SLVS273A February   2000  – November 2015 TPS60140 , TPS60141

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Device Comparison Table
  7. 7 Pin Configuration and Functions
  8. 8 Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Thermal Information
    5. 8.5 Electrical Characteristics
    6. 8.6 Typical Characteristics
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagrams
    3. 9.3 Feature Description
      1. 9.3.1 Undervoltage Lockout
      2. 9.3.2 Low-Battery Detector (TPS60140 Only)
      3. 9.3.3 Power-Good Detector (TPS60141)
    4. 9.4 Device Functional Modes
      1. 9.4.1 Start-Up Procedure and Shutdown
      2. 9.4.2 Short-Circuit Protection
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Capacitor Selection
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
    3. 12.3 Power Dissipation
  13. 13Device and Documentation Support
    1. 13.1 Device Support
      1. 13.1.1 Third-Party Products Disclaimer
    2. 13.2 Documentation Support
      1. 13.2.1 Related Documentation
    3. 13.3 Related Links
    4. 13.4 Trademarks
    5. 13.5 Electrostatic Discharge Caution
    6. 13.6 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Regulated 5 V ±4% Output Voltage
  • Up to 100-mA Output Current
  • 1.8-V to 3.6-V Input Voltage Range
  • 65-µA Quiescent Supply Current
  • 0.05-µA Shutdown Current, Battery Is Isolated From Load in Shutdown
  • Integrated Low-Battery or Power-Good Indicator
  • Low-Output Voltage Ripple Over Complete Output Current Range
  • Easy-to-Design With Low-EMI Power Supply Because No Inductors Are Required
  • Evaluation Module Available (TPS60140EVM-144)
  • Available in a 6.5-mm × 4.4-mm 20-Pin HTSSOP Package

2 Applications

  • Replacement of DC-DC Converters With Inductors in Battery-Powered Applications:
    • Two Battery Cells to 5-V Conversions
    • Portable Instruments
    • Miniature Equipment
    • Backup-Battery Boost Converters
    • Medical Instruments
    • 5-V Smart Card Supplies

3 Description

The TPS6014x step-up, regulated charge pumps generate a 5-V ±4% output voltage from a 1.8-V to 3.6-V input voltage range. The devices are typically powered by two alkaline, NiCd, or NiMH battery cells and provide an output current of minimum 100 mA from a 2-V input. Only four external capacitors are needed to build a complete voltage tripler charge pump.

The devices regulate the output by using the pulse-skip topology. The controller is optimized for lowest output voltage ripple over the complete output current range. The output peak current and therefore the output voltage ripple are drastically reduced compared to a conventional pulse-skip topology by regulating the charge pump output resistance. At light loads the maximum output resistance is limited to assure a low quiescent current.

The TPS60140 includes a low-battery comparator that issues a warning if the battery voltage drops below a user-adjustable threshold voltage. The TPS60141 features a power-good output that goes active when the output voltage reaches 90% of its nominal value.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS6014x HTSSOP (20) 6.50 mm × 4.40 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Typical Application Schematic

TPS60140 TPS60141 typ_operating_circuit_slvs273.gif

Efficiency vs Output Current

TPS60140 TPS60141 graph_01_slvs273.gif