SLVSHC9 January   2024 TPS56A37

PRODUCTION DATA  

  1.   1
  2. Features
  3. Applications
  4. Description
  5. Pin Configuration and Functions
  6. 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. Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1  The Adaptive On-Time Control and PWM Operation
      2. 6.3.2  Power Up Sequence
      3. 6.3.3  Eco-mode Control Scheme
      4. 6.3.4  Soft Start and Prebiased Soft Start
      5. 6.3.5  Enable and Adjusting Undervoltage Lockout
      6. 6.3.6  Output Overcurrent Limit and Undervoltage Protection
      7. 6.3.7  Overvoltage Protection
      8. 6.3.8  UVLO Protection
      9. 6.3.9  Thermal Shutdown
      10. 6.3.10 Output Voltage Discharge
      11. 6.3.11 Power Good
      12. 6.3.12 Large Duty Operation
    4. 6.4 Device Functional Modes
      1. 6.4.1 Standby Operation
      2. 6.4.2 Light Load Operation
  8. 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 Output Voltage Resistors Selection
        2. 7.2.2.2 Output Filter Selection
        3. 7.2.2.3 Input Capacitor Selection
        4. 7.2.2.4 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. Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

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

Typical Characteristics

VIN = 24V (unless otherwise noted).

GUID-FCA83B5B-FD6E-4B06-B58D-C908638DCF65-low.svgFigure 5-1 Quiescent Current vs Temperature
GUID-20240108-SS0I-BLMQ-XZK7-0ZNKHB0KXDNJ-low.svgFigure 5-3 High-Side RDS(on) vs Temperature
GUID-8C634966-CBAA-4285-916E-AE7F37E7816E-low.svgFigure 5-5 Feedback Voltage vs Temperature
GUID-0605C937-E7BB-463F-A616-03B2CDD8F316-low.svgFigure 5-7 EN Threshold vs Temperature
GUID-D96F88F4-E709-42C8-886B-960E9D431D48-low.svgFigure 5-9 High-side Peak Current Limit vs Temperature
GUID-20230523-SS0I-XT26-BS0B-Z34SNW12VJF9-low.svgFigure 5-11 Switching Frequency vs Output Current, Vout = 5V, Fsw = 500kHz
GUID-20230523-SS0I-5DLJ-VXWX-SW0XTHWLKWHV-low.svgFigure 5-13 Efficiency, Vout = 5V, Fsw = 500kHz
GUID-925FAEC2-A4C4-4740-9442-C8E752E87543-low.svgFigure 5-2 Shutdown Current vs Temperature
GUID-20240108-SS0I-J1MP-7J63-KNPTPLMRXSGR-low.svgFigure 5-4 Low-Side RDS(on) vs Temperature
GUID-478B1617-54F5-4444-A737-0A71F51B1450-low.svgFigure 5-6 VIN UVLO vs Temperature
GUID-20230523-SS0I-Q0D5-CCKT-ZWWZXNP3HKB4-low.svgFigure 5-8 Low-Side Valley Current Limit vs Temperature
GUID-20230523-SS0I-WQKV-2TJT-H2TZX850B6HN-low.svgFigure 5-10 Switching Frequency vs Input Voltage, Vout = 5V, Fsw = 500kHz
GUID-20240105-SS0I-XS3L-THNL-5RCL83QRGDQV-low.svgFigure 5-12 Efficiency, Vout = 3.3V, Fsw = 500kHz
GUID-20240105-SS0I-NVSV-KNDP-VN7J3M31JKQX-low.svgFigure 5-14 Efficiency, Vout = 12V, Fsw = 500kHz