SLVSDD1E December   2017  – January 2019 TPS62800 , TPS62801 , TPS62802 , TPS62806 , TPS62807 , TPS62808

UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application
      2.      Efficiency vs. IOUT at 1.2VOUT
  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 Smart Enable and Shutdown (EN)
      2. 8.3.2 Softstart
      3. 8.3.3 VSEL/MODE Pin
        1. 8.3.3.1 Output Voltage Selection (R2D Converter)
        2. 8.3.3.2 Mode Selection: Power Save Mode / Forced PWM Operation
      4. 8.3.4 Undervoltage Lockout (UVLO)
      5. 8.3.5 Switch Current Limit / Short Circuit Protection
      6. 8.3.6 Thermal Shutdown
      7. 8.3.7 Output Voltage Discharge
    4. 8.4 Device Functional Modes
      1. 8.4.1 Power Save Mode Operation
      2. 8.4.2 Forced PWM Mode Operation
      3. 8.4.3 100% Mode Operation
      4. 8.4.4 Optimized Transient Performance from PWM to PFM Mode Operation
  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 Inductor Selection
        3. 9.2.2.3 Output Capacitor Selection
        4. 9.2.2.4 Input Capacitor Selection
      3. 9.2.3 Application Curves
    3. 9.3 System Examples
  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 Custom Design With WEBENCH® Tools
    3. 12.3 Related Links
    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

Package Options

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

9.2.3 Application Curves

The conditions for the below application curves are VIN = 3.6 V, VOUT = 1.2 V and the components listed in Table 2, unless otherwise noted.

TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_eff_0p4V_VO_PFM_TPS62800_A1.gif
TPS62800 RVSEL = 10 kΩ to GND
Figure 12. Efficiency Power Save Mode VOUT = 0.4 V
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_eff_0p8V_VO_PFM_A1.gif
TPS62801 RVSEL = 10 kΩ to GND
Figure 14. Efficiency Power Save Mode VOUT = 0.8 V
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_eff_1p2V_VO_FPWM_A1.gif
TPS62801 RVSEL = 56.2 kΩ,
VSEL/MODE pin = high after startup
Figure 16. Efficiency Forced PWM Mode VOUT = 1.2 V
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_L_comp_3p6V_1p2V.gif
TPS62801 VSEL/MODE = GND, VOUT = 1.2V
Figure 18. Inductor Comparison
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_eff_3p3V_VO_PFM_A1.gif
TPS62802 3.3 V VOUT, VSEL/MODE = 249k
Figure 20. Efficiency Power Save Mode VOUT = 3.3 V
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 Efficiency_TPS62807(1p2v).gif
TPS62807 VOUT = 1.2 V , VSEL/MODE = GND
L = 1 µH DFE201610E
Figure 22. Efficiency Power Save Mode VOUT = 1.2 V
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_1p2VO_vs_IO_25DGC_A1.gif
TPS62801 VSEL/MODE = GND
VOUT = 1.2 V PFM/PWM Mode TJ = 25°C
Figure 24. Output Voltage vs. Output Current
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_1p2VO_vs_IO_85DGC_A1.gif
TPS62801 VSEL/MODE = GND
VOUT = 1.2 V PFM/PWM Mode TJ = 85°C
Figure 26. Output Voltage vs. Output Current
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_1p2VO_vs_IO_-40DGC_FPWM_A1.gif
TPS62801 VSEL/MODE = high after startup
VOUT = 1.2 V Forced PWM Mode TJ = –40°C
Figure 28. Output Voltage vs. Output Current
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_1p2V_fsw_vs_Io_PFM_25DGC.gif
TPS62801 VSEL/MODE = GND
VOUT = 1.2 V PFM/PWM Mode TJ = 25°C
Figure 30. Switching Frequency vs. Output Current
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_1p2V_fsw_vs_Io_FPWM_25DGC.gif
TPS62801 VSEL/MODE = high after startup
VOUT = 1.2 V Forced PWM Mode TJ = 25°C
Figure 32. Switching Frequency vs. Output Current
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_fs_806_0p7V.gif
TPS62806 VSEL/MODE = GND L = 1µH
VOUT = 0.7 V PFM/PWM Mode TJ = 25°C
Figure 34. Switching Frequency vs. Output Current
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 TOVO1p2VPSM10mA_a1.gif
TPS62801 VOUT = 1.2 V VSEL/MODE = GND
IOUT = 10 mA PFM Mode
Figure 36. Typical Operation Power Save Mode
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 TOVO_0p7V_FPWM_VIN3p6V_0mA_A1.gif
TPS62806 VOUT = 0.7 V VSEL/MODE = VIN (after startup)
VIN = 3.8 V IOUT = 0 mA PFM Mode, L = 1µH DFE201610E
Figure 38. TPS62806 typical forced PWM mode operation (1.5MHz)
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 TOVO1p2VFPWM0mA_a1.gif
TPS62801 VOUT = 1.2 V IOUT = 0 mA
Forced PWM Mode VSEL/MODE = VIN (after startup)
Figure 40. Typical Operation Forced PWM Mode
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 LostepVO1p2VPSM5mA500mA_a1.gif
TPS62801 VOUT = 1.2 V VSEL/MODE = GND
rise / fall time < 1 µs PFM / PWM Mode
IOUT = 5 mA to 500 mA
Figure 42. Load Transient Power Save Mode
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 ACSw_1mA1000mAVO1p2VPFM_A1.gif
TPS62801 VOUT = 1.2 V VSEL/MODE = GND
IOUT = 1 mA to 1 A 1 kHz PFM/PWM Mode
Figure 44. AC Load Sweep Power Save Mode
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 TO_LinT_3p6V_4p2V_50mA_VO1p2VPSM_a1.gif
TPS62801 VOUT = 1.2 V VIN = 3.6 V to 4.2 V
rise / fall time = 10 µs IOUT = 50 mA
Figure 46. Line Transient PFM Mode
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SPstartupVO_0p8V_220R_VSEL_10k_a1.gif
TPS62801 VOUT = 0.8 V VSEL/MODE = Low
RVSEL = 10 kΩ (via RVSEL)
RLoad = 220 Ω
Figure 48. Startup VOUT = 0.8 V
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SPstartupVO_1p55V_220R_VSEL_249k_a1.gif
TPS62801 VOUT = 1.55 V VSEL/MODE = Low
RVSEL = 249 kΩ (via RVSEL)
RLoad = 220 Ω
Figure 50. Startup VOUT = 1.55 V
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_SUD_VSEL_0_A1.gif
VSEL/MODE = GND
Figure 52. Startup Delay Time, VSEL = 0
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_SUD_VSEL_7_A1.gif
RVSEL = 36.5kΩ
Figure 54. Startup Delay Time, VSEL = 7
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_SUD_VSEL_16_A1.gif
