TIDA-00507

High Power Density 9 to 15V In Intel Atom C2000 SoC VCCP & VNN Rail for Microservers Ref Design

TIDA-00507

Design files

Overview

The TI TPS53625 VR12 reference design (TIDA-00507), supporting Intel® Atom™ C2000, uses TI's driverless PWM architecture with TI power stages for high power density, high efficiency, and low component count while meeting Intel voltage tolerance requirements with low ripple and high output current monitoring accuracy.

Features
  • >81% Efficiency at 12VIN, 0.9Vout, 600KHz at 21A output current (VCCP)
  • Load transient performance well within the +/-64mV DC+AC guideline
  • Only 10x47uF ceramic output caps and 1x470uF bulk output capacitor for VCCP rail
  • Only 4x47uF output ceramic capacitors for VNN rail
  • Meets all Intel® Atom™ C2000 VCCP and VNN rail specifications, including Fast and Slow Dynamic VID transition specs
  • Driverless PWM architecture with external TI power stages for high effiency and power density
Output voltage options TIDA-00507.1 TIDA-00507.2
Vin (Min) (V) 9 9
Vin (Max) (V) 15 15
Vout (Nom) (V) .9 .9
Iout (Max) (A) 2.3 21
Output Power (W) 2.07 18.9
Isolated/Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC
Topology Buck- Multiphase Buck- Multiphase

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU934.PDF (6831 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDU935.PDF (5006 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDREE3.PDF (68 K)

Detailed schematic diagram for design layout and components

TIDREE4.PDF (367 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDREE5.PDF (367 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDCA63.ZIP (2065 K)

Design file that contains information on physical board layer of design PCB

Products

Includes TI products in the design and potential alternatives.

Buck controllers (external switch)

TPS536252-Phase, D-CAP+™ buck controller for VR12.0 microserver

Data sheet: PDF
Linear & low-dropout (LDO) regulators

TPS7A801-A, high-PSRR, ultra-low-dropout voltage regulator with low-IQ & enable

Data sheet: PDF | HTML
Power stages

CSD97374Q4M30V 25A SON 3.5 x 4.5mm synchronous buck NexFET™ power stage

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report TIDA-00507 Test Results (TPS53625 Intel Atom C2000 PVNN) Apr. 15, 2015
Test report TIDA-00507 Test Results (TPS53625 Intel Atom C2000 PVCCP) Apr. 15, 2015

Support & training

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