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TPS62111RSA PDF预览

TPS62111RSA

更新时间: 2024-11-04 07:04:47
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
9页 245K
描述
High-Vin, High-Efficiency Power Solution Using DC/DC Converter With DVFS

TPS62111RSA 数据手册

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Application Report  
SLVA339AJune 2009Revised May 2010  
High-Vin, High-Efficiency Power Solution Using DC/DC  
Converter With DVFS  
Ambreesh Tripathi .......................................................................... PMP - DC/DC Low-Power Converters  
ABSTRACT  
This reference design is intended for users designing with the TMS320C6742, TMS320C6746,  
TMS320C6748, or OMAP-L138 processor. Using sequenced power supplies, this reference design  
describes a system having a 12-V input voltage and a high-efficiency dc/dc converter with integrated FETs  
and dynamic voltage and frequency scaling (DVFS) for a small, simple design.  
Sequenced power supply architectures are becoming commonplace in high-performance microprocessor  
and digital signal processor (DSP) systems. To save power and increase processing speeds, processor  
cores have smaller geometry cells and require lower supply voltages than the system bus voltages. Power  
management in these systems requires special attention. This application report addresses these topics  
and suggests solutions for output voltage sequencing.  
Contents  
1
2
3
4
Introduction .................................................................................................................. 2  
Power Requirements ....................................................................................................... 2  
Features ...................................................................................................................... 3  
Bill of Materials .............................................................................................................. 6  
List of Figures  
1
2
3
4
5
6
7
PMP4976 Reference Design Schematic.................................................................................  
Optional Circuit for DVDD_A, DVDD_B, and DVDD_C................................................................  
Sequencing in Start-up Waveform........................................................................................  
Efficiency vs Output Current...............................................................................................  
Efficiency vs Output Current...............................................................................................  
Efficiency vs Output Current...............................................................................................  
Efficiency vs Output Current...............................................................................................  
4
5
7
7
7
7
7
List of Tables  
1
2
General Requirements .....................................................................................................  
PMP4976 Bill of Materials .................................................................................................  
2
6
1
SLVA339AJune 2009Revised May 2010  
High-Vin, High-Efficiency Power Solution Using DC/DC Converters With DVFS  
Copyright © 2009–2010, Texas Instruments Incorporated  

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