SLVSD05H March   2016  – June 2025 TPS56C215

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 Timing Requirements
    7. 5.7 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  Eco-mode Control
      3. 6.3.3  4.7-V LDO
      4. 6.3.4  MODE Selection
      5. 6.3.5  Soft Start and Prebiased Soft Start
      6. 6.3.6  Enable and Adjustable UVLO
      7. 6.3.7  Power Good
      8. 6.3.8  Overcurrent Protection and Undervoltage Protection
      9. 6.3.9  Transient Response Enhancement
      10. 6.3.10 UVLO Protection
      11. 6.3.11 Thermal Shutdown
      12. 6.3.12 Output Voltage Discharge
    4. 6.4 Device Functional Modes
      1. 6.4.1 Light Load Operation
      2. 6.4.2 Standby Operation
  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 Output Voltage Set Point
          2. 7.2.2.2.2 Switching Frequency and MODE Selection
          3. 7.2.2.2.3 Inductor Selection
          4. 7.2.2.2.4 Output Capacitor Selection
          5. 7.2.2.2.5 Input 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 Third-Party Products Disclaimer
      2. 8.1.2 Development Support
        1. 8.1.2.1 Custom Design With WEBENCH® Tools
    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. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information
    1. 10.1 Package Marking

Package Options

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

6.3.9 Transient Response Enhancement

The PSM deglitch feature activates whenever the device transitions from a heavy load in Continuous Conduction Mode (CCM) to a light load in Discontinuous Conduction Mode (DCM). During this transition, the system enters Forced Continuous Conduction Mode (FCCM) for 16 cycles before switching to DCM. This feature is designed to provide fast recovery in load transients during DCM operation.

Figure 6-4 shows 16-cycle and 32-cycle FCCM operation during load release and dynamic COMP pin positioning. Figure 6-5 shows steady-state Auto-skip mode operation with the dynamic COMP pin clamp.

TPS56C215 FCCM Transient ResponseFigure 6-4 FCCM Transient Response
TPS56C215 Auto-skip Mode Transient ResponseFigure 6-5 Auto-skip Mode Transient Response