SLVSD82A April 2017  – April 2017 TLV61046A

PRODUCTION DATA. 

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1Absolute Maximum Ratings
    2. 6.2ESD Ratings
    3. 6.3Recommended Operating Conditions
    4. 6.4Thermal Information
    5. 6.5Electrical Characteristics
    6. 6.6Typical Characteristics
  7. Detailed Description
    1. 7.1Overview
    2. 7.2Functional Block Diagram
    3. 7.3Feature Description
      1. 7.3.1Under-Voltage Lockout
      2. 7.3.2Enable and Disable
      3. 7.3.3Soft Start
      4. 7.3.4Over-voltage Protection
      5. 7.3.5Output Short Circuit Protection
      6. 7.3.6Thermal Shutdown
    4. 7.4Device Functional Modes
      1. 7.4.1PWM Mode
      2. 7.4.2Power Save Mode
  8. Application and Implementation
    1. 8.1Application Information
    2. 8.2Typical Application - 12-V Output Boost Converter
      1. 8.2.1Design Requirements
      2. 8.2.2Detailed Design Procedure
        1. 8.2.2.1Programming the Output Voltage
        2. 8.2.2.2Inductor Selection
        3. 8.2.2.3Input and Output Capacitor Selection
      3. 8.2.3Application Performance Curves
    3. 8.3System Examples
      1. 8.3.1Fixed 12-V Output Voltage with Three External Components
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1Layout Guidelines
    2. 10.2Layout Example
  11. 11Device and Documentation Support
    1. 11.1Device Support
      1. 11.1.1Third-Party Products Disclaimer
    2. 11.2Receiving Notification of Documentation Updates
    3. 11.3Community Resources
    4. 11.4Trademarks
    5. 11.5Electrostatic Discharge Caution
    6. 11.6Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Features

  • Input Voltage Range: 1.8 V to 5.5 V, down to 1.6 V after Startup
  • Output Voltage Up to 28 V
  • Integrated Power Diode and Isolation Switch
  • 980-mA (typical) Switch Current
  • Up to 85% Efficiency at 3.6-V Input and 12-V Output
  • ±2.5% Output Voltage Accuracy
  • Power Save Operation Mode at Light Load
  • Internal 7-ms Soft Start Time
  • True Disconnection between Input and Output during Shutdown
  • Output Short Circuit Protection
  • Output Over-Voltage Protection
  • Thermal Shutdown Protection
  • 3-mm × 3-mm SOT23-6 Package

Applications

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

Description

The TLV61046A is a highly integrated boost converter designed for applications such as PMOLED panel, LCD bias supply and sensor module. The TLV61046A integrates a 30-V power switch, an input to output isolation switch, and a rectifier diode. It can output up to 28 V from input of a Li+ battery or two alkaline batteries in series.

The TLV61046A operates with a switching frequency at 1.0 MHz. This allows the use of small external components. The TLV61046A 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. The TLV61046A has typical 980-mA switch current limit. It has 7-ms built-in soft start time to reduce the inrush current. When the TLV61046A is in shutdown mode, the isolation switch disconnects the output from input to minimize the leakage current. The TLV61046A also implements output short circuit protection, output over-voltage protection and thermal shutdown.

The TLV61046A is available in a 6-pin 3-mm x 3-mm SOT23-6 package.

Device Information(1)

PART NUMBERPACKAGEBODY SIZE (NOM)
TLV61046ASOT23-6 (6)2.9 mm x 1.6 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

TLV61046A sim_schem_slvsd82.gif