SLUSFU4 September   2024 TPS51388

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  PWM Operation and D-CAP3™ Control Mode
      2. 6.3.2  VCC Switchover Function
      3. 6.3.3  Soft Start
      4. 6.3.4  Large Duty Operation
      5. 6.3.5  Power Good
      6. 6.3.6  Overcurrent Protection and Undervoltage Protection
      7. 6.3.7  Overvoltage Protection
      8. 6.3.8  UVLO Protection
      9. 6.3.9  Output Voltage Discharge
      10. 6.3.10 Thermal Shutdown
    4. 6.4 Device Functional Modes
      1. 6.4.1 Light Load Operation
      2. 6.4.2 Advanced Eco-mode Control
      3. 6.4.3 Out-of-Audio™ Mode
      4. 6.4.4 Mode Selection
      5. 6.4.5 Standby 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 Custom Design With WEBENCH® Tools
        2. 7.2.2.2 External Component Selection
          1. 7.2.2.2.1 VOUT and FB Pin Configuration
          2. 7.2.2.2.2 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. Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
        1. 8.1.1.1 Custom Design With WEBENCH® Tools
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. Revision History
  11. 10Mechanical, Packaging, and Orderable Information
    1. 10.1 Tape and Reel Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • VAB|13
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Typical Characteristics

TJ = –20°C to 125°C, VIN = 12V, unless otherwise noted.

TPS51388 Supply Current vs Junction
                        TemperatureFigure 5-1 Supply Current vs Junction Temperature
TPS51388 Enable On Voltage vs
                        Junction TemperatureFigure 5-3 Enable On Voltage vs Junction Temperature
TPS51388 High-Side RDS(on)
                         vs Junction TemperatureFigure 5-5 High-Side RDS(on) vs Junction Temperature
TPS51388 OVP Threshold vs Junction
                        TemperatureFigure 5-7 OVP Threshold vs Junction Temperature
TPS51388 
                        VFB Voltage vs Junction
                        TemperatureFigure 5-9 VFB Voltage vs Junction Temperature
TPS51388 Valley Current Limit vs
                        Junction TemperatureFigure 5-11 Valley Current Limit vs Junction Temperature
TPS51388 Soft-Start Time vs
                        Junction TemperatureFigure 5-13 Soft-Start Time vs Junction Temperature
TPS51388 Efficiency vs Load
                        Current, 600kHz, VOUT =
                        5.15VFigure 5-15 Efficiency vs Load Current, 600kHz, VOUT = 5.15V
TPS51388 Switching Frequency vs
                        Load Current, FSW = 600kHzFigure 5-17 Switching Frequency vs Load Current, FSW = 600kHz
TPS51388 Shutdown Current vs
                        Junction TemperatureFigure 5-2 Shutdown Current vs Junction Temperature
TPS51388 Enable Off Voltage vs
                        Junction TemperatureFigure 5-4 Enable Off Voltage vs Junction Temperature
TPS51388 Low-Side
                            RDS(on) vs Junction TemperatureFigure 5-6 Low-Side RDS(on) vs Junction Temperature
TPS51388 UVP Threshold vs Junction
                        TemperatureFigure 5-8 UVP Threshold vs Junction Temperature
TPS51388 Discharge Resistor vs
                        Junction TemperatureFigure 5-10 Discharge Resistor vs Junction Temperature
TPS51388 Negative Current Limit vs
                        Junction TemperatureFigure 5-12 Negative Current Limit vs Junction Temperature
TPS51388 OOA Period vs Junction
                        TemperatureFigure 5-14 OOA Period vs Junction Temperature
TPS51388 Efficiency vs Load
                        Current, 1MHz, VOUT = 5.15VFigure 5-16 Efficiency vs Load Current, 1MHz, VOUT = 5.15V
TPS51388 Switching Frequency vs
                        Load Current, FSW = 1MHzFigure 5-18 Switching Frequency vs Load Current, FSW = 1MHz