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SLVP089 manual
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SLVP089
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Specs
Schematic
Design Procedure
6. Power Switch Turn-On and Delay from Q2 Off
Mixed-Signal Linear Products
How to
Power Switch
Synchronous Switch and Rectifier
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2-10
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Contents
ConSLVverterP089SynchronousEvaluationModuleBuck
Mixed-Signal Linear Products
User’s Guide
1998
07/98
Printed in U.S.A
SLVU001A
SLVP089 Synchronous Buck Converter Evaluation Module User’s Guide
Literature Number SLVU001A July
IMPORTANT NOTICE
How to Use This Manual
Read This First
About This Manual
Related Documentation From Texas Instruments
FCC Warning
If You Need Assistance
Trademarks
Contents
1.1 Introduction 1.2 Schematic 1.3 Input/Output Connections
2.1 Introduction 2.2 Operating Specifications 2.3 Design Procedures
2.3.1 Duty Cycle Estimate 2.3.2 Output Filter 2.3.3 Power Switch
Figures
Tables
Hardware
Chapter
Page
Topic
1.1 Introduction
Figure 1-1. Typical Synchronous Buck Converter
1.2 Schematic
Figure 1-2. Schematic Diagram
Hardware
Schematic
Figure 1-3. Input/Output Connections
1.3 Input/Output Connections
Input/Output Connections
1.4 Board Layout
Figure 1-4. Board Layout
Board Layout
Hardware1-5
Table 1-1. Bill of Materials
1.5 Bill of Materials
Bill of Materials
1.6 Test Results
Table 1-2. Line/Load Regulation, 3.3-V Total Variation
Table 1-3. Load Regulation and Ripple, 3.3-V 9-V Input
Figure 1-5. Efficiency Vs Load
Figure 1-6. Power Switch Turn-On and Delay from Q2 Off
Figure 1-7. Power Switch Turn-Off and Delay to Q2 On
Test Results
V CC = 12
Figure 1-8. Inductor and Output Ripple
Test Results
Hardware1-9
2-AC
Page
Design Procedure
Chapter
Page
Topic
2.1 Introduction
2.2 Operating Specifications
Table 2-1. Operating Specifications
Operating Specifications
Design Procedure
2.3 Design Procedures
2.3.3 Power Switch
2.3.1 Duty Cycle Estimate
2.3.2 Output Filter
2.3.5 Snubber Network
2.3.4 Synchronous Switch and Rectifier
+ 3 W
2.3.6 Controller Functions
2.3.7 Loop Compensation
1 mA
0.001
Figure 2-1. Power Stage Bode Plot
+ DD V O
Figure 2-2. Compensation Network
Figure 2-3. Bode Plot
Figure 2-4. Output Response