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TPS54060 0.5-A, 60-V Step Down DC-DC Converter with Eco-Mode™
SLVS919C
January 2009 – September 2015
TPS54060
PRODUCTION DATA.
CONTENTS
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TPS54060 0.5-A, 60-V Step Down DC-DC Converter with Eco-Mode™
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
Timing Resistor and External Clock (RT/CLK Pin) Timing Requirements
6.7
Timing Resistor and External Clock (RT/CLK PIN) Switching Characteristics
6.8
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
Slope Compensation Output Current
7.3.3
Pulse Skip Eco-mode
7.3.4
Low Dropout Operation and Bootstrap Voltage (BOOT)
7.3.5
Error Amplifier
7.3.6
Voltage Reference
7.3.7
Slow Start/Tracking Pin (SS/TR)
7.3.8
Overload Recovery Circuit
7.3.9
Constant Switching Frequency and Timing Resistor (RT/CLK Pin)
7.3.10
Overcurrent Protection and Frequency Shift
7.3.11
Power Good (PWRGD Pin)
7.3.12
Overvoltage Transient Protection
7.3.13
Thermal Shutdown
7.3.14
Small Signal Model for Loop Response
7.3.15
Simple Small Signal Model for Peak Current Mode Control
7.3.16
Small Signal Model for Frequency Compensation
7.4
Device Functional Modes
8
Application and Implementation
8.1
Application Information
8.1.1
Adjusting the Output Voltage
8.1.2
Enable and Adjusting Undervoltage Lockout
8.1.3
Sequencing
8.1.4
Selecting the Switching Frequency
8.1.5
How to Interface to RT/CLK Pin
8.2
Typical Applications
8.2.1
Buck Converter for 3.3-V Output
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Selecting the Switching Frequency
8.2.1.2.2
Output Inductor Selection (LO)
8.2.1.2.3
Output Capacitor
8.2.1.2.4
Catch Diode
8.2.1.2.5
Input Capacitor
8.2.1.2.6
Slow Start Capacitor
8.2.1.2.7
Bootstrap Capacitor Selection
8.2.1.2.8
Undervoltage Lockout (UVLO) Set Point
8.2.1.2.9
Output Voltage and Feedback Resistors Selection
8.2.1.2.10
Compensation
8.2.1.2.11
Discontinuous Mode and Eco Mode Boundary
8.2.1.2.12
Power Dissipation Estimate
8.2.1.3
Application Curves
8.2.2
Inverting Power Supply
8.2.3
Split Rail Power Supply
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.1.1
Estimated Circuit Area
10.2
Layout Example
11
Device and Documentation Support
11.1
Device Support
11.1.1
Third-Party Products Disclaimer
11.1.2
Development Support
11.2
Documentation Support
11.2.1
Related Documentation
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)
DGQ|10
MPDS043F
DRC|10
MPDS117L
Thermal pad, mechanical data (Package|Pins)
DGQ|10
PPTD325B
DRC|10
QFND013N
Orderable Information
slvs919c_oa
slvs919c_pm
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