SNVSBC9B November   2019  – August 2020 TPSM53604

PRODUCTION DATA  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
    1.     Pin Functions
  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 (VIN = 5 V)
    7. 6.7 Typical Characteristics (VIN = 12 V)
    8. 6.8 Typical Characteristics (VIN = 24 V)
    9. 6.9 Typical Characteristics (VIN = 36 V)
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Adjusting the Output Voltage
      2. 7.3.2  Switching Frequency
      3. 7.3.3  Input Capacitors
      4. 7.3.4  Output Capacitors
      5. 7.3.5  Output On/Off Enable (EN)
      6. 7.3.6  Programmable Undervoltage Lockout (UVLO)
      7. 7.3.7  Power Good (PGOOD)
      8. 7.3.8  Light Load Operation
      9. 7.3.9  Voltage Dropout
      10. 7.3.10 Overcurrent Protection (OCP)
      11. 7.3.11 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Active Mode
      2. 7.4.2 Auto Mode
      3. 7.4.3 Shutdown Mode
  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 Output Voltage Setpoint
        3. 8.2.2.3 Input Capacitors
        4. 8.2.2.4 Output Capacitor Selection
      3. 8.2.3 Application Curves
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
    3. 10.3 Theta JA versus PCB Area
    4. 10.4 Package Specifications
    5. 10.5 EMI
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
      2. 11.1.2 Development Support
        1. 11.1.2.1 Custom Design With WEBENCH® Tools
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Support Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

Adjusting the Output Voltage

A resistor divider connected to the FB pin (pin 9) sets the output voltage of the TPSM53604. The output voltage adjustment range is from 1 V to 7 V. Figure 7-1 shows the feedback resistor connections for setting the output voltage. The recommended value of RFBT is 10 kΩ. Use Equation 1 to calculate the value for RFBB. Table 7-1 lists the standard resistor values for several output voltages. The minimum required output capacitance for each output voltage is also included in Table 7-1. The capacitance values listed represent the effective capacitance, taking into account the effects of DC bias and temperature variation.

Equation 1. GUID-32E2EDE1-7E0B-45BD-B4C4-17E7006E9A3A-low.gif
GUID-D06A38FB-DB14-4E58-AC52-1C0F26594B6C-low.gifFigure 7-1 Setting the Output Voltage
Table 7-1 Setting the Output Voltage
VOUT (V)RFBB (kΩ)(1)COUT(MIN) (µF)
(EFFECTIVE)
VOUT (V)RFBB (kΩ)(1)COUT(MIN) (µF)
(EFFECTIVE)
1.0open1503.04.9957
1.11001433.34.3252
1.249.91324.03.3243
1.333.21234.52.8739
1.424.91155.02.4935
1.520.01075.52.2132
1.812.4916.02.0030
2.010.0826.51.8228
2.56.65677.01.6526
RFBT = 10.0 kΩ