Set Top Box Power Solution

(ACTIVE) PMP6638

Description & Features

Technical Documents

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Description

This reference design is an example of power-trees inside a set-top-box. It performs DC-DC conversions, from 12V supply, for 1.0V/1.2V/1.8V/2.5V/3.3V/5V rails.

Features
  • Provides 6 power rails: 1.0V/2.7A, 1.0V/0.6A, 1.2V/0.7A, 1.8V/0.4A, 2.5V/1.6A, 3.3V/4A, and 5V/0.5A
  • Best for a Set Top Box with 12V AC-adaptor
  • Demonstrates delay circuits to achieve power on timing/sequencing
  • Peak efficiency over 95%
  • Very compact PCB design
  • This design is tested and ready to be used in any Set Top Box design.

 


View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  



Schematic/Block Diagram

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Test Data

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Design Files

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Bill of Materials (BOM)

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Parametrics
 PMP6638.1
(Output Voltage 1)
Vin (Min) (V)10
Vin (Max) (V)14
Vout (Nom) (V)3.3
Iout (Max) (A)3.4
Output Power (W)11.22
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck- Synchronous

TI Devices (3)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS54227  4.5V to 18V Input, 2A Synchronous Step-Down Converter  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS54327  4.5V to 18V Input, 3-A Synchronous Step-Down Converter  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS54425  4.5V to 18V Input, 4A Synchronous Step-Down Converter   Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS54227 Download -
Download Download
Download
TPS54327 Download Download
Download
TPS54425 Download -

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Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 3339 16 Sep 2013 6
Design files (3)
Title Abstract Type Size (KB) Date Views
ZIP 350 18 Sep 2013 3
PDF 121 16 Sep 2013 3
PDF 46 16 Sep 2013 5

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