SLPS574B February   2016  – April 2018 CSD87335Q3D

PRODUCTION DATA.  

  1. 1Features
  2. 2Applications
  3. 3Description
    1.     Top View
      1.      Device Images
  4. 4Revision History
  5. 5Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 Recommended Operating Conditions
    3. 5.3 Thermal Information
    4. 5.4 Power Block Performance
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Power Block Device Characteristics
    7. 5.7 Typical Power Block MOSFET Characteristics
  6. 6Applications and Implementation
    1. 6.1 Application Information
      1. 6.1.1 Equivalent System Performance
    2. 6.2 Power Loss Curves
    3. 6.3 Safe Operating Curves (SOA)
    4. 6.4 Normalized Curves
    5. 6.5 Calculating Power Loss and SOA
      1. 6.5.1 Design Example
      2. 6.5.2 Calculating Power Loss
      3. 6.5.3 Calculating SOA Adjustments
  7. 7Recommended PCB Design Overview
    1. 7.1 Electrical Performance
    2. 7.2 Thermal Performance
  8. 8Device and Documentation Support
    1. 8.1 Receiving Notification of Documentation Updates
    2. 8.2 Community Resources
    3. 8.3 Trademarks
    4. 8.4 Electrostatic Discharge Caution
    5. 8.5 Glossary
  9. 9Mechanical, Packaging, and Orderable Information
    1. 9.1 Q3D Package Dimensions
    2. 9.2 Land Pattern Recommendation
    3. 9.3 Stencil Recommendation
    4. 9.4 Q3D Tape and Reel Information
    5. 9.5 Pin Configuration

Package Options

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

6.5.2 Calculating Power Loss

  • Power loss at 15 A = 1.92 W (Figure 1)
  • Normalized power loss for input voltage ≈ 1.01 (Figure 6)
  • Normalized power loss for output voltage ≈ 1.01 (Figure 7)
  • Normalized power loss for switching frequency ≈ 1.08 (Figure 5)
  • Normalized power loss for output inductor ≈ 1.01 (Figure 8)
  • Final calculated power loss = 1.92 W × 1.01 × 1.01 × 1.08 × 1.01 ≈ 2.14 W