Switched capacitor integrated buck reference design
PMP22510
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Key Document

Description

This switched capacitor integrated buck (SCIB) converter is a highly-optimized design for use in a high-power, high-density single output power converter, operating from a wide-range 40-V to 60-V input rail to produce a 8.0-V, 5.0-V, 3.3-V or 1.8-V rail up to 40A of load current each phase. This reference design design integrates the CSD95490Q5MC and CSD95379Q3M NexFET power MOSFET stages, the UCC27212 driver ICs, capacitors and inductors in a 23mm x 23mm outline PCB layout, and is compatible with multiphase buck controllers TPS53667 to complete the power stage switching function.

Features
  • Wide input voltage range from 40 V to 60 V
  • Regulated 8.0-V, 5.0-V, 3.3-V or 1.8-V output
  • 30-A continous operating current capability
  • 40-A peak operating current capability
  • Over 95% system efficiency at 5.0-V, 20-A output
  • High-density 23-mm x 23-mm footprint

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Schematic/Block Diagram

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Design Guide

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Design Files

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Parametrics
 PMP22510.1
(Output Voltage 1)
PMP22510.2
(Output Voltage 2)
PMP22510.3
(Output Voltage 3)
PMP22510.4
(Output Voltage 4)
Vin (Min) (V)40404040
Vin (Max) (V)60606060
Vout (Nom) (V)1.83.358
Iout (Max) (A)40404020
Output Power (W)72132200160
Isolated/Non-IsolatedNon-IsolatedNon-IsolatedNon-IsolatedNon-Isolated
Input TypeDCDCDCDC
TopologyOtherOtherOtherOther

TI Devices (8)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD95379Q3M  Synchronous Buck NexFET Power Stage, CSD95379Q3M  MOSFETs  Sample & Buy Not Available
CSD95490Q5MC  75A Synchronous Buck NexFET™ Smart Power Stage with DualCool Package  MOSFETs  Not Available Not Available
LM5114  7.6-A/1.3-A single channel gate driver with 4-V UVLO and split outputs  Gate drivers  Sample & Buy View Design Kits & Evaluation Modules
LMV7275-Q1  Automotive, low power comparator with rail-to-rail input  Amplifiers  Sample & Buy View Design Kits & Evaluation Modules
TPS53667  6-Phase, D-CAP+ step-down driverless buck controller with NVM and PMBus interface for ASIC  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
TPS62125  3V-17V, 300mA Buck Converter With Adjustable Enable Threshold And Hysteresis  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
TPS701  500-mA, dual-channel low-dropout voltage regulator with power good & enable  Power management  Sample & Buy Not Available
UCC27212  4-A, 120-V half bridge gate driver with 5-V UVLO and negative voltage handling  Gate drivers  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD95379Q3M VSON-CLIP (DNS)| 10 Download -
CSD95490Q5MC VSON-CLIP (DMC)| 12 Download -
LM5114 Download Download
Download Download
LMV7275-Q1 Download Download
TPS53667 Download Download
TPS62125 Download Download
TPS701 Download Download
UCC27212 Download Download

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Technical documentation

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Datasheet (4)
Title Type Size (KB) Date
PDF 805 09 Jan 2018
PDF 855 05 Jul 2017
PDF 3319 10 Feb 2017
PDF 1316 30 Dec 2016
User guides (2)
Title Type Size (KB) Date
PDF 2067 12 Jun 2020
PDF 2360 02 Aug 2016
Design files (6)
Title Type Size (KB) Date
ZIP 724 12 Jun 2020
ZIP 4242 12 Jun 2020
PDF 2020 12 Jun 2020
PDF 7335 12 Jun 2020
PDF 131 12 Jun 2020
PDF 743 12 Jun 2020
Related Tools & Software

Software development (1)

Name Part Number Software Type
Fusion Digital Power Studio  FUSION-DIGITAL-POWER-STUDIO  Application software & frameworks 


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