Datasheet
User's Guide
SLVU431–January 2011
Using the TPS53219EVM-690 Wide-Input Voltage,
Eco-mode™, Single, Synchronous, Step-Down Controller
The TPS53219EVM-690 evaluation module allows users to evaluate the Texas Instruments TPS53219, a
small-sized, single, buck controller with adaptive on-time D-CAP™ mode control. Included in this
document are operating and testing descriptions as well as the EVM schematic, bill of materials, and
board layout.
Contents
1 Introduction .................................................................................................................. 3
2 Description ................................................................................................................... 3
2.1 Typical Applications ................................................................................................ 3
2.2 Features ............................................................................................................. 3
3 Electrical Performance Specifications .................................................................................... 3
4 Schematic .................................................................................................................... 4
5 Test Setup ................................................................................................................... 5
5.1 Test Equipment ..................................................................................................... 5
5.2 Recommended Test Setup ....................................................................................... 6
6 Configurations ............................................................................................................... 6
6.1 Switching Frequency Selection .................................................................................. 6
6.2 Soft-Start Selection ................................................................................................ 7
6.3 Mode Selection ..................................................................................................... 7
6.4 Enable Selection ................................................................................................... 7
7 Test Procedure .............................................................................................................. 7
7.1 Line/Load Regulation and Efficiency Measurement Procedure .............................................. 7
7.2 Control Loop Gain and Phase Measurement Procedure ..................................................... 8
7.3 List of Test Points .................................................................................................. 8
7.4 Equipment Shutdown .............................................................................................. 8
8 Performance Data and Typical Characteristic Curves ................................................................. 9
8.1 Efficiency ............................................................................................................ 9
8.2 Load Regulation .................................................................................................... 9
8.3 Output Transient .................................................................................................. 10
8.4 Output Ripple ..................................................................................................... 11
8.5 Switching Node ................................................................................................... 11
8.6 Enable Turnon/Turnoff ........................................................................................... 12
8.7 Output 1.1-V Prebias Turnon ................................................................................... 13
8.8 Bode Plot .......................................................................................................... 13
8.9 Thermal Image .................................................................................................... 14
9 EVM Assembly Drawing and PCB Layout ............................................................................. 15
10 Bill of Materials ............................................................................................................. 19
List of Figures
1 TPS53219EVM-690 Schematic ........................................................................................... 4
2 Tip and Barrel Measurement for Vout Ripple ........................................................................... 5
3 TPS53219EVM-690 Recommended Test Set Up ...................................................................... 6
4 Efficiency..................................................................................................................... 9
Eco-mode, D-CAP are trademarks of Texas Instruments.
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SLVU431–January 2011 Using the TPS53219EVM-690 Wide-Input Voltage, Eco-mode™, Single,
Synchronous, Step-Down Controller
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