compensation for ease of use and a reduction of external components. The TI TPS53830A integrated step-down digital converter supplies a complete set of telemetry, including input voltage, output voltage, and output current. Overvoltage, undervoltage, overcurrent limit, and over-temperature protections are also provided.

The TPS53830A is available in a thermally-enhanced 35-pin QFN package and operates from -40°C to +105°C.

Features

  • Single silicon design to support DDR5 applications
  • 3 Outputs to supply VDD (1.1V), VDDQ (1.1V) and VPP (1.8V), with a optional 4th output (VDD2)
  • For 3 outputs, 12A for VDD(SWA dual phase), 6A for VDDQ(SWC) and 5A for VPP(SWD) with 3 outputs
  • For 4 outputs, 6A for VDD1(SWA), 6A for VDD2(SWB), 6A for VDDQ(SWC), and 5A for VPP(SWD)
  • Differential remote sense of VDD, VDDQ, and VPP
  • D-CAP+™ control for fast transient response
  • Wide input voltage of 4.5V to 15V
  • Programmable internal loop compensation
  • Per-phase cycle-by-cycle current limit
  • Programmable frequency of 500kHz to 1.375MHz
  • Support I2C and I3C Bus interface for telemetry of voltage, current, power, temperature, and fault conditions
  • Overcurrent, overvoltage, and over-temperature protections
  • Persistent register (black box) feature
  • Low quiescent current
  • 5mm x 5mm, 35-Pin, QFN PowerPad™ package

Simplified Application

Application Circuit Diagram - Texas Instruments TPS53830A Integrated Step-Down Digital Converter
Yayınlandı: 2022-12-23 | Güncellenmiş: 2025-04-16