SLVS496D SEPTEMBER   2003  – August 2016 TPS65100 , TPS65101 , TPS65105


  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Device Options
  6. Pin Configuration and Functions
  7. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Dissipation Ratings
    7. 7.7 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Main Boost Converter
      2. 8.3.2  VCOM Buffer
      3. 8.3.3  Enable and Power-On Sequencing
      4. 8.3.4  Positive Charge Pump
      5. 8.3.5  Negative Charge Pump
      6. 8.3.6  Linear Regulator Controller
      7. 8.3.7  Soft Start
      8. 8.3.8  Fault Protection
      9. 8.3.9  Thermal Shutdown
      10. 8.3.10 Linear Regulator Controller
    4. 8.4 Device Functional Modes
      1. 8.4.1 Enable and Disable
      2. 8.4.2 Fault Mode
        1. Overvoltage Protection
        2. Short-Circuit Protection
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. Boost Converter Design Procedure
          1. Inductor Selection
          2. Output Capacitor Selection
          3. Input Capacitor Selection
          4. Rectifier Diode Selection
          5. Converter Loop Design and Stability
          6. Design Procedure Quick Steps
          7. Setting the Output Voltage and Selecting the Feedforward Capacitor
        2. Negative Charge Pump
        3. Positive Charge Pump
        4. VCOM Buffer
      3. 9.2.3 Application Curves
    3. 9.3 System Examples
      1. 9.3.1 Notebook Supply
      2. 9.3.2 Monitor Supply
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Performance
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Related Links
    4. 12.4 Receiving Notification of Documentation Updates
    5. 12.5 Community Resource
    6. 12.6 Trademarks
    7. 12.7 Electrostatic Discharge Caution
    8. 12.8 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • RGE|24
  • PWP|24
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • 2.7-V to 5.8-V Input Voltage Range
  • 1.6-MHz Fixed Switching Frequency
  • 3 Independent Adjustable Outputs
  • Boost Converter Output Voltage VO1 of up to 15 V With < 1% Output Voltage Accuracy
  • Negative Regulated Charge Pump VO2
  • Positive Charge Pump VO3
  • Integrated VCOM Buffer
  • Virtual Synchronous Converter Technology in Boost Converter
  • Auxiliary 3.3-V Linear Regulator Controller
  • Internal Soft Start
  • Internal Power-On Sequencing
  • Fault Detection of all Outputs (TPS65100/05)
  • No Fault Detection (TPS65101)
  • Thermal Shutdown
  • Available in TSSOP-24 and VQFN-24 PowerPAD™ Packages

2 Applications

  • TFT LCD Displays for Notebooks
  • TFT LCD Displays for Monitors
  • Portable DVD Players
  • Tablet PCs
  • Car Navigation Systems
  • Industrial Displays

Block Diagram

TPS65100 TPS65101 TPS65105 FBD_01_SLVS496.gif

3 Description

The TPS6510x series offers a compact and small power supply solution that provides all three voltages required by thin film transistor (TFT) LCD displays. The auxiliary linear regulator controller can be used to generate a 3.3-V logic power rail for systems powered by a 5-V supply rail only.

The main output VO1, is a 1.6-MHz, fixed-frequency PWM boost converter providing the source drive voltage for the LCD display. The device is available in two versions with different internal switch current limits to allow the use of a smaller external inductor when lower output power is required. The TPS65100/01 has a typical switch current limit of 2.3 A, and the TPS65105 has a typical switch current limit of 1.37 A. A fully integrated adjustable charge pump doubler/tripler provides the positive LCD gate drive voltage. An externally adjustable negative charge pump provides the negative gate drive voltage. Due to the high 1.6-MHz switching frequency of the charge pumps, inexpensive and small 220-nF capacitors can be used.

The TPS6510x series has an integrated VCOM buffer to power the LCD backplane. For LCD panels powered by 5 V only, the TPS6510x series has a linear regulator controller using an external transistor to provide a regulated 3.3-V output for the digital circuits. For maximum safety, the TPS65100/05 goes into shutdown as soon as one of the outputs is out of regulation. The device can be enabled again by toggling the input or the enable (EN) pin to GND. The TPS65101 does not enter shutdown when one of the outputs is below its power good threshold.

Device Information(1)

TPS6510x HTSSOP (24) 7.80 mm × 4.40 mm
VQFN (24) 4.00 mm × 4.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

4 Revision History

Changes from C Revision (April 2006) to D Revision

  • Added ESD Ratings table, Thermal Information table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section Go
  • Deleted Ordering Information table, see POA at the end of the datasheet. Go