SLVSCN9B December   2014  – June 2020 TPS61175-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Schematic
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 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 Timing Requirements
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Switching Frequency
      2. 7.3.2 Soft Start
      3. 7.3.3 Overcurrent Protection
      4. 7.3.4 Enable and Thermal Shutdown
      5. 7.3.5 Under Voltage Lockout (UVLO)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Minimum ON Time and Pulse Skipping
  8. 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 Determining the Duty Cycle
        2. 8.2.2.2 Selecting the Inductor
        3. 8.2.2.3 Computing the Maximum Output Current
        4. 8.2.2.4 Setting Output Voltage
        5. 8.2.2.5 Setting the Switching Frequency
        6. 8.2.2.6 Setting the Soft Start Time
        7. 8.2.2.7 Selecting the Schottky Diode
        8. 8.2.2.8 Selecting the Input and Output Capacitors
        9. 8.2.2.9 Compensating the Small Signal Control Loop
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Thermal Considerations
  11. 11Device and Documentation Support
    1. 11.1 Trademarks
    2. 11.2 Electrostatic Discharge Caution
    3. 11.3 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

6.7 Typical Characteristics

TPS61175-Q1 eff_io_lvscn9.gif
VI = 5 V
Figure 1. Efficiency vs Output Current
TPS61175-Q1 v_ta_lvs892.gifFigure 3. Error Amplifier Transconductance vs Free-Air Temperature
TPS61175-Q1 cur2_ta_lvs892.gifFigure 5. Overcurrent Limit vs Free-Air Temperature
TPS61175-Q1 eff2_io_lvscn9.gif
VO = 24 V
Figure 2. Efficiency vs Output Current
TPS61175-Q1 cur_dcycle_lvs892.gifFigure 4. Overcurrent Limit vs Duty Cycle
TPS61175-Q1 v_ta_2_lvs892.gifFigure 6. FB Voltages Free-Air Temperature