Integrated step-down converter with SVID for Intel CPU power


Product details


Vin (Min) (V) 4.5 Vin (Max) (V) 15 Vout (Min) (V) 0.5 Vout (Max) (V) 2.5 Iout (Max) (A) 12 Iq (Typ) (uA) 11000 Switching frequency (Min) (kHz) 720 Switching frequency (Max) (kHz) 2000 Features Differential Remote Sense, Enable, I2C/PMBus, Over Current Protection, Power Good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO Adjustable, VID Interface Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 2 open-in-new Find other Buck converters (integrated switch)


  • Single chip to support Intel VR13.HC SVID POL applications
  • Two outputs to support VCCANA (5.5 A) and P1V8 (4 A)
  • D-CAP+™ Control for Fast Transient Response
  • Wide Input Voltage (4.5 V to 15 V)
  • Differential Remote Sense
  • Programmable Internal Loop Compensation
  • Per-Phase Cycle-by-Cycle Current Limit
  • Programmable Frequency from 800 kHz to 2 MHz
  • I2C System Interface for Telemetry of Voltage, Current, Output Power, Temperature, and Fault Conditions
  • Over-Current, Over-Voltage, Over-Temperature protections
  • Low Quiescent Current
  • 5 mm × 5 mm, 35-Pin QFN, PowerPAD Package
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The TPS53820 device is D-CAP+ mode integrated step-down converter for low current SVID rails of Intel CPU power supply. It provides up to two outputs to power the low current SVID rails such as VCCANA (5.5 A) and P1V8 (4 A). The device employs D-CAP+ mode control to provide fast load transient performance. Internal compensation allows ease of use and reduces external components.

The device also provides telemetry, including input voltage, output voltage, output current and temperature reporting. Over voltage, over current and over temperature protections are provided as well.

The TPS53820 device is packaged in a thermally enhanced 35-pin QFN and operates between –40°C and 125°C.

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Type Title Date
* Data sheet Integrated Step-Down Converter with SVID Interface for Intel® CPU Power Supply datasheet Feb. 17, 2020
Technical article Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019

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