SLVSCQ7 April   2015 TPS61046

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 ESD 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 Under-Voltage Lockout
      2. 8.3.2 Enable and Disable
      3. 8.3.3 Soft Start
      4. 8.3.4 Over-voltage Protection
      5. 8.3.5 Output Short Circuit Protection
      6. 8.3.6 Thermal Shutdown
      7. 8.3.7 Device Functional Modes
        1. 8.3.7.1 PWM Mode
      8. 8.3.8 Power Save Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application - 12-V Output Boost Converter
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Programming the Output Voltage
        2. 9.2.2.2 Inductor Selection
        3. 9.2.2.3 Input and Output Capacitor Selection
      3. 9.2.3 Application Performance Curves
    3. 9.3 System Examples
      1. 9.3.1 Fixed 12-V Output Voltage with Three External Components
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    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 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Input Voltage Range: 1.8 V to 5.5 V, 1.6 V after Startup
  • Output Voltage Up to 28 V
  • Integrated Power Diode and Isolation Switch
  • 900-mA (typical) Switch Current
  • Up to 85% Efficiency at 3.6-V Input and 12-V Output
  • 500-nA Ultra-low Shutdown Current
  • ±2% Output Voltage Accuracy
  • Power Save Operation Mode at Light Load
  • Internal 10-ms Soft Start Time
  • True Disconnection between Input and Output during Shutdown
  • Output Short Circuit Protection
  • Output Over-Voltage Protection
  • Thermal Shutdown Protection
  • 0.80-mm × 1.20-mm WCSP package

2 Applications

  • PMOLED Power Supply
  • Wearable Devices
  • Portable Medical Equipment
  • Sensor Power Supply

3 Description

The TPS61046 is a highly integrated boost converter designed for applications requiring high voltage and tiny solution size such as PMOLED panel and sensor module. The TPS61046 integrates a 30-V power switch, input/output isolation switch, and power diode. It can output up to 28 V from input of a Li+ battery or two cell alkaline batteries in series.

The TPS61046 operates with a switching frequency at 1.0 MHz. This allows the use of small external components. The TPS61046 has an internal default 12-V output voltage setting by connecting the FB pin to the VIN pin. Thus it only needs three external components to get 12-V output voltage. Together with WCSP package, the TPS61046 gives a very small overall solution size. The TPS61046 has typical 900-mA switch current limit. It has 10-ms built-in soft start time to minimize the inrush current. When the TPS61046 is in shutdown mode, the isolation switch disconnects the output from input to minimize the leakage current. The TPS61064 also implements output short circuit protection, output over-voltage protection and thermal shutdown.

The TPS61046 is available in a 6-pin 0.80-mm x 1.20-mm WCSP package.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS61046 WCSP (6) 0.80 mm x 1.20 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

4 Simplified Schematic

TPS61046 sim_schem_slvscq7.gif