SLVS916I July   2010  – October 2019 TPS63020 , TPS63021

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Schematic
      2.      Efficiency vs Output 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 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 Dynamic Voltage Positioning
      2. 7.3.2 Dynamic Current Limit
      3. 7.3.3 Device Enable
      4. 7.3.4 Power Good
      5. 7.3.5 Overvoltage Protection
      6. 7.3.6 Undervoltage Lockout
      7. 7.3.7 Overtemperature Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Soft-start and Short Circuit Protection
      2. 7.4.2 Buck-Boost Operation
      3. 7.4.3 Control Loop
      4. 7.4.4 Power Save Mode and Synchronization
  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 Inductor Selection
        3. 8.2.2.3 Output Capacitor Selection
        4. 8.2.2.4 Input Capacitor Selection
        5. 8.2.2.5 Bypass Capacitor
      3. 8.2.3 Setting The Output Voltage
      4. 8.2.4 Application Curves
    3. 8.3 System Examples
      1. 8.3.1 Improved Transient Response for 2 A Load Current
      2. 8.3.2 Supercapacitor Backup Power Supply With Active Cell Balancing
      3. 8.3.3 Low-Power TEC Driver
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Thermal Considerations
  11. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Device Support
      1. 11.2.1 Custom Design with WEBENCH Tools
      2. 11.2.2 Third-Party Products Disclaimer
    3. 11.3 Documentation Support
      1. 11.3.1 Related Documentation
    4. 11.4 Related Links
    5. 11.5 Support Resources
    6. 11.6 Trademarks
    7. 11.7 Electrostatic Discharge Caution
    8. 11.8 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

8.2.4 Application Curves

Table 4. Components for Application Characteristic Curves for VOUT = 3.3 V(1)(2)

REFERENCE DESCRIPTION PART NUMBER MANUFACTURER
U1 High Efficiency Single Inductor Buck-Boost Converter With 4-A Switches TPS63020 or TPS63021 Texas Instruments
L1 1.5 μH, 4 mm x 4 mm x 2 mm XFL4020-152ML Coilcraft
C1 2 × 10 μF 6.3 V, 0603, X5R ceramic GRM188R60J106ME84D muRata
C2 3 × 22 μF 6.3 V, 0603, X5R ceramic GRM188R60J226MEAOL muRata
C3 0.1 μF, X5R or X7R ceramic Standard Standard
R1 1 MΩ at TPS63020, 0 Ω at TPS63021 Standard Standard
R2 180 kΩ at TPS63020, not used at TPS63021 Standard Standard
R3 1 MΩ Standard Standard
(2) For other output voltages, refer to Table 3 for resistor values.

