SLUSEC8C March   2021  – June 2025 TPS628501 , TPS628502 , TPS628503

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 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
  8. 7 Parameter Measurement Information
    1. 7.1 Schematic
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Precise Enable (EN)
      2. 8.3.2 COMP/FSET
      3. 8.3.3 MODE / SYNC
      4. 8.3.4 Spread Spectrum Clocking (SSC)
      5. 8.3.5 Undervoltage Lockout (UVLO)
      6. 8.3.6 Power Good Output (PG)
      7. 8.3.7 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Pulse Width Modulation (PWM) Operation
      2. 8.4.2 Power Save Mode Operation (PWM/PFM)
      3. 8.4.3 100% Duty-Cycle Operation
      4. 8.4.4 Current Limit and Short Circuit Protection
      5. 8.4.5 Foldback Current Limit and Short Circuit Protection
      6. 8.4.6 Output Discharge
      7. 8.4.7 Soft Start
      8. 8.4.8 Input Overvoltage Protection
  10. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Programming the Output Voltage
      2. 9.1.2 Inductor Selection
      3. 9.1.3 Capacitor Selection
        1. 9.1.3.1 Input Capacitor
        2. 9.1.3.2 Output Capacitor
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
    3. 9.3 System Examples
      1. 9.3.1 Synchronizing to an External Clock
    4. 9.4 Power Supply Recommendations
    5. 9.5 Layout
      1. 9.5.1 Layout Guidelines
      2. 9.5.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Third-Party Products Disclaimer
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

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

9.2.3 Application Curves

All plots have been taken with a nominal switching frequency of 2.25 MHz when set to PWM mode, unless otherwise noted. The BOM is according to Table 7-1.

