SLVSGM1C July   2023  – April 2025 TPSM828301 , TPSM828302 , TPSM828303

PRODMIX  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Options
  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 RDS Package
    5. 6.5 Thermal Information VCB Package
    6. 6.6 Electrical Characteristics
    7. 6.7 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Pulse Width Modulation (PWM) Operation
      2. 7.3.2 Power Save Mode (PSM) Operation
      3. 7.3.3 Start-Up and Soft Start
      4. 7.3.4 Switch Cycle-by-Cycle Current Limit
      5. 7.3.5 Undervoltage Lockout
      6. 7.3.6 Thermal Shutdown
      7. 7.3.7 Optimized EMI Performance
      8. 7.3.8 VOUT Accuracy
    4. 7.4 Device Functional Modes
      1. 7.4.1 Enable, Disable, and Output Discharge
      2. 7.4.2 Minimum Duty Cycle and 100% Mode Operation
      3. 7.4.3 Power Good
  9. 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 Setting The Output Voltage
        3. 8.2.2.3 Input Capacitor Selection
        4. 8.2.2.4 Output Capacitor Selection
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
        1. 8.4.2.1 Thermal Considerations
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Third-Party Products Disclaimer
      2. 9.1.2 Development Support
        1. 9.1.2.1 Custom Design With WEBENCH® Tools
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Tape and Reel Information

8.2.3 Application Curves

TA = 25°C, VIN = 5 V, VOUT = 1.8 V, BOM = Table 8-2 unless otherwise noted.

TPSM828301 TPSM828302 TPSM828303 Efficiency versus Output Current
VIN = 5 V

RDS package

TA = 25 °C

Figure 8-2 Efficiency versus Output Current
TPSM828301 TPSM828302 TPSM828303 Efficiency versus Output Current
VIN = 3.3 V

RDS package

TA = 25 °C
Figure 8-4 Efficiency versus Output Current
TPSM828301 TPSM828302 TPSM828303 Efficiency versus Output Current
VIN = 2.25 V

RDS package

TA = 25 °C
Figure 8-6 Efficiency versus Output Current
TPSM828301 TPSM828302 TPSM828303 Efficiency versus Output Current
VIN = 5 VRDS packageTA = 85°C
Figure 8-8 Efficiency versus Output Current
TPSM828301 TPSM828302 TPSM828303 Efficiency versus Output Current
VIN = 3.3 VRDS packageTA = 85°C
Figure 8-10 Efficiency versus Output Current
TPSM828301 TPSM828302 TPSM828303 Efficiency versus Output Current
VIN = 2.25VRDS packageTA = 85°C
Figure 8-12 Efficiency versus Output Current
TPSM828301 TPSM828302 TPSM828303 Output Voltage versus Output Current
VOUT = 0.5 VPFM
Figure 8-14 Output Voltage versus Output Current
TPSM828301 TPSM828302 TPSM828303 Output Voltage versus Output Current
VOUT = 0.9 VPFM
Figure 8-16 Output Voltage versus Output Current
TPSM828301 TPSM828302 TPSM828303 Output Voltage versus Output Current
VOUT = 1.2 VPFM
Figure 8-18 Output Voltage versus Output Current
TPSM828301 TPSM828302 TPSM828303 Output Voltage versus Output Current
VOUT = 1.8 VPFM
Figure 8-20 Output Voltage versus Output Current
TPSM828301 TPSM828302 TPSM828303 Output Voltage versus Output Current
VOUT = 2.5 VPFM
Figure 8-22 Output Voltage versus Output Current
TPSM828301 TPSM828302 TPSM828303 Output Voltage versus Output Current
VOUT = 3.3 VPFM
Figure 8-24 Output Voltage versus Output Current
TPSM828301 TPSM828302 TPSM828303 Switching Frequency versus Output Current
VOUT = 0.5 VPFM
Figure 8-26 Switching Frequency versus Output Current
TPSM828301 TPSM828302 TPSM828303 Switching Frequency versus Output Current
VOUT = 1.8 VPFM
Figure 8-28 Switching Frequency versus Output Current
TPSM828301 TPSM828302 TPSM828303 Switching Frequency versus Output Current
VOUT = 3.3 VPFM
Figure 8-30 Switching Frequency versus Output Current
TPSM828301 TPSM828302 TPSM828303 Thermal Derating (Safe Operating Area) RDS Package
VIN = 5.0 V TJmax = 125°C θJA= 49.8°C/W
Figure 8-32 Thermal Derating (Safe Operating Area) RDS Package
TPSM828301 TPSM828302 TPSM828303 Thermal Derating (Safe Operating Area) VCB Package
VIN = 5.0 V TJmax = 125°C θJA= 66.5°C/W
Figure 8-34 Thermal Derating (Safe Operating Area) VCB Package
TPSM828301 TPSM828302 TPSM828303 Output Voltage Ripple
IOUT = 100 mAPFM
Figure 8-36 Output Voltage Ripple
TPSM828301 TPSM828302 TPSM828303 Load Transient
IOUT = 1 mA to 2 APFMSlew rate = 1 A/μs
Figure 8-38 Load Transient
TPSM828301 TPSM828302 TPSM828303 Line Transient
VIN = 4.5 V to 5.5 VPFMIOUT = 100 mA
Figure 8-40 Line Transient
TPSM828301 TPSM828302 TPSM828303 Line Transient
VIN = 3.0 V to 3.6 VPFMIOUT = 100 mA
VOUT = 1.8 V
Figure 8-42 Line Transient
TPSM828301 TPSM828302 TPSM828303 Start-Up With Load
IOUT = 2 APFM or PWM
Figure 8-44 Start-Up With Load
TPSM828301 TPSM828302 TPSM828303 Disable, Active Output Discharge at No Load
IOUT = 0 mAPFM
Figure 8-46 Disable, Active Output Discharge at No Load
TPSM828301 TPSM828302 TPSM828303 HICCUP Short-Circuit Protection (Zoom In)
IOUT = 1.0 APFM or PWM
Figure 8-48 HICCUP Short-Circuit Protection (Zoom In)
TPSM828301 TPSM828302 TPSM828303 PG to VOUT Influence
IOUT = 0 A PG pin no capacitor PFM or PWM
Figure 8-50 PG to VOUT Influence
TPSM828301 TPSM828302 TPSM828303 PG to VOUT Influence
IOUT = 0 A PG pin 1nF, pull-up 100kΩ PFM or PWM
Figure 8-52 PG to VOUT Influence
TPSM828301 TPSM828302 TPSM828303 Efficiency versus Output Current
VIN = 5 VVCB package

