SLVSBB4G August   2012  – June 2018 TPS54360

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Schematic
      2.      Efficiency vs Load Current
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin 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 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  Fixed Frequency PWM Control
      2. 7.3.2  Slope Compensation Output Current
      3. 7.3.3  Pulse Skip Eco-mode
      4. 7.3.4  Low Dropout Operation and Bootstrap Voltage (BOOT)
      5. 7.3.5  Error Amplifier
      6. 7.3.6  Adjusting the Output Voltage
      7. 7.3.7  Enable and Adjusting Undervoltage Lockout
      8. 7.3.8  Internal Soft-Start
      9. 7.3.9  Constant Switching Frequency and Timing Resistor (RT/CLK) Terminal)
      10. 7.3.10 Accurate Current Limit Operation and Maximum Switching Frequency
      11. 7.3.11 Synchronization to RT/CLK Terminal
      12. 7.3.12 Overvoltage Protection
      13. 7.3.13 Thermal Shutdown
      14. 7.3.14 Small Signal Model for Loop Response
      15. 7.3.15 Simple Small Signal Model for Peak Current Mode Control
      16. 7.3.16 Small Signal Model for Frequency Compensation
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operation with VIN = < 4.5 V (Minimum VIN)
      2. 7.4.2 Operation with EN Control
      3. 7.4.3 Alternate Power Supply Topologies
        1. 7.4.3.1 Inverting Power
        2. 7.4.3.2 Split-Rail Power Supply
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1  Custom Design with WEBENCH® Tools
        2. 8.2.2.2  Selecting the Switching Frequency
        3. 8.2.2.3  Output Inductor Selection (LO)
        4. 8.2.2.4  Output Capacitor
        5. 8.2.2.5  Catch Diode
        6. 8.2.2.6  Input Capacitor
        7. 8.2.2.7  Bootstrap Capacitor Selection
        8. 8.2.2.8  Undervoltage Lockout Set Point
        9. 8.2.2.9  Output Voltage and Feedback Resistors Selection
        10. 8.2.2.10 Minimum VIN
        11. 8.2.2.11 Compensation
        12. 8.2.2.12 Discontinuous Conduction Mode and Eco-mode Boundary
        13. 8.2.2.13 Power Dissipation Estimate
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
      1. 10.2.1 Estimated Circuit Area
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Custom Design with WEBENCH® Tools
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.2.3 Application Curves

TPS54360 ac_G001_lvsbb4.gif
Figure 35. Load Transient
TPS54360 ac_G003_lvsbb4.gif
Figure 37. Start-up With VIN
TPS54360 ac_G005_lvsbb4.gif
Figure 39. Output Ripple CCM
TPS54360 ac_G007_lvsbb4.gif
Figure 41. Output Ripple PSM
TPS54360 ac_G009_lvsbb4.gif
Figure 43. Input Ripple DCM
TPS54360 eff_vs_load_lvsbb4.gif
Figure 45. Efficiency vs Load Current
TPS54360 eff_vs_3.3V_load_lvsbb4.gif
Figure 47. Efficiency vs Load Current
TPS54360 gain_phase_lvsbb4.gif
Figure 49. Overall Loop Frequency Response
TPS54360 reg_vs_Vi_lvsbb4.gif
Figure 51. Regulation vs Input Voltage
TPS54360 ac_G002_lvsbb4.gif
Figure 36. Line Transient (8 V to 40 V)
TPS54360 ac_G004_lvsbb4.gif
Figure 38. Start-up With EN
TPS54360 ac_G006_lvsbb4.gif
Figure 40. Output Ripple DCM
TPS54360 ac_G008_lvsbb4.gif
Figure 42. Input Ripple CCM
TPS54360 ac_G010_lvsbb4.gif
Figure 44. Low Dropout Operation
TPS54360 light_load_eff_vs_current_lvsbb4.gif
Figure 46. Light Load Efficiency
TPS54360 light_load_eff_vs_3.3Vcurrent_lvsbb4.gif
Figure 48. Light Load Efficiency
TPS54360 reg_vs_load_lvsbb4.gif
Figure 50. Regulation vs Load Current