SLVSAY9F December   2012  – March 2016 TPS65320-Q1

PRODUCTION DATA.  

1. 1 Features
2. 2 Applications
3. 3 Description
4. 4 Revision History
5. 5 Pin Configuration and Functions
6. 6 Specifications
   1. 6.1 Absolute Maximum Ratings
   2. 6.2 ESD Ratings
   3. 6.3 Recommended Operating Conditions
   4. 6.4 Thermal Information
   5. 6.5 Electrical Characteristics
   6. 6.6 Timing Requirements
   7. 6.7 Switching Characteristics
   8. 6.8 Typical Characteristics
7. 7 Detailed Description
   1. 7.1 Overview
   2. 7.2 Functional Block Diagram
   3. 7.3 Feature Description
      1. 7.3.1 Buck Regulator
         1. 7.3.1.1  Fixed-Frequency PWM Control
         2. 7.3.1.2  Slope Compensation Output
         3. 7.3.1.3  Pulse-Skip Eco-mode™ Control Scheme
         4. 7.3.1.4  Dropout Operation and Bootstrap Voltage (BOOT)
         5. 7.3.1.5  Error Amplifier
         6. 7.3.1.6  Voltage Reference
         7. 7.3.1.7  Adjusting the Output Voltage
         8. 7.3.1.8  Soft-Start and Tracking Pin (SS/TR)
         9. 7.3.1.9  Overload Recovery Circuit
         10. 7.3.1.10 Constant Switching Frequency and Timing Resistor (RT/CLK Pin)
         11. 7.3.1.11 Overcurrent Protection and Frequency Shift
         12. 7.3.1.12 Selecting the Switching Frequency
         13. 7.3.1.13 How to Interface to RT/CLK Pin
         14. 7.3.1.14 Overvoltage Transient Protection
         15. 7.3.1.15 Thermal Shutdown
         16. 7.3.1.16 Small-Signal Model for Loop Response
         17. 7.3.1.17 Simple Small-Signal Model for Peak-Current Mode Control
         18. 7.3.1.18 Small-Signal Model for Frequency Compensation
      2. 7.3.2 LDO Regulator
         1. 7.3.2.1 Charge-Pump Operation
         2. 7.3.2.2 Low-Voltage Tracking
         3. 7.3.2.3 Power-Good Output, nRST
      3. 7.3.3 Enable and Undervoltage Lockout
   4. 7.4 Device Functional Modes
      1. 7.4.1 Modes of Operation
8. 8 Application and Implementation
   1. 8.1 Application Information
   2. 8.2 Typical Applications
      1. 8.2.1 2.2-MHz Switching Frequency, 9-V to 16-V Input, 5-V Output Buck Regulator, 3.3-V Output LDO Regulator
         1. 8.2.1.1 Design Requirements
         2. 8.2.1.2 Detailed Design Procedure
            1. 8.2.1.2.1  Switching Frequency Selection for the Buck Regulator
            2. 8.2.1.2.2  Output Inductor Selection for the Buck Regulator
            3. 8.2.1.2.3  Output Capacitor Selection for the Buck Regulator
            4. 8.2.1.2.4  Catch Diode Selection for the Buck Regulator
            5. 8.2.1.2.5  Input Capacitor Selection for the Buck Regulator
            6. 8.2.1.2.6  Soft-Start Capacitor Selection for the Buck Regulator
            7. 8.2.1.2.7  Bootstrap Capacitor Selection for the Buck Regulator
            8. 8.2.1.2.8  Output Voltage and Feedback Resistor Selection for the Buck Regulator
            9. 8.2.1.2.9  Frequency Compensation Selection for the Buck Regulator
            10. 8.2.1.2.10 LDO Regulator
            11. 8.2.1.2.11 Power Dissipation
                1. 8.2.1.2.11.1 Power Dissipation Losses of the Buck Regulator
            12. 8.2.1.2.12 Power Dissipation Losses of the LDO Regulator
            13. 8.2.1.2.13 Total Device Power Dissipation Losses and Junction Temperature
         3. 8.2.1.3 Application Curves
      2. 8.2.2 Design Example With 500-kHz Switching Frequency
         1. 8.2.2.1 Design Requirements
         2. 8.2.2.2 Detailed Design Procedure
            1. 8.2.2.2.1 Selecting the Switching Frequency
            2. 8.2.2.2.2 Output Inductor Selection
            3. 8.2.2.2.3 Output Capacitor
            4. 8.2.2.2.4 Compensation
         3. 8.2.2.3 Application Curve
9. 9 Power Supply Recommendations
10. 10Layout
    1. 10.1 Layout Guidelines
       1. 10.1.1 Inductor (L)
       2. 10.1.2 Input Filter Capacitors (CI)
       3. 10.1.3 Resistive Feedback Networks
       4. 10.1.4 Traces and Ground Plane
    2. 10.2 Layout Example
11. 11Device and Documentation Support
    1. 11.1 Device Support
       1. 11.1.1 Third-Party Products Disclaimer
    2. 11.2 Documentation Support
       1. 11.2.1 Related Documentation
    3. 11.3 Community Resource
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
12. 12Mechanical, Packaging, and Orderable Information