TPS628501 TPS628502 TPS628503 Efficiency Versus Output Current
VOUT = 3.3 V PFM TA = 25°C
Figure 9-2 Efficiency Versus Output Current
TPS628501 TPS628502 TPS628503 Efficiency Versus Output Current
VOUT = 1.8 V PFM TA = 25°C
Figure 9-4 Efficiency Versus Output Current
TPS628501 TPS628502 TPS628503 Efficiency Versus Output Current
VOUT = 1.1 V PFM TA = 25°C
Figure 9-6 Efficiency Versus Output Current
TPS628501 TPS628502 TPS628503 Efficiency Versus Output Current
VOUT = 0.6 V PFM TA = 25°C
Figure 9-8 Efficiency Versus Output Current
TPS628501 TPS628502 TPS628503 Output Voltage Versus Output Current
VOUT = 3.3 V PFM TA = 25°C
Figure 9-10 Output Voltage Versus Output Current
TPS628501 TPS628502 TPS628503 Output Voltage Versus Output Current
VOUT = 1.8 V PFM TA = 25°C
Figure 9-12 Output Voltage Versus Output Current
TPS628501 TPS628502 TPS628503 Output Voltage Versus Output Current
VOUT = 1.1 V PFM TA = 25°C
Figure 9-14 Output Voltage Versus Output Current
TPS628501 TPS628502 TPS628503 Output Voltage Versus Output Current
VOUT = 0.6 V PFM TA = 25°C
Figure 9-16 Output Voltage Versus Output Current
TPS628501 TPS628502 TPS628503 Output Current Versus Ambient Temperature
VOUT = 0.6 V PWM θJA = 60°C/W
Figure 9-18 Output Current Versus Ambient Temperature
TPS628501 TPS628502 TPS628503 Output Current Versus Ambient Temperature
VOUT = 1.8 V PWM θJA = 60°C/W
Figure 9-20 Output Current Versus Ambient Temperature
TPS628501 TPS628502 TPS628503 Load Transient Response
VOUT = 3.3 VPFMTA = 25°C
VIN = 5.0 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-22 Load Transient Response
TPS628501 TPS628502 TPS628503 Load Transient Response
VOUT = 1.8 VPFMTA = 25°C
VIN = 5.0 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-24 Load Transient Response
TPS628501 TPS628502 TPS628503 Load Transient Response
VOUT = 1.2 VPFMTA = 25°C
VIN = 5.0 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-26 Load Transient Response
TPS628501 TPS628502 TPS628503 Load Transient Response
VOUT = 1.0 VPFMTA = 25°C
VIN = 5.0 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-28 Load Transient Response
TPS628501 TPS628502 TPS628503 Load Transient Response
VOUT = 0.6 VPFMTA = 25°C
VIN = 3.3 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-30 Load Transient Response
TPS628501 TPS628502 TPS628503 Line Transient Response
VOUT = 3.3 VPFMTA = 25°C
IOUT = 0.2 AVIN = 4.5 V to 5.5 V to 4.5 V
Figure 9-32 Line Transient Response
TPS628501 TPS628502 TPS628503 Line Transient Response
VOUT = 1.8 VPFMTA = 25°C
IOUT = 0.2 AVIN = 4.5 V to 5.5 V to 4.5 V
Figure 9-34 Line Transient Response
TPS628501 TPS628502 TPS628503 Line Transient Response
VOUT = 1.2 VPFMTA = 25°C
IOUT = 0.2 AVIN = 4.5 V to 5.5 V to 4.5 V
Figure 9-36 Line Transient Response
TPS628501 TPS628502 TPS628503 Line Transient Response
VOUT = 1.0 VPFMTA = 25°C
IOUT = 0.2 AVIN = 4.5 V to 5.5 V to 4.5 V
Figure 9-38 Line Transient Response
TPS628501 TPS628502 TPS628503 Line Transient Response
VOUT = 0.6 VPFMTA = 25°C
IOUT = 0.2 AVIN = 3.0 V to 3.6 V to 3.0 V
Figure 9-40 Line Transient Response
TPS628501 TPS628502 TPS628503 Output Voltage Ripple
VOUT = 3.3 VPFMTA = 25°C
VIN = 5 VIOUT = 0.2 A
Figure 9-42 Output Voltage Ripple
TPS628501 TPS628502 TPS628503 Output Voltage Ripple
VOUT = 1.8 VPFMTA = 25°C
VIN = 5 VIOUT = 0.2 A
Figure 9-44 Output Voltage Ripple
TPS628501 TPS628502 TPS628503 Output Voltage Ripple
VOUT = 1.2 VPFMTA = 25°C
VIN = 5 VIOUT = 0.2 A
Figure 9-46 Output Voltage Ripple
TPS628501 TPS628502 TPS628503 Output Voltage Ripple
VOUT = 1.0 VPFMTA = 25°C
VIN = 5 VIOUT = 0.2 A
Figure 9-48 Output Voltage Ripple
TPS628501 TPS628502 TPS628503 Output Voltage Ripple
VOUT = 0.6 VPFMTA = 25°C
VIN = 3.3 VIOUT = 0.2 A
Figure 9-50 Output Voltage Ripple
TPS628501 TPS628502 TPS628503 Start-Up Timing
VOUT = 3.3 VPWM or PFMTA = 25°C
VIN = 5 VIOUT = 2 A
Figure 9-52 Start-Up Timing
TPS628501 TPS628502 TPS628503 Start-Up Timing
VOUT = 1.2 VPWM or PFMTA = 25°C
VIN = 5 VIOUT = 2 A
Figure 9-54 Start-Up Timing
TPS628501 TPS628502 TPS628503 Start-Up Timing