Table 5. Typical Characteristics Curves

PARAMETER CONDITIONS FIGURE
EFFICIENCY
Efficiency vs Output Current, TPS63020 (Power save mode enabled) VIN = 1.8 V, 2.4 V, 3.6 V, VOUT = 2.5 V, 4.5 V, PS/SYNC = Low Figure 8
Efficiency vs Output Current, TPS63020 (PWM only) VIN = 1.8 V, 2.4 V, 3.6 V, VOUT = 2.5 V, 4.5 V, PS/SYNC = High Figure 9
Efficiency vs Output Current, TPS63021 (Power save mode enabled) VIN = 2.4 V, 3.6 V, VOUT = 3.3 V, PS/SYNC = Low Figure 10
Efficiency vs Output Current, TPS63021 (PWM only) VIN = 2.4 V, 3.6 V, VOUT = 3.3 V, PS/SYNC = High Figure 11
Efficiency vs Input Voltage, TPS63020 (Power save mode enabled) VOUT = 2.5 V, Load = 10 mA, 500 mA, 1 A, 2 A, PS/SYNC = Low Figure 12
Efficiency vs Input Voltage, TPS63020 (Power save mode enabled) VOUT = 4.5 V, Load = 10 mA, 500 mA, 1 A, 2 A, PS/SYNC = Low Figure 13
Efficiency vs Input Voltage, TPS63020 (PWM only) VOUT = 2.5 V, Load = 10 mA, 500 mA, 1 A, 2 A, PS/SYNC = Low Figure 14
Efficiency vs Input Voltage, TPS63020 (PWM only) VOUT = 2.5 V, Load = 10 mA, 500 mA, 1 A, 2 A, PS/SYNC = Low Figure 15
Efficiency vs Input Voltage, TPS63021 (Power save mode enabled) VOUT = 3.3 V, Load = 10 mA, 500 mA, 1 A, 2 A, PS/SYNC = Low Figure 16
Efficiency vs Input Voltage, TPS63021 (PWM only) VOUT = 3.3 V, Load = 10 mA, 500 mA, 1 A, 2 A, PS/SYNC = Low Figure 17
REGULATION ACCURACY
Load Regulation, PWM Boost Operation, TPS63020 VIN = 3.6 V , VOUT = 4.5 V, PS/SYNC = High Figure 18
Load Regulation, PWM Buck Operation, TPS63020 VIN = 3.6 V, VOUT = 2.5 V, PS/SYNC = High Figure 19
Load Regulation, PWM Operation, TPS63021 VIN = 3.6 V, VOUT = 3.3 V, PS/SYNC = High Figure 20
Load Transient, TPS63021 VIN = 2.4 V, VOUT = 3.3 V, Load = 500 mA to 1.5 A Figure 21
Load Transient, TPS63021 VIN = 4.2 V, VOUT = 3.3 V, Load = 500 mA to 1.5 A Figure 22
Line Transient, TPS63021 VIN = 3.0 V to 3.7 V, VOUT = 3.3 V, Load = 1.5 A Figure 23
START-UP
Start-up Behavior from Rising Enable, TPS63021 VIN = 2.4 V, VOUT = 3.3 V, Load = 2.2 Ω Figure 24
Start-up Behavior from Rising Enable, TPS63021 VIN = 4.2 V, VOUT = 3.3 V, Load = 2.2 Ω Figure 25
Start-up Behavior from Rising Enable, TPS63021 VIN = 2.4 V, VOUT = 3.3 V, Load = 2.2 Ω Figure 26
Start-up Behavior from Rising Enable, TPS63021 VIN = 4.2 V, VOUT = 3.3 V, Load = 2.2 Ω Figure 27
TPS63020 TPS63021 eff_io3_lvs916.gifFigure 8. Efficiency Versus Output Current, TPS63020, Power Save Enabled
TPS63020 TPS63021 eff_io5_lvs916.gifFigure 10. Efficiency Versus Output Current, TPS63021, Power Save Enabled
TPS63020 TPS63021 eff_vi7_lvs916.gifFigure 12. Efficiency Versus Input Voltage, TPS63020, VOUT = 2.5 V, Power Save Enabled
TPS63020 TPS63021 eff_vi9_lvs916.gifFigure 14. Efficiency Versus Input Voltage, TPS63020, VOUT = 2.5 V, Power Save Disabled
TPS63020 TPS63021 eff_vi11_lvs916.gifFigure 16. Efficiency Versus Input Voltage, TPS63021, Power Save Enabled
TPS63020 TPS63021 vo_io14_lvs916.gifFigure 18. Output Voltage Versus Output Current, TPS63020, Power Save Disabled
TPS63020 TPS63021 vo_io15_lvs916.gifFigure 20. Output Voltage Versus Output Current, TPS63021, Power Save Disabled
TPS63020 TPS63021 lotr_bu_lvs916.gifFigure 22. Load Transient Response, TPS63021
TPS63020 TPS63021 Startup_L1_4VIN2_slvs916.gifFigure 24. Start-up Behavior from Rising Enable, TPS63020
TPS63020 TPS63021 Startup_PG_2VIN4.gifFigure 26. Start-up Behavior from Rising Enable, TPS63020
TPS63020 TPS63021 eff_io4_lvs916.gifFigure 9. Efficiency Versus Output Current, TPS63020, Power Save Disabled
TPS63020 TPS63021 eff_io6_lvs916.gifFigure 11. Efficiency Versus Output Current, TPS63021, Power Save Disabled
TPS63020 TPS63021 eff_vi8_lvs916.gifFigure 13. Efficiency Versus Input Voltage, TPS63020, VOUT = 4.5 V, Power Save Enabled
TPS63020 TPS63021 eff_vi10_lvs916.gifFigure 15. Efficiency Versus Input Voltage, TPS63020, VOUT = 4.5 V, Power Save Disabled
TPS63020 TPS63021 eff_vi12_lvs916.gifFigure 17. Efficiency Versus Input Voltage, TPS63021, Power Save Disabled
TPS63020 TPS63021 vo_io13_lvs916.gifFigure 19. Output Voltage Versus Output Current, TPS63020, Power Save Enabled
TPS63020 TPS63021 lotr_bo_lvs916.gifFigure 21. Load Transient Response, TPS63021
TPS63020 TPS63021 litr_lvs916.gifFigure 23. Line Transient Response, TPS63021
TPS63020 TPS63021 Startup_L2_2VIN4_slvs916.gifFigure 25. Start-up Behavior from Rising Enable, TPS63020
TPS63020 TPS63021 Startup_PG_4VIN2.gifFigure 27. Start-up Behavior from Rising Enable, TPS63020