RVSEL = 249kΩ
Figure 56. Startup Delay Time, VSEL = 16
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_eff_0p7V_VO_PFM_TPS62800_A1.gif
TPS62800 VSEL/MODE = GND
Figure 13. Efficiency Power Save Mode VOUT = 0.7 V
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_eff_0p9V_VO_PFM_A1.gif
TPS62801 RVSEL = 15.4 kΩ to GND
Figure 15. Efficiency Power Save Mode VOUT = 0.9 V
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_eff_1p2V_VO_PFM_A1.gif
TPS62801 VSEL/MODE = GND
Figure 17. Efficiency Power Save Mode VOUT = 1.2 V
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_eff_1p8V_VO_PFM_A1.gif
TPS62802 VSEL/MODE = GND
Figure 19. Efficiency Power Save Mode VOUT = 1.8 V
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_eff_0p7V_VO_PFM_A1.gif
TPS62806 VOUT = 0.7 V , VSEL/MODE = GND
L = 1 µH DFE201610E
Figure 21. Efficiency Power Save Mode VOUT = 0.7 V
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 Efficiency_TPS62808(1p8v).gif
TPS62808 VOUT = 1.8 V , VSEL/MODE = GND
L = 1 µH DFE201610E
Figure 23. Efficiency Power Save Mode VOUT = 1.8 V
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_1p2VO_vs_IO_-40DGC_A1.gif
TPS62801 VSEL/MODE = GND
VOUT = 1.2 V PFM/PWM Mode TJ = –40°C
Figure 25. Output Voltage vs. Output Current
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_1p2VO_vs_IO_25DGC_FPWM_A1.gif
TPS62801 VSEL/MODE = high after startup
VOUT = 1.2 V Forced PWM Mode TJ = 25°C
Figure 27. Output Voltage vs. Output Current
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_1p2VO_vs_IO_85DGC_FPWM_A1.gif
TPS62801 VSEL/MODE = high after startup
VOUT = 1.2 V Forced PWM Mode TJ = 85°C
Figure 29. Output Voltage vs. Output Current
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_1p2V_fsw_vs_Io_PFM_25DGC_zoom.gif
TPS62801 VSEL/MODE = GND
VOUT = 1.2 V PFM/PWM Mode TJ = 25°C
Figure 31. Switching Frequency (zoom in)
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_0p8V_fsw_vs_Io_PFM_25DGC.gif
TPS62801 VSEL/MODE = 10 kΩ to GND
VOUT = 0.8 V PFM/PWM Mode TJ = 25°C
Figure 33. Switching Frequency vs. Output Current
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 TOVO1p2VPSM25uA_a1.gif
TPS62801 VOUT = 1.2 V VSEL/MODE = GND
IOUT = 25 µA PFM Mode
Figure 35. Typical Operation Power Save Mode
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 TOVO_0p7V_PSM_VIN3p8V_10mA_A1.gif
TPS62806 VOUT = 0.7 V VSEL/MODE = GND
VIN = 3.8 V IOUT = 10 mA PFM Mode, L = 1µH DFE201610E
Figure 37. TPS62806 Typical operation Power Save Mode
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 TOVO1p2VPSM500mA_a1.gif
TPS62801 VOUT = 1.2 V VSEL/MODE = GND
IOUT = 500 mA PWM Mode
Figure 39. Typical Operation PWM Mode
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 LostepVO1p2VPSM0mA50mA_a1.gif
TPS62801 VOUT = 1.2 V VSEL/MODE = GND
rise / fall time < 1 µs IOUT = 0 mA to 50 mA, PFM Mode
Figure 41. Load Transient Power Save Mode
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 LostepVO1p2VFPWM5mA500mA_a1.gif
TPS62801 VOUT = 1.2 V VSEL/MODE = VIN
rise / fall time < 1 µs (after startup)
Forced PWM Mode IOUT = 5 mA to 500 mA
Figure 43. Load Transient Forced PWM Mode
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 ACSw_1mA1000mAVO1p2VFPWM_A1.gif
TPS62801 VOUT = 1.2 V VSEL/MODE = VIN
IOUT = 1 mA to 1 A, 1 kHz (after startup)
Forced PWM Mode
Figure 45. AC Load Sweep Forced PWM Mode
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 TO_LinT_3p6V_4p2V_500mA_VO1p2VPSM_a1.gif
TPS62801 VOUT = 1.2 V VIN = 3.6 V to 4.2 V
rise / fall time = 10 µs IOUT = 500 mA
Figure 47. Line Transient PWM Mode
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SPstartupVO1p2V_220R_VSEL_GND_a1.gif
TPS62801 VOUT = 1.2 V VSEL/MODE = GND
RLoad = 220 Ω
Figure 49. Startup VOUT = 1.2 V
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SPoutdischVO1p2VPWM.gif
TPS62801 VOUT = 1.2 V VSEL/MODE = VIN
EN = high to low No Load
Figure 51. Output Discharge
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_SUD_VSEL_1_A1.gif
RVSEL = 10kΩ
Figure 53. Startup Delay Time, VSEL = 1
TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808 SLVSDD1_SUD_VSEL_8_A1.gif
RVSEL = 44.2kΩ
Figure 55. Startup Delay Time, VSEL = 8