SLVS451G September   2003  – December 2014

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Typical Schematic
  5. 5 Revision History
  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 Parameter Measurement Information
  10. 10Detailed Description
    1. 10.1 Overview
    2. 10.2 Functional Block Diagram
    3. 10.3 Feature Description
      1. 10.3.1 Controller Circuit
      2. 10.3.2 Synchronous Rectifier
      3. 10.3.3 Down Regulation
      4. 10.3.4 Device Enable
      5. 10.3.5 Undervoltage Lockout
      6. 10.3.6 Softstart and Short Circuit Protection
      7. 10.3.7 Low Battery Detector Circuit—LBI/LBO
      8. 10.3.8 Low-EMI Switch
    4. 10.4 Device Functional Modes
      1. 10.4.1 Undervoltage Lockout
      2. 10.4.2 Power Save Mode
    5. 10.5 Programming
      1. 10.5.1 Programming the Output Voltage
      2. 10.5.2 Programming the LBