SLUSDX1A September   2020  – August 2021 TPS563211

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 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 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 Advanced Emulated Current Mode Control
      2. 7.3.2 Mode Selection and PG/SS Pin Function Configuration
      3. 7.3.3 Power Good (PG)
      4. 7.3.4 Soft Start and Pre-Biased Soft Start
      5. 7.3.5 Output Discharge through PG/SS Pin
      6. 7.3.6 Precise Enable and Adjusting Undervoltage Lockout
      7. 7.3.7 Overcurrent Limit and Undervoltage Protection
      8. 7.3.8 Overvoltage Protection
      9. 7.3.9 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode
      2. 7.4.2 Active Mode
      3. 7.4.3 CCM Operation
      4. 7.4.4 FCCM Operation
      5. 7.4.5 DCM Operation and Eco-Mode Operation
      6. 7.4.6 On-Time Extension for Large Duty Cycle Operation
  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 Custom Design With WEBENCH® Tools
        2. 8.2.2.2 Output Voltage Resistors Selection
        3. 8.2.2.3 Output Inductor Selection
        4. 8.2.2.4 Output Capacitor Selection
        5. 8.2.2.5 Input Capacitor Selection
        6. 8.2.2.6 Bootstrap Capacitor Selection
        7. 8.2.2.7 Undervoltage Lockout Set Point
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
        1. 11.1.1.1 Custom Design With WEBENCH® Tools
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

8.2.3 Application Curves

VIN = 12 V, L1= 3.3 μH, COUT = 44 μF, TA = 25°C. (unless otherwise noted)

GUID-20200903-CA0I-H2DK-VWBJ-1VHDH3C2JFG9-low.gifFigure 8-2 Efficiency
GUID-20200903-CA0I-FCHT-FCTP-J3DG1NLD9QQX-low.gifFigure 8-4 Line Regulation
GUID-20200903-CA0I-TJDH-NHT8-LDK7TW0J2NQB-low.gifFigure 8-6 Steady State Waveforms, IOUT = 0 A
GUID-20200903-CA0I-WGNN-8GTD-QF9BXQQXC33R-low.gifFigure 8-8 Steady State Waveforms, IOUT = 1.5 A
GUID-20200903-CA0I-MJGR-RZSC-HD1KKBSP0ZH2-low.gifFigure 8-10 Transient Response 0 to 3 A with Slew Rate of 0.25 A/μs (Eco-Mode)
GUID-20200903-CA0I-DTND-MRBW-XTMNMGW5MVJS-low.gifFigure 8-12 Transient Response 0.03 to 3 A with Slew Rate of 0.25 A/μs (Eco-Mode)
GUID-20200903-CA0I-B9HC-TH1Q-KSZC8JJKSKHW-low.gifFigure 8-14 Transient Response 0.3 to 2.7 A with Slew Rate of 0.25 A/μs
GUID-20200903-CA0I-5HDW-HHBR-DQ66ZHLMR8TZ-low.gifFigure 8-16 Start-Up Relative to VIN
GUID-20200903-CA0I-4ZWP-WDFX-VB8ZJKJRWBTC-low.gifFigure 8-18 Enable Relative to EN
GUID-20200903-CA0I-MLP9-HD4S-MNXSKNCRGPMK-low.gifFigure 8-20 Output Short Protection
GUID-20200903-CA0I-Q6QS-X7WW-RXCQWZH96CHC-low.gifFigure 8-3 Load Regulation
GUID-20200903-CA0I-R8PJ-GVD2-9MP187ZXVD05-low.gifFigure 8-5 Case Temperature Rise vs Load Current
GUID-20200903-CA0I-KCJZ-4HGV-FSHF01PLCFXL-low.gifFigure 8-7 Steady State Waveforms, IOUT = 0.5 A
GUID-20200903-CA0I-X19C-C4DL-G1LPSDQXRXZS-low.gifFigure 8-9 Steady State Waveforms, IOUT = 3 A
GUID-20200911-CA0I-XT0D-FZZD-HZJTJRXK2SZM-low.gifFigure 8-11 Transient Response 0 to 3 A with Slew Rate of 0.25 A/μs (FCCM)
GUID-20200911-CA0I-B8F6-2BLC-20HKJNPHVM18-low.gifFigure 8-13 Transient Response 0.03 to 3 A with Slew Rate of 0.25 A/μs (FCCM)
GUID-20200903-CA0I-QB3B-BXMC-3KPFZBWG4F80-low.gifFigure 8-15 Transient Response 1.5 to 3 A with Slew Rate of 0.25 A/μs
GUID-20200903-CA0I-H3WD-BVZZ-DTJ1JXCQL3JD-low.gifFigure 8-17 Shutdown Relative to VIN
GUID-20200903-CA0I-STNB-R14F-L9TV4TBNWDLZ-low.gifFigure 8-19 Disable Relative to EN
GUID-20200903-CA0I-HKSK-JSSJ-NR0XFVVLRXMR-low.gifFigure 8-21 Output Short Recovery