SLUSG31 November   2025 TPSM828502-Q1

PRODMIX  

  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 (PFM/PWM)
      3. 8.4.3 100% Duty-Cycle Operation
      4. 8.4.4 Current Limit and Short-Circuit Protection
      5. 8.4.5 Output Discharge
  10. 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 Setting the Output Voltage
        2. 9.2.2.2 Feedforward Capacitor
        3. 9.2.2.3 Input Capacitor
        4. 9.2.2.4 Output Capacitor
      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
        1. 9.5.2.1 Thermal Consideration
  11. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Third-Party Products Disclaimer
    2. 10.2 Documentation Support
      1. 10.2.1 Related Documentation
    3. 10.3 Receiving Notification of Documentation Updates
    4. 10.4 Support Resources
    5. 10.5 Trademarks
    6. 10.6 Electrostatic Discharge Caution
    7. 10.7 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

9.2.3 Application Curves

TA = 25°C, VIN = 5V, VOUT = 1.8V, 1.8MHz, PWM mode, BOM = Table 7-1 unless otherwise noted.

TPSM828502-Q1 Efficiency versus Output Current
VOUT = 3.3V PWM TA = 85°C
Figure 9-2 Efficiency versus Output Current
TPSM828502-Q1 Efficiency versus Output Current
VOUT = 2.5V PWM TA = 85°C
Figure 9-4 Efficiency versus Output Current
TPSM828502-Q1 Efficiency versus Output Current
VOUT = 1.8V PWM TA = 85°C
Figure 9-6 Efficiency versus Output Current
TPSM828502-Q1 Efficiency versus Output Current
VOUT = 1.1V PWM TA = 85°C
Figure 9-8 Efficiency versus Output Current
TPSM828502-Q1 Efficiency versus Output Current
VOUT = 0.6V PWM TA = 85°C
Figure 9-10 Efficiency versus Output Current
TPSM828502-Q1 Efficiency versus Output Current
VOUT = 3.3V PFM TA = 85°C
Figure 9-12 Efficiency versus Output Current
TPSM828502-Q1 Efficiency versus Output Current
VOUT = 2.5V PFM TA = 85°C
Figure 9-14 Efficiency versus Output Current
TPSM828502-Q1 Efficiency versus Output Current
VOUT = 1.8V PFM TA = 85°C
Figure 9-16 Efficiency versus Output Current
TPSM828502-Q1 Efficiency versus Output Current
VOUT = 1.1V PFM TA = 85°C
Figure 9-18 Efficiency versus Output Current
TPSM828502-Q1 Efficiency versus Output Current
VOUT = 0.6V PFM TA = 85°C
Figure 9-20 Efficiency versus Output Current
TPSM828502-Q1 Load Regulation VIN = 3.3V
PFM Mode TA = 25°C
Figure 9-22 Load Regulation VIN = 3.3V
TPSM828502-Q1 Load Regulation VIN = 5V
PFM Mode TA = 25°C
Figure 9-24 Load Regulation VIN = 5V
TPSM828502-Q1 Load Transient Response
VOUT = 0.6VPWMTA = 25°C
VIN = 3.3VIOUT = 0.2A to 1.8A
Figure 9-26 Load Transient Response
TPSM828502-Q1 Load Transient Response
VOUT = 3.3VPWMTA = 25°C
VIN = 5.0VIOUT = 0.2A to 1.8A
Figure 9-28 Load Transient Response
TPSM828502-Q1 Output and Input Voltage Ripple
VOUT = 0.6VPWMTA = 25°C
IOUT = 0.2AVIN = 3.3VBW = 20MHz
Figure 9-30 Output and Input Voltage Ripple
TPSM828502-Q1 Output and Input Voltage Ripple
VOUT = 3.3VPWMTA = 25°C
IOUT = 0.2AVIN = 5.0VBW = 20MHz
Figure 9-32 Output and Input Voltage Ripple
TPSM828502-Q1 Start-Up Timing
VOUT = 0.6VPWM/PFMTA = 25°C
IOUT = 2AVIN = 3.3VCSS = 4.7nF
Figure 9-34 Start-Up Timing
TPSM828502-Q1 Radiated Emissions
VOUT = 1.8VPWMTA = 25°C
IOUT = 2AVIN = 6Vmeasured on TPSM828512EVM
Figure 9-36 Radiated Emissions
TPSM828502-Q1 Efficiency versus Output Current
VOUT = 3.3V PWM TA = 25°C
Figure 9-3 Efficiency versus Output Current
TPSM828502-Q1 Efficiency versus Output Current
VOUT = 2.5V PWM TA = 25°C
Figure 9-5 Efficiency versus Output Current
TPSM828502-Q1 Efficiency versus Output Current
VOUT = 1.8V PWM TA = 25°C
Figure 9-7 Efficiency versus Output Current
TPSM828502-Q1 Efficiency versus Output Current
VOUT = 1.1V PWM TA = 25°C
Figure 9-9 Efficiency versus Output Current
TPSM828502-Q1 Efficiency versus Output Current
VOUT = 0.6V PWM TA = 25°C
Figure 9-11 Efficiency versus Output Current
TPSM828502-Q1 Efficiency versus Output Current
VOUT = 3.3V PFM TA = 25°C
Figure 9-13 Efficiency versus Output Current
TPSM828502-Q1 Efficiency versus Output Current
VOUT = 2.5V PFM TA = 25°C
Figure 9-15 Efficiency versus Output Current
TPSM828502-Q1 Efficiency versus Output Current
VOUT = 1.8V PFM TA = 25°C
Figure 9-17 Efficiency versus Output Current
TPSM828502-Q1 Efficiency versus Output Current
VOUT = 1.1V PFM TA = 25°C
Figure 9-19 Efficiency versus Output Current
TPSM828502-Q1 Efficiency versus Output Current
VOUT = 0.6V PFM TA = 25°C
Figure 9-21 Efficiency versus Output Current
TPSM828502-Q1 Load Regulation VIN = 3.3V
PWM Mode TA = 25°C
Figure 9-23 Load Regulation VIN = 3.3V
TPSM828502-Q1 Load Regulation VIN = 5V
PWM Mode TA = 25°C
Figure 9-25 Load Regulation VIN = 5V
TPSM828502-Q1 Load Transient Response
VOUT = 0.6V

PFM

TA = 25°C
VIN = 3.3VIOUT = 0.2A to 1.8A
Figure 9-27 Load Transient Response
TPSM828502-Q1 Load Transient Response
VOUT = 3.3VPFMTA = 25°C
VIN = 5.0VIOUT = 0.2A to 1.8A
Figure 9-29 Load Transient Response
TPSM828502-Q1 Output and Input Voltage Ripple
VOUT = 0.6VPFMTA = 25°C
IOUT = 0.2AVIN = 3.3VBW = 20MHz
Figure 9-31 Output and Input Voltage Ripple
TPSM828502-Q1 Output and Input Voltage Ripple
VOUT = 3.3VPFMTA = 25°C
IOUT = 0.2AVIN = 5.0VBW = 20MHz
Figure 9-33 Output and Input Voltage Ripple
TPSM828502-Q1 Radiated Emissions
VOUT = 1.2VPWMTA = 25°C
IOUT = 2AVIN = 6Vmeasured on TPSM828512EVM
Figure 9-35 Radiated Emissions
TPSM828502-Q1 Radiated Emissions
VOUT = 3.3VPWMTA = 25°C
IOUT = 2AVIN = 6Vmeasured on TPSM828512EVM
Figure 9-37 Radiated Emissions