SLVSIC3 March   2026 TLV61047-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Undervoltage Lockout
      2. 6.3.2 Enable and Disable
      3. 6.3.3 Soft Start
      4. 6.3.4 Thermal Shutdown
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Applications
      1. 7.2.1 12V Output Boost Converter
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
          1. 7.2.1.2.1 Programming the Output Voltage
          2. 7.2.1.2.2 Inductor Selection
          3. 7.2.1.2.3 Input and Output Capacitor Selection
          4. 7.2.1.2.4 Diode Rectifier Selection
        3. 7.2.1.3 Application Curves
      2. 7.2.2 28V Output Boost Converter
        1. 7.2.2.1 Design Requirements
        2. 7.2.2.2 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Third-Party Products Disclaimer
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

3 Description

The TLV61047-Q1 is a high-voltage, non-synchronous boost converter that integrates a 200mΩ low side power switch to provide an easy use and small size power design. The TLV61047-Q1 has a wide input voltage range from 1.8V to 20V and output voltage covers up to 28V with 2.2A switch current capability.

The TLV61047-Q1 uses adaptive constant off-time peak current control topology to regulate the output voltage. At heavy to light load condition, the TLV61047-Q1 works in pulse width modulation (PWM) mode until trigger the minimum peak current (typical 300mA). At lighter load condition , the devices work in pulse frequency modulation (PFM) mode to improve the efficiency and ripple performance.

The quasi-constant switching frequency is internally set to 2.4MHz, allowing the use of extremely small surface mount inductor and capacitors. The TLV61047-Q1 has built in 2.5ms soft start to minimize the inrush current during start-up. Additional features include internal compensation, cycle-by-cycle current limit, and thermal shutdown.

The TLV61047-Q1 is available in an SOT-23-5 DDC package.

Package Information
PART NUMBER PACKAGE(1) PACKAGE SIZE(2)
TLV61047-Q1 DDC (SOT-23-THN, 5) 2.9mm × 2.8mm
(1) For more information, see Section 10.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
TLV61047-Q1 Typical Application CircuitTypical Application Circuit