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

2 Applications
• DDR5 On-DIMM Power Supply for Server

3 Description
The TPS53830A is D-CAP+™ mode integrated stepdown
converter for DDR5 on-DIMM power supply,
which provides 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 2 outputs to supply
up to 12 A (or 6A + 6 A) current with D-CAP+™
mode control. 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, and output
current. overvoltage, undervoltage, overcurrent limit,
and over-temperature protections are provided as
well.
The TPS53830A is packaged in a thermally-enhanced
35-pin QFN and operates from -40°C to +105°C.