SNVSCB1E December   2022  – September 2026 TPSM33615 , TPSM33625

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 System 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  Input Voltage Range
      2. 7.3.2  Output Voltage Selection
      3. 7.3.3  Input Capacitors
      4. 7.3.4  Output Capacitors
      5. 7.3.5  Enable, Start-Up, and Shutdown
      6. 7.3.6  External CLK SYNC (with MODE/SYNC)
        1. 7.3.6.1 Pulse-Dependent MODE/SYNC Pin Control
      7. 7.3.7  Switching Frequency (RT)
      8. 7.3.8  Power-Good Output Operation
      9. 7.3.9  Internal LDO, VCC and VOUT/FB Input
      10. 7.3.10 Bootstrap Voltage and VBOOT-UVLO (BOOT Terminal)
      11. 7.3.11 Spread Spectrum
      12. 7.3.12 Soft Start and Recovery from Dropout
        1. 7.3.12.1 Recovery From Dropout
      13. 7.3.13 Overcurrent Protection (Hiccup Mode)
      14. 7.3.14 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode
      2. 7.4.2 Standby Mode
      3. 7.4.3 Active Mode
        1. 7.4.3.1 CCM Mode
        2. 7.4.3.2 Auto Mode – Light-Load Operation
          1. 7.4.3.2.1 Diode Emulation
          2. 7.4.3.2.2 Frequency Reduction
        3. 7.4.3.3 FPWM Mode – Light-Load Operation
        4. 7.4.3.4 Minimum On-Time (High Input Voltage) Operation
        5. 7.4.3.5 Dropout
  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  Choosing the Switching Frequency
        3. 8.2.2.3  Setting the Output Voltage
        4. 8.2.2.4  Input Capacitor Selection
        5. 8.2.2.5  Output Capacitor Selection
        6. 8.2.2.6  VCC
        7. 8.2.2.7  CFF Selection
        8. 8.2.2.8  Power-Good Signal
        9. 8.2.2.9  Maximum Ambient Temperature
        10. 8.2.2.10 Other Connections
      3. 8.2.3 Application Curves
    3. 8.3 Best Design Practices
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
        1. 8.5.1.1 Ground and Thermal Considerations
      2. 8.5.2 Layout Example
  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
      3. 9.1.3 Device Nomenclature
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

8.2.3 Application Curves

TPSM33615 TPSM33625 12VIN Efficiency (Log)Figure 8-3 12VIN Efficiency (Log)
TPSM33615 TPSM33625 12VIN: Max Ambient Temperature vs Load Current (Analysis on TPSM33625EVM)Figure 8-5 12VIN: Max Ambient Temperature vs Load Current (Analysis on TPSM33625EVM)
TPSM33615 TPSM33625 24VIN Efficiency (Linear)Figure 8-7 24VIN Efficiency (Linear)
TPSM33615 TPSM33625 36VIN Efficiency (Log)Figure 8-9 36VIN Efficiency (Log)
TPSM33615 TPSM33625 36VIN: Maximum Ambient Temperature vs Load Current (Analysis on TPSM33625EVM)Figure 8-11 36VIN: Maximum Ambient Temperature vs Load Current (Analysis on TPSM33625EVM)
TPSM33615 TPSM33625 Load Transient
VIN = 24V VOUT = 5V 1MHz (FPWM)
1.25A to 2.5A,1A/µs

COUT = 2 × 22uF (1210,16VDC)
Figure 8-13 Load Transient
TPSM33615 TPSM33625 EVM Thermal Performance
VIN = 12VVOUT = 3.3V 2A, 1MHz
Figure 8-15 EVM Thermal Performance
TPSM33615 TPSM33625 EVM Thermal Performance
VIN = 24VVOUT = 3.3V 2A, 500kHz
Figure 8-17 EVM Thermal Performance
TPSM33615 TPSM33625 EVM Thermal Performance
VIN = 24VVOUT = 3.3V 2A, 2.2MHz
Figure 8-19 EVM Thermal Performance
TPSM33615 TPSM33625 CISPR 11 RE, 3-Meter, Scan 30MHz–1 GHz
VIN = 24V VOUT = 5V Fsw = 1MHz
Board = TPSM33625EVM (No Filter) Load = 2.5A
Figure 8-21 CISPR 11 RE, 3-Meter, Scan 30MHz–1 GHz
TPSM33615 TPSM33625 12VIN Efficiency (Linear)Figure 8-4 12VIN Efficiency (Linear)
TPSM33615 TPSM33625 24VIN Efficiency (Log)Figure 8-6 24VIN Efficiency (Log)
TPSM33615 TPSM33625 24VIN: Max Ambient Temperature vs Load Current (Analysis on TPSM33625EVM)Figure 8-8 24VIN: Max Ambient Temperature vs Load Current (Analysis on TPSM33625EVM)
TPSM33615 TPSM33625 36VIN Efficiency (Linear)Figure 8-10 36VIN Efficiency (Linear)
TPSM33615 TPSM33625 Load Transient
VIN = 24V VOUT = 5V 1MHz (FPWM)
0A to 2.5A,1A/µs COUT = 2 × 22uF (1210,16VDC)
Figure 8-12 Load Transient
TPSM33615 TPSM33625 EVM Thermal Performance
VIN = 12VVOUT = 3.3V 2A, 500kHz
Figure 8-14 EVM Thermal Performance
TPSM33615 TPSM33625 EVM Thermal Performance
VIN = 12VVOUT = 3.3V 2A, 2.2MHz
Figure 8-16 EVM Thermal Performance
TPSM33615 TPSM33625 EVM Thermal Performance
VIN = 24VVOUT = 3.3V 2A, 1MHz
Figure 8-18 EVM Thermal Performance
TPSM33615 TPSM33625 CISPR 11, Class B, CE Scan 150 kHz–30MHz
VIN = 24V VOUT = 5V Fsw = 1MHz
Board = TPSM33625EVM Load = 2.5A
Figure 8-20 CISPR 11, Class B, CE Scan 150 kHz–30MHz