Texas Instruments 12V Input, 3.3V 1.5A and 1.2V and 2.5A Dual Sync Buck Converter Evaluation Module TPS54291EVM-431 TPS54291EVM-431 Scheda Tecnica
Codici prodotto
TPS54291EVM-431
User's Guide
SLVU356 – January 2010
Using the TPS54291EVM-431 A 12V Input, 3.3V 1.5A and
1.2V 2.5A Synchronous Buck Converter
Contents
1
Introduction
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1.1
Description
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1.2
Applications
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1.3
Features
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2
TPS54291EVM-431 Electrical Performance Specifications
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3
Schematic
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3.1
Enable Jumpers (JP1 and JP2)
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3.2
Error Amplifier Outputs
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3.3
Test Point Descriptions
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4
Test Set UP
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4.1
Equipment
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4.2
Equipment Setup
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4.3
Start Up / Shut Down Procedure
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4.4
Output Ripple Voltage Measurement Procedure
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4.5
Control Loop Gain and Phase Measurement Procedure
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4.6
Equipment Shutdown
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5
TPS54291EVM-431 Typical Performance Data and Characteristic Curves
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5.1
Efficiency
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5.2
Line and Load Regulation
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5.3
Switch Node and Output Ripple Voltage
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6
EVM Assembly Drawings and Layout
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7
List of Materials
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List of Figures
1
TPS54291EVM-431 Schematic (For Reference Only, See Table 4: Bill of Materials for Specific Values)
.....
2
TPS54291EVM-431 Recommended Test Set-Up
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3
Output Ripple Measurement – Tip and Barrel using TP3 and TP4 or TP18 and TP19
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4
Control Loop Measurement Setup
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5
TPS54291EVM-431 Efficiency vs Load Current
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6
TPS54291EVM-431 Output Voltage vs Load Current
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7
TPS54291EVM-431 Output Voltage Ripple
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8
TPS54291EVM-431 Component Placement (Viewed from Top)
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9
TPS54291EVM-431 Silkscreen (Viewed from Top)
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10
TPS54291EVM-431 Top Copper (Viewed from Top)
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11
TPS54291EVM-431 Bottom Copper (X-Ray View from Top)
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12
TPS54291EVM-431 Internal 1 (X-Ray View from Top)
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13
TPS54291EVM-431 Internal 2 (X-Ray View from Top)
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List of Tables
1
TPS54291EVM-431 Electrical and Performance Specifications
......................................................
1
SLVU356 – January 2010
Using the TPS54291EVM-431 A 12V Input, 3.3V 1.5A and 1.2V 2.5A
Synchronous Buck Converter
Copyright © 2010, Texas Instruments Incorporated