SLVSCF8 July   2014 TPS54060-EP

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Simplified Schematic
  5. 5 Revision History
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 Handling Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Fixed Frequency PWM Control
      2. 8.3.2  Slope Compensation Output Current
      3. 8.3.3  Low-Dropout Operation and Bootstrap Voltage (Boot)
      4. 8.3.4  Error Amplifier
      5. 8.3.5  Voltage Reference
      6. 8.3.6  Adjusting the Output Voltage
      7. 8.3.7  Enable and Adjusting UVLO
      8. 8.3.8  Slow Start/Tracking Pin (SS/TR)
      9. 8.3.9  Overload Recovery Circuit
      10. 8.3.10 Sequencing
      11. 8.3.11 Constant Switching Frequency and Timing Resistor (RT/CLK Pin)
      12. 8.3.12 Overcurrent Protection and Frequency Shift
      13. 8.3.13 Selecting the Switching Frequency
      14. 8.3.14 How to Interface to RT/CLK Pin
      15. 8.3.15 Power Good (PWRGD Pin)
      16. 8.3.16 Overvoltage Transient Protection (OVTP)
      17. 8.3.17 Thermal Shutdown
      18. 8.3.18 Small Signal Model for Loop Response
      19. 8.3.19 Simple Small Signal Model for Peak Current Mode Control
      20. 8.3.20 Small Signal Model for Frequency Compensation
    4. 8.4 Device Functional Modes
      1. 8.4.1 Pulse Skip Eco-Mode
      2. 8.4.2 DCM and Eco-Mode Boundary
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1  Selecting the Switching Frequency
        2. 9.2.2.2  Output Inductor Selection (LO)
        3. 9.2.2.3  Output Capacitor
        4. 9.2.2.4  Catch Diode
        5. 9.2.2.5  Input Capacitor
        6. 9.2.2.6  Slow Start Capacitor
        7. 9.2.2.7  Bootstrap Capacitor Selection
        8. 9.2.2.8  UVLO Set Point
        9. 9.2.2.9  Output Voltage and Feedback Resistors Selection
        10. 9.2.2.10 Compensation
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Power Dissipation Estimate
    2. 10.2 Power Supply Considerations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Estimated Circuit Area
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Trademarks
    3. 12.3 Electrostatic Discharge Caution
    4. 12.4 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • 3.5- to 60-V Input Voltage Range
  • 200-mΩ High-Side MOSFET
  • High Efficiency at Light Loads With a Pulse Skipping Eco-Mode™
  • 116-μA Operating Quiescent Current
  • 1.3-μA Shutdown Current
  • 100-kHz to 2.5-MHz Switching Frequency
  • Synchronizes to External Clock
  • Adjustable Slow Start/Sequencing
  • UV and OV Power Good Output
  • Adjustable UVLO Voltage and Hysteresis
  • 0.8-V Internal Voltage Reference
  • MSOP10 Package With PowerPAD™
  • Supported by SwitcherPro™ Software Tool
    (http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)
  • Supports Defense, Aerospace, and Medical Applications
    • Controlled Baseline
    • One Assembly and Test Site
    • One Fabrication Site
    • Available in Military (–55°C to 125°C) Temperature Range
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability

2 Applications

  • 12-V, 24-V, and 48-V Industrial and Commercial Low Power Systems
  • Aftermarket Auto Accessories: Video, GPS, Entertainment

3 Description

The TPS54060 device is a 60-V, 0.5-A, step-down regulator with an integrated high-side MOSFET. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse skip mode reduces the no load, regulated output supply current to 116 μA. Using the enable pin, shutdown supply current is reduced to
1.3 μA when the enable pin is low.

Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow start pin that can also be configured for sequencing/tracking. An open-drain power good signal indicates the output is within 93% to 107% of its nominal voltage.

A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition.

The TPS54060 is available in a 10-pin thermally-enhanced MSOP10 PowerPAD package.

Device Information(1)

ORDER NUMBER PACKAGE BODY SIZE (NOM)
TPS54060MDGQTEP HVSSOP (10) 3.00 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

4 Simplified Schematic

sim_sch_lvs919.gif

Efficiency vs Load Current

C033_SLVS919.gif