VOUT = 0.6 VPWM or PFMTA = 25°C
VIN = 3.3 VIOUT = 2 A
Figure 9-56 Start-Up Timing
TPS628501 TPS628502 TPS628503 Efficiency Versus Output Current
VOUT = 3.3 V PWM TA = 25°C
Figure 9-3 Efficiency Versus Output Current
TPS628501 TPS628502 TPS628503 Efficiency Versus Output Current
VOUT = 1.8 V PWM TA = 25°C
Figure 9-5 Efficiency Versus Output Current
TPS628501 TPS628502 TPS628503 Efficiency Versus Output Current
VOUT = 1.1 V PWM TA = 25°C
Figure 9-7 Efficiency Versus Output Current
TPS628501 TPS628502 TPS628503 Efficiency Versus Output Current
VOUT = 0.6 V PWM TA = 25°C
Figure 9-9 Efficiency Versus Output Current
TPS628501 TPS628502 TPS628503 Output Voltage Versus Output Current
VOUT = 3.3 V PWM TA = 25°C
Figure 9-11 Output Voltage Versus Output Current
TPS628501 TPS628502 TPS628503 Output Voltage Versus Output Current
VOUT = 1.8 V PWM TA = 25°C
Figure 9-13 Output Voltage Versus Output Current
TPS628501 TPS628502 TPS628503 Output Voltage Versus Output Current
VOUT = 1.1 V PWM TA = 25°C
Figure 9-15 Output Voltage Versus Output Current
TPS628501 TPS628502 TPS628503 Output Voltage Versus Output Current
VOUT = 0.6 V PWM TA = 25°C
Figure 9-17 Output Voltage Versus Output Current
TPS628501 TPS628502 TPS628503 Output Current Versus Ambient Temperature
VOUT = 1.1 V PWM θJA = 60°C/W
Figure 9-19 Output Current Versus Ambient Temperature
TPS628501 TPS628502 TPS628503 Output Current Versus Ambient Temperature
VOUT = 3.3 V PWM θJA = 60°C/W
Figure 9-21 Output Current Versus Ambient Temperature
TPS628501 TPS628502 TPS628503 Load Transient Response
VOUT = 3.3 VPWMTA = 25°C
VIN = 5.0 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-23 Load Transient Response
TPS628501 TPS628502 TPS628503 Load Transient Response
VOUT = 1.8 VPWMTA = 25°C
VIN = 5.0 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-25 Load Transient Response
TPS628501 TPS628502 TPS628503 Load Transient Response
VOUT = 1.2 VPWMTA = 25°C
VIN = 5.0 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-27 Load Transient Response
TPS628501 TPS628502 TPS628503 Load Transient Response
VOUT = 1.0 VPWMTA = 25°C
VIN = 5.0 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-29 Load Transient Response
TPS628501 TPS628502 TPS628503 Load Transient Response
VOUT = 0.6 VPWMTA = 25°C
VIN = 3.3 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-31 Load Transient Response
TPS628501 TPS628502 TPS628503 Line Transient Response
VOUT = 3.3 VPWMTA = 25°C
IOUT = 2 AVIN = 4.5 V to 5.5 V to 4.5 V
Figure 9-33 Line Transient Response
TPS628501 TPS628502 TPS628503 Line Transient Response
VOUT = 1.8 VPWMTA = 25°C
IOUT = 2 AVIN = 4.5 V to 5.5 V to 4.5 V
Figure 9-35 Line Transient Response
TPS628501 TPS628502 TPS628503 Line Transient Response
VOUT = 1.2 VPWMTA = 25°C
IOUT = 2 AVIN = 4.5 V to 5.5 V to 4.5 V
Figure 9-37 Line Transient Response
TPS628501 TPS628502 TPS628503 Line Transient Response
VOUT = 1.0 VPWMTA = 25°C
IOUT = 2 AVIN = 4.5 V to 5.5 V to 4.5 V
Figure 9-39 Line Transient Response
TPS628501 TPS628502 TPS628503 Line Transient Response
VOUT = 0.6 VPWMTA = 25°C
IOUT = 2 AVIN = 3.0 V to 3.6 V to 3.0 V
Figure 9-41 Line Transient Response
TPS628501 TPS628502 TPS628503 Output Voltage Ripple
VOUT = 3.3 VPWMTA = 25°C
VIN = 5 VIOUT = 2 A
Figure 9-43 Output Voltage Ripple
TPS628501 TPS628502 TPS628503 Output Voltage Ripple
VOUT = 1.8 VPWMTA = 25°C
VIN = 5 VIOUT = 2 A
Figure 9-45 Output Voltage Ripple
TPS628501 TPS628502 TPS628503 Output Voltage Ripple
VOUT = 1.2 VPWMTA = 25°C
VIN = 5 VIOUT = 2 A
Figure 9-47 Output Voltage Ripple
TPS628501 TPS628502 TPS628503 Output Voltage Ripple
VOUT = 1.0 VPWMTA = 25°C
VIN = 5 VIOUT = 2 A
Figure 9-49 Output Voltage Ripple
TPS628501 TPS628502 TPS628503 Output Voltage Ripple
VOUT = 0.6 VPWMTA = 25°C
VIN = 3.3 VIOUT = 2 A
Figure 9-51 Output Voltage Ripple
TPS628501 TPS628502 TPS628503 Start-Up Timing
VOUT = 1.8 VPWM or PFMTA = 25°C
VIN = 5 VIOUT = 2 A
Figure 9-53 Start-Up Timing
TPS628501 TPS628502 TPS628503 Start-Up Timing
VOUT = 1.0 VPWM or PFMTA = 25°C
VIN = 5 VIOUT = 2 A
Figure 9-55 Start-Up Timing