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TPS53515 1.5-V to 18-V (4.5-V to 25-V Bias) Input, 12-A Single Synchronous Step-Down SWIFT™ Converter
SLUSBN5B
August 2013 – July 2015
TPS53515
PRODUCTION DATA.
CONTENTS
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TPS53515 1.5-V to 18-V (4.5-V to 25-V Bias) Input, 12-A Single Synchronous Step-Down SWIFT™ Converter
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
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
5-V LDO and VREG Start-Up
7.3.2
Enable, Soft Start, and Mode Selection
7.3.3
Frequency Selection
7.3.4
D-CAP3 Control and Mode Selection
7.3.4.1
D-CAP3 Mode
7.3.4.2
Sample and Hold Circuitry
7.3.4.3
Adaptive Zero-Crossing
7.3.5
Power-Good
7.3.6
Current Sense and Overcurrent Protection
7.3.7
Overvoltage and Undervoltage Protection
7.3.8
Out-of-Bounds Operation
7.3.9
UVLO Protection
7.3.10
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Auto-Skip Eco-mode Light Load Operation
7.4.2
Forced Continuous-Conduction Mode
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
Choose the Switching Frequency
8.2.2.2
Choose the Operation Mode
8.2.2.3
Choose the Inductor
8.2.2.4
Choose the Output Capacitor
8.2.2.5
Determine the Value of R1 and R2
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
10.3
Thermal Performance
11
Device and Documentation Support
11.1
Documentation Support
11.1.1
Related Documentation
11.2
Community Resources
11.3
Trademarks
11.4
Electrostatic Discharge Caution
11.5
Glossary
12
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
RVE|28
MPQF709
Thermal pad, mechanical data (Package|Pins)
RVE|28
QFND366A
Orderable Information
slusbn5b_oa
slusbn5b_pm
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