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SLVP089 manual ConSLVverterP089SynchronousEvaluationModuleBuck, User’s Guide
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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
Page 1
Image 1
Con
SLV
verter
P089Synchronous
EvaluationModule
Buck
User’s Guide
1998
Mixed-Signal
Linear Products
Page 2
Page 1
Image 1
Page 2
Contents
Mixed-Signal Linear Products
ConSLVverterP089SynchronousEvaluationModuleBuck
User’s Guide
1998
07/98
Printed in U.S.A
SLVU001A
Literature Number SLVU001A July
SLVP089 Synchronous Buck Converter Evaluation Module User’s Guide
IMPORTANT NOTICE
Read This First
How to Use This Manual
About This Manual
Related Documentation From Texas Instruments
FCC Warning
If You Need Assistance
Trademarks
1.1 Introduction 1.2 Schematic 1.3 Input/Output Connections
Contents
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
Tables
Figures
Chapter
Hardware
Page
Topic
Figure 1-1. Typical Synchronous Buck Converter
1.1 Introduction
Figure 1-2. Schematic Diagram
1.2 Schematic
Hardware
Schematic
Figure 1-3. Input/Output Connections
1.3 Input/Output Connections
Input/Output Connections
Figure 1-4. Board Layout
1.4 Board Layout
Board Layout
Hardware1-5
Table 1-1. Bill of Materials
1.5 Bill of Materials
Bill of Materials
Table 1-2. Line/Load Regulation, 3.3-V Total Variation
1.6 Test Results
Table 1-3. Load Regulation and Ripple, 3.3-V 9-V Input
Figure 1-5. Efficiency Vs Load
Figure 1-7. Power Switch Turn-Off and Delay to Q2 On
Figure 1-6. Power Switch Turn-On and Delay from Q2 Off
Test Results
V CC = 12
Test Results
Figure 1-8. Inductor and Output Ripple
Hardware1-9
2-AC
Page
Chapter
Design Procedure
Page
Topic
2.1 Introduction
Table 2-1. Operating Specifications
2.2 Operating Specifications
Operating Specifications
Design Procedure
2.3.3 Power Switch
2.3 Design Procedures
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
2.3.7 Loop Compensation
2.3.6 Controller Functions
1 mA
0.001
+ DD V O
Figure 2-1. Power Stage Bode Plot
Figure 2-2. Compensation Network
Figure 2-4. Output Response
Figure 2-3. Bode Plot
