SLVS631C December   2005  – May 2015 TPS51117

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 Recommended Operating Conditions
    3. 6.3 Electrical Characteristics
    4. 6.4 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  PWM Frequency and Adaptive On-Time Control
      2. 7.3.2  Low-Side Driver
      3. 7.3.3  High-Side Driver
      4. 7.3.4  Soft-Start
      5. 7.3.5  Powergood
      6. 7.3.6  Output Discharge Control (Soft-Stop)
      7. 7.3.7  Overcurrent Limit
      8. 7.3.8  Negative Overcurrent Limit (PWM-Only Mode)
      9. 7.3.9  Overvoltage Protection
      10. 7.3.10 Undervoltage Protection
      11. 7.3.11 Start-Up Sequence
      12. 7.3.12 UVLO Protection
      13. 7.3.13 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 PWM Operation
      2. 7.4.2 Light-Load Condition With Auto-Skip Function
  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 D-CAP Mode Operation
      3. 8.2.3 Application Curves
    3. 8.3 System Examples
  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 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • RGY|14
  • PW|14
Thermal pad, mechanical data (Package|Pins)
Orderable Information

9 Power Supply Recommendations

The devices are designed to operate at 5 V (4.5 V to 5.5 V) supply from another regulator such as the Limit TPS51120 or TPS51020. The conversion input can be either VBAT or a 5-V rail, ranging from 1.8 V to 28 V. In order to reject high-frequency noise and also secure safe start-up of the internal reference circuit, apply 1 μF of MLCC closely at the V5FILT pin with a 300-Ω resistor to create a LPF between 5-V supply and the pin.