SLVSHP7 November   2025 TPS548A23

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1  D-CAP4 Control
      2. 6.3.2  Internal VCC LDO and Using External Bias On the VCC Pin
        1. 6.3.2.1 Powering the Device From a Single Bus
        2. 6.3.2.2 Powering the Device From a Split-Rail Configuration
      3. 6.3.3  Multifunction Configuration (CFG1-5) Pins
        1. 6.3.3.1 Multifunction Configuration (CFG1-2) Pins (Internal Feedback)
        2. 6.3.3.2 Multifunction Configuration (CFG1-2) Pins (External Feedback)
        3. 6.3.3.3 Multifunction Configuration (CFG3-5) Pins
      4. 6.3.4  Enable
      5. 6.3.5  Soft Start
      6. 6.3.6  Power Good
      7. 6.3.7  Overvoltage and Undervoltage Protection
      8. 6.3.8  Output Voltage Setting (External Feedback Configuration)
      9. 6.3.9  Remote Sense
      10. 6.3.10 Low-side MOSFET Zero-Crossing
      11. 6.3.11 Current Sense and Positive Overcurrent Protection
      12. 6.3.12 Low-side MOSFET Negative Current Limit
      13. 6.3.13 Output Voltage Discharge
      14. 6.3.14 UVLO Protection
      15. 6.3.15 Thermal Shutdown
    4. 6.4 Device Functional Modes
      1. 6.4.1 Auto-Skip (PFM) Eco-mode Light Load Operation
      2. 6.4.2 Forced Continuous-Conduction Mode
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Output Voltage Setting Point
        2. 7.2.2.2 Choose the Switching Frequency
        3. 7.2.2.3 Choose the Inductor
        4. 7.2.2.4 Choose the Output Capacitor
        5. 7.2.2.5 Choose the Input Capacitors (CIN)
        6. 7.2.2.6 VCC Bypass Capacitor
        7. 7.2.2.7 BOOT Capacitor
        8. 7.2.2.8 PG Pullup Resistor
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

7.2.3 Application Curves

TPS548A23 Efficiency - PFM Mode
L = 0.55μH VOUT = 3.3V COUT = 6x47μF
Figure 7-2 Efficiency - PFM Mode
TPS548A23 Load Regulation
L = 0.55μH VOUT = 3.3V COUT = 6x47μF
Figure 7-4 Load Regulation
TPS548A23 Load Transient
L = 0.55μH IOUT = 0A to 10A at 1A/μs COUT = 6x47μF
VOUT = 3.3V CH1 = 50mV/div
Figure 7-6 Load Transient
TPS548A23 Output Voltage Ripple – PFM Mode
L = 0.55μH IOUT = 10mA COUT = 6x47μF
VOUT = 3.3V
Figure 7-8 Output Voltage Ripple – PFM Mode
TPS548A23 Start-Up With EN
IOUT = 10A
Figure 7-10 Start-Up With EN
TPS548A23 Efficiency - FCCM Mode
L = 0.55μH VOUT = 3.3V COUT = 6x47μF
Figure 7-3 Efficiency - FCCM Mode
TPS548A23 Line Regulation
L = 0.55μH VOUT = 3.3V COUT = 6x47μF
Figure 7-5 Line Regulation
TPS548A23 Frequency Response
L = 0.55μH IOUT = 10A COUT = 6x47μF
VOUT = 3.3V
Figure 7-7 Frequency Response
TPS548A23 Output Voltage Ripple - FCCM Mode
L = 0.55μH IOUT = 12A COUT = 6x47μF
VOUT = 3.3V
Figure 7-9 Output Voltage Ripple - FCCM Mode
TPS548A23 Shutdown With EN
IOUT = 10A
Figure 7-11 Shutdown With EN