SLVSFI4B December   2020  – October 2021 TPSM5601R5H , TPSM5601R5HE

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics (VIN = 12 V)
    7. 7.7 Typical Characteristics (VIN = 24 V)
    8. 7.8 Typical Characteristics (VIN = 48 V)
    9. 7.9 Typical Characteristics (VIN = 60 V)
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Adjustable Output Voltage (FB)
      2. 8.3.2 Minimum Input Capacitance
      3. 8.3.3 Minimum Output Capacitance
      4. 8.3.4 Precision Enable (EN), Undervoltage Lockout (UVLO), and Hysteresis (HYS)
      5. 8.3.5 Power Good (PGOOD)
      6. 8.3.6 Spread Spectrum Operation
      7. 8.3.7 Overcurrent Protection (OCP)
      8. 8.3.8 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Active Mode
      2. 8.4.2 Standby Mode
      3. 8.4.3 Shutdown Mode
  9. 9 Applications 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 Custom Design With WEBENCH® Tools
        2. 9.2.2.2 Output Voltage Setpoint
        3. 9.2.2.3 Input Capacitors
        4. 9.2.2.4 Output Capacitor Selection
        5. 9.2.2.5 Power Good Signal
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
      1. 11.2.1 Theta JA versus PCB Area
      2. 11.2.2 Package Specifications
      3. 11.2.3 EMI
        1. 11.2.3.1 EMI Plots
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
      2. 12.1.2 Development Support
        1. 12.1.2.1 Custom Design With WEBENCH® Tools
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Support Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

8.3.1 Adjustable Output Voltage (FB)

The TPSM5601R5Hx has an adjustable output voltage range of 1.0 V to 16 V. Setting the output voltage requires two resistors, RFBT and RFBB (see Figure 8-1). Connect RFBT between VOUT, at the regulation point, and the FB pin. Connect RFBB between the FB pin and AGND (pin 10). The recommended value of RFBT is 10 kΩ. The value for RFBB can be calculated using Equation 1.

Equation 1. GUID-04D03BE9-8A11-4E9C-A4EB-8BD22CCE790D-low.gif
GUID-32E2C91B-E429-406D-B525-7AA064618798-low.gifFigure 8-1 FB Resistor Divider
Table 8-1 Standard RFBB Values
VOUT (V)RFBB (kΩ) (1)VOUT (V)RFBB (kΩ) (1)
1.0open3.34.32
1.249.95.02.49
1.520.07.51.54
1.812.4101.10
2.010.0120.909
2.56.65150.715
3.04.99160.665
(1) RFBT = 10 kΩ

Selecting an RFBT value of 10 kΩ is recommended for most applications. A larger RFBT consumes less DC current, which is mandatory if light-load efficiency is critical. However, RFBT larger than 1 MΩ is not recommended as the feedback path becomes more susceptible to noise. High feedback resistance generally requires more careful layout of the feedback path. It is important to keep the feedback trace as short as possible while keeping the feedback trace away from the noisy area of the PCB. For more layout recommendations, see Section 11.