SNVA951 November   2020 LM61460-Q1 , LM63615-Q1 , LM63625-Q1 , LM63635-Q1 , LMR33620-Q1 , LMR33630-Q1

1.   Trademarks
2. 1 Introduction
3. 2 The Goal of Thermal Management
4. 3 Junction Temperature Calculation
   1. 3.1 Regulator Junction Temperature (TJ)
   2. 3.2 Ambient Temperature (TA)
   3. 3.3 Power Dissipation (PD)
   4. 3.4 Thermal Resistance (θJA)
      1. 3.4.1 Thermal Metrics
5. 4 Package Type
6. 5 PCB Copper Heat Sink
7. 6 PCB Layout Tips
8. 7 Estimating and Measuring θJA
   1. 7.1 Simple Guideline
   2. 7.2 Data Sheet Curves
   3. 7.3 Simplified Heat Flow Spreadsheet
   4. 7.4 Online Database
   5. 7.5 Thermal Simulators
9. 8 Measuring Thermal Performance
   1. 8.1 Thermal Camera
   2. 8.2 Thermocouple
   3. 8.3 Internal Diode
10. 9 Thermal Design Example
11. 10Conclusion
12. 11References