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TPS6514x Triple Output LCD Supply With Linear Regulator and Power Good
SLVS497F
SEPTEMBER 2003 – June 2016
TPS65140
,
TPS65141
,
TPS65145
PRODUCTION DATA.
CONTENTS
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TPS6514x Triple Output LCD Supply With Linear Regulator and Power Good
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Dissipation Ratings
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Main Boost Converter
7.3.2
Power Good Output
7.3.3
Enable and Power-On Sequencing (EN, ENR)
7.3.4
Positive Charge Pump
7.3.5
Negative Charge Pump
7.3.6
Linear Regulator Controller
7.3.7
Soft Start
7.3.8
Fault Protection
7.3.9
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Enabling and Disabling the Device
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Boost Converter Design Procedure
8.2.2.1.1
Inductor Selection
8.2.2.1.2
Output Capacitor Selection
8.2.2.1.3
Input Capacitor Selection
8.2.2.1.4
Rectifier Diode Selection
8.2.2.1.5
Converter Loop Design and Stability
8.2.2.1.6
Design Procedure Quick Steps
8.2.2.1.7
Setting the Output Voltage and Selecting the Feedforward Capacitor
8.2.2.1.8
Compensation
8.2.2.1.9
Negative Charge Pump
8.2.2.1.10
Positive Charge Pump
8.2.2.1.11
Linear Regulator Controller
8.2.3
Application Curves
8.3
System Examples
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
10.3
Thermal Considerations
11
Device and Documentation Support
11.1
Device Support
11.1.1
Third-Party Products Disclaimer
11.2
Documentation Support
11.2.1
Related Documentation
11.3
Related Links
11.4
Receiving Notification of Documentation Updates
11.5
Community Resources
11.6
Trademarks
11.7
Electrostatic Discharge Caution
11.8
Glossary
12
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
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