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TPS54116-Q1 2.95-V to 6-V Input, 4-A Step-Down Converter and 1-A Source/Sink DDR Termination Regulator
SLVSCO3B
August 2016 – October 2016
TPS54116-Q1
PRODUCTION DATA.
CONTENTS
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TPS54116-Q1 2.95-V to 6-V Input, 4-A Step-Down Converter and 1-A Source/Sink DDR Termination Regulator
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
Fixed Frequency PWM Control
7.3.2
Bootstrap Voltage (BOOT) and Low Dropout Operation
7.3.3
Error Amplifier
7.3.4
Voltage Reference and Adjusting the Output Voltage
7.3.5
Enable and Adjusting Undervoltage Lockout
7.3.6
Soft Start and Tracking
7.3.7
Start-up into Pre-Biased Output
7.3.8
Power Good
7.3.9
Sequencing
7.3.10
Constant Switching Frequency and Timing Resistor (RT/SYNC)
7.3.11
Buck Overcurrent Protection
7.3.12
Overvoltage Transient Protection
7.3.13
VTT Sink and Source Regulator
7.3.14
VTTREF
7.3.15
Thermal Shutdown
7.4
Device Functional Modes
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
Switching Frequency
8.2.2.2
Output Inductor Selection
8.2.2.3
Output Capacitor
8.2.2.4
Input Capacitor
8.2.2.5
Soft Start Capacitor
8.2.2.6
Undervoltage Lock Out Set Point
8.2.2.7
Bootstrap Capacitor
8.2.2.8
Power Good Pullup
8.2.2.9
ILIM Resistor
8.2.2.10
Output Voltage and Feedback Resistors Selection
8.2.2.11
Compensation
8.2.2.12
LDOIN Capacitor
8.2.2.13
VTTREF Capacitor
8.2.2.14
VTT Capacitor
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Receiving Notification of Documentation Updates
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)
RTW|24
MPQF167C
Thermal pad, mechanical data (Package|Pins)
RTW|24
QFND062N
Orderable Information
slvsco3b_oa
slvsco3b_pm
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