SLVSDV6C November   2017  – November 2019 TPS62821 , TPS62822 , TPS62823

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application Schematic space space space space
      2.      Efficiency vs Output Current space
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Enable / Shutdown and Output Discharge
      2. 8.3.2 Soft-Start
      3. 8.3.3 Power Good (PG)
      4. 8.3.4 Undervoltage Lockout (UVLO)
      5. 8.3.5 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Pulse Width Modulation (PWM) Operation
      2. 8.4.2 Power Save Mode (PSM) Operation
      3. 8.4.3 Minimum Duty Cycle and 100% Mode Operation
      4. 8.4.4 Current Limit and Short Circuit Protection
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Custom Design With WEBENCH® Tools
        2. 9.2.2.2 Setting the Adjustable Output Voltage
        3. 9.2.2.3 Feed-forward Capacitor Selection
        4. 9.2.2.4 Output Filter Selection
        5. 9.2.2.5 Inductor Selection
        6. 9.2.2.6 Output Capacitor Selection
        7. 9.2.2.7 Input Capacitor Selection
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Related Links
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Community Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

9.2.3 Application Curves

VIN=5V, VOUT=1.8V, TA=25°C, BOM = Table 2, (unless otherwise noted)

TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62821_eff33_iout.gif
Figure 8. Efficiency TPS62821 at VOUT=3.3V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62822_eff33_iout.gif
Figure 10. Efficiency TPS62822 at VOUT=3.3V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62823_eff33_iout.gif
Figure 12. Efficiency TPS62823 at VOUT=3.3V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62821_eff18_iout.gif
Figure 14. Efficiency TPS62821 at VOUT=1.8V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62822_eff18_iout.gif
Figure 16. Efficiency TPS62822 at VOUT=1.8V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62823_eff18_iout.gif
Figure 18. Efficiency TPS62823 at VOUT=1.8V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62821_eff1_iout.gif
Figure 20. Efficiency TPS62821 at VOUT=1V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62822_eff1_iout.gif
Figure 22. Efficiency TPS62822 at VOUT=1V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62823_eff1_iout.gif
Figure 24. Efficiency TPS62823 at VOUT=1V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62821_eff06_iout.gif
Figure 26. Efficiency TPS62821 at VOUT=0.6V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62822_eff06_iout.gif
Figure 28. Efficiency TPS62822 at VOUT=0.6V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62823_eff06_iout.gif
Figure 30. Efficiency TPS62823 at VOUT=0.6V
TPS62821 TPS62822 TPS62823 SLVSDV6_loadreg_lin.gif
Figure 32. Output Voltage Accuracy (Load Regulation)
TPS62821 TPS62822 TPS62823 SLVSDV6_frequency_iout.gif
Figure 34. Switching Frequency vs Output Current
TPS62821 TPS62822 TPS62823 D001.gif
RLOAD = 2.20 Ω, VIN = 5.5 V (battery supply), VOUT = 1.8 V, EMI test board without filters
Figure 36. TPS62821 Radiated Emission
TPS62821 TPS62822 TPS62823 D003.gif
RLOAD = 0.68 Ω, VIN = 5.5 V (battery supply), VOUT = 1.8 V, EMI test board without filters
Figure 38. TPS62823 Radiated Emission
TPS62821 TPS62822 TPS62823 SLVSDV6_typ0.1A.gif
COUT=2x10µF IOUT=0.1A
Figure 40. Typical Operation PSM
TPS62821 TPS62822 TPS62823 SLVSDV6_stup_zero.gif
COUT=2x10µF
Figure 42. Startup at No Load
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62823_discharge_noload.gif
COUT=2x10µF
Figure 44. Active Output Discharge at No Load
TPS62821 TPS62822 TPS62823 SLVSDV6_tran_1to2.gif
COUT=2x10µF Cff=120pF
Figure 46. Load Transient Response, 1A to 2A, TPS62822
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62823_bode_120pCff.gif
COUT=2x10µF CFF=120pF
Figure 48. Frequency Response (TPS62823), IOUT=3A
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62823_overload_2.gifFigure 50. Overload Response of TPS62823 (Hiccup cycle)
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62821_eff33_vin.gif
Figure 9. Efficiency TPS62821 at VOUT=3.3V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62822_eff33_vin.gif
Figure 11. Efficiency TPS62822 at VOUT=3.3V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62823_eff33_vin.gif
Figure 13. Efficiency TPS62823 at VOUT=3.3V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62821_eff18_vin.gif
Figure 15. Efficiency TPS62821 at VOUT=1.8V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62822_eff18_vin.gif
Figure 17. Efficiency TPS62822 at VOUT=1.8V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62823_eff18_vin.gif
Figure 19. Efficiency TPS62823 at VOUT=1.8V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62821_eff1_vin.gif
Figure 21. Efficiency TPS62821 at VOUT=1V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62822_eff1_vin.gif
Figure 23. Efficiency TPS62822 at VOUT=1V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62823_eff1_vin.gif
Figure 25. Efficiency TPS62823 at VOUT=1V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62821_eff06_vin.gif
Figure 27. Efficiency TPS62821 at VOUT=0.6V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62822_eff06_vin.gif
Figure 29. Efficiency TPS62822 at VOUT=0.6V
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62823_eff06_vin.gif
Figure 31. Efficiency TPS62823 at VOUT=0.6V
TPS62821 TPS62822 TPS62823 SLVSDV6_linereg_lin.gif
Figure 33. Output Voltage Accuracy (Line Regulation)
TPS62821 TPS62822 TPS62823 SLVSDV6_frequency_vin.gif
Figure 35. Switching Frequency vs Input Voltage
TPS62821 TPS62822 TPS62823 D002.gif
RLOAD = 1.00 Ω, VIN = 5.5 V (battery supply), VOUT = 1.8 V, EMI test board without filters
Figure 37. TPS62822 Radiated Emission
TPS62821 TPS62822 TPS62823 SLVSDV6_typ1A.gif
COUT=2x10µF IOUT=1A
Figure 39. Typical Operation PWM
TPS62821 TPS62822 TPS62823 SLVSDV6_stup_0.57Ohm.gif
COUT=2x10µF
Figure 41. Startup into 0.6-Ohm (TPS62823)
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62823_discharge_1.8Ohm.gif
COUT=2x10µF
Figure 43. Active Output Discharge at load 1.8-Ohm
TPS62821 TPS62822 TPS62823 SLVSDV6_tran_005to1.gif
COUT=2x10µF Cff=120pF
Figure 45. Load Transient Response, 50mA to 1A, TPS62822
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62823_bode_noCff.gif
COUT=2x10µF no CFF
Figure 47. Frequency Response (TPS62823), IOUT=3A
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62823_overload_1.gifFigure 49. Overload Response of TPS62823
TPS62821 TPS62822 TPS62823 SLVSDV6_TPS62823_thermal.gifFigure 51. Device Temperature Rise on TPS62823 EVM at IOUT=3A