TA = 25 °C

Figure 8-3 Efficiency versus Output Current
TPSM828301 TPSM828302 TPSM828303 Efficiency versus Output Current
VIN = 3.3 VVCB package

TA = 25 °C

Figure 8-5 Efficiency versus Output Current
TPSM828301 TPSM828302 TPSM828303 Efficiency versus Output Current
VIN = 2.25 V

VCB package

TA = 25 °C

Figure 8-7 Efficiency versus Output Current
TPSM828301 TPSM828302 TPSM828303 Efficiency versus Output Current
VIN = 5 V

VCB package

TA = 85°C
Figure 8-9 Efficiency versus Output Current
TPSM828301 TPSM828302 TPSM828303 Efficiency versus Output Current
VIN = 3.3 V

VCB package

TA = 85°C
Figure 8-11 Efficiency versus Output Current
TPSM828301 TPSM828302 TPSM828303 Efficiency versus Output Current
VIN =2.25 V

VCB package

TA = 85°C
Figure 8-13 Efficiency versus Output Current
TPSM828301 TPSM828302 TPSM828303 Output Voltage versus Output Current
VOUT = 0.5 VPWM
Figure 8-15 Output Voltage versus Output Current
TPSM828301 TPSM828302 TPSM828303 Output Voltage versus Output Current
VOUT = 0.9 VPWM
Figure 8-17 Output Voltage versus Output Current
TPSM828301 TPSM828302 TPSM828303 Output Voltage versus Output Current
VOUT = 1.2 VPWM
Figure 8-19 Output Voltage versus Output Current
TPSM828301 TPSM828302 TPSM828303 Output Voltage versus Output Current
VOUT = 1.8 VPWM
Figure 8-21 Output Voltage versus Output Current
TPSM828301 TPSM828302 TPSM828303 Output Voltage versus Output Current
VOUT = 2.5 VPWM
Figure 8-23 Output Voltage versus Output Current
TPSM828301 TPSM828302 TPSM828303 Output Voltage versus Output Current
VOUT = 3.3 VPWM
Figure 8-25 Output Voltage versus Output Current
TPSM828301 TPSM828302 TPSM828303 Switching Frequency versus Output Current
VOUT = 0.5 VPWM
Figure 8-27 Switching Frequency versus Output Current
TPSM828301 TPSM828302 TPSM828303 Switching Frequency versus Output Current
VOUT = 1.8 VPWM
Figure 8-29 Switching Frequency versus Output Current
TPSM828301 TPSM828302 TPSM828303 Switching Frequency versus Output Current
VOUT = 3.3 VPWM
Figure 8-31 Switching Frequency versus Output Current
TPSM828301 TPSM828302 TPSM828303 Thermal Derating (Safe Operating Area) RDS Package
VIN = 3.3 V TJmax = 125°C θJA = 49.8°C/W
Figure 8-33 Thermal Derating (Safe Operating Area) RDS Package
TPSM828301 TPSM828302 TPSM828303 Thermal Derating (Safe Operating Area) VCB Package
VIN = 3.3 V TJmax = 125°C θJA = 66.5°C/W
Figure 8-35 Thermal Derating (Safe Operating Area) VCB Package
TPSM828301 TPSM828302 TPSM828303 Output Voltage Ripple
IOUT = 2 APWM
Figure 8-37 Output Voltage Ripple
TPSM828301 TPSM828302 TPSM828303 Load Transient
IOUT = 0 mA to 1 APWMSlew rate = 1 A/μs
Figure 8-39 Load Transient
TPSM828301 TPSM828302 TPSM828303 Line Transient
VIN = 4.5 V to 5.5 VPFM or PWMIOUT = 2 A
Figure 8-41 Line Transient
TPSM828301 TPSM828302 TPSM828303 Line Transient
VIN = 3.0 V to 3.6 VPFM or PWMIOUT = 2 A
VOUT = 1.8 V
Figure 8-43 Line Transient
TPSM828301 TPSM828302 TPSM828303 Start-Up With No Load
IOUT = 0 mAPFM
Figure 8-45 Start-Up With No Load
TPSM828301 TPSM828302 TPSM828303 HICCUP Short-Circuit Protection
IOUT = 1 APFM or PWM
Figure 8-47 HICCUP Short-Circuit Protection
TPSM828301 TPSM828302 TPSM828303 HICCUP Short-Circuit Protection (Zoom In - Second Hiccup)
IOUT = 1.0 APFM or PWM
Figure 8-49 HICCUP Short-Circuit Protection (Zoom In - Second Hiccup)
TPSM828301 TPSM828302 TPSM828303 PG to VOUT Influence
IOUT = 0 A PG pin connected to GND PFM or PWM
Figure 8-51 PG to VOUT Influence