SLUSFR0A July   2024  – August 2024 TPS51375

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  PWM Operation and D-CAP3™ Control Mode
      2. 6.3.2  Remote Sense
      3. 6.3.3  Body Braking
      4. 6.3.4  5V LDO and BYP Function
      5. 6.3.5  Soft Start
      6. 6.3.6  Large Duty Operation
      7. 6.3.7  Power Good
      8. 6.3.8  Overcurrent Protection and Undervoltage Protection
      9. 6.3.9  Overvoltage Protection
      10. 6.3.10 UVLO Protection
      11. 6.3.11 Output Voltage Discharge
      12. 6.3.12 Standby Operation
      13. 6.3.13 Thermal Shutdown
    4. 6.4 Device Functional Modes
      1. 6.4.1 Advanced Eco-mode Control
  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 Custom Design With WEBENCH® Tools
        2. 7.2.2.2 External Component Selection
          1. 7.2.2.2.1 Remote Sense Amplifier and Adjusting the Output Voltage
          2. 7.2.2.2.2 Inductor Selection
          3. 7.2.2.2.3 Output Capacitor Selection
          4. 7.2.2.2.4 Input Capacitor Selection
          5. 7.2.2.2.5 Bootstrap Capacitor Selection
      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 Device Support
      1. 8.1.1 Development Support
        1. 8.1.1.1 Custom Design With WEBENCH® Tools
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information
    1. 10.1 Tape and Reel Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information
7.2.2.2.3 Output Capacitor Selection

After selecting the inductor, the output capacitor must be optimized. In D-CAP3 control mode, the regulator reacts within one cycle to the change in the duty cycle, so good transient performance can be achieved without needing large amounts of output capacitance. The recommended output capacitance range is given in Table 7-2 and Table 7-3. Ceramic capacitors have very low ESR making ESR ripple negligible, otherwise the maximum ESR of the capacitor must be less than VOUT(ripple)/IOUT(ripple).

Table 7-2 Recommended Component Values for VCCPRIM_VNNAON
VOUT (V) RLOWER (kΩ) RUPPER (kΩ) LOUT (µH) COUT(min) (µF) COUT(max) (µF) RFF (kΩ) CFF (pF)
0.77 21 5.9 0.15 500 1000 NA 220
Table 7-3 Recommended Component Values for General Purpose Application
VOUT (V)Fsw (kHz)LOUT (µH)COUT(min) (µF)COUT(max) (µF)RFF (kΩ)CFF (pF)
3.36001.588198NA30
5.06001.588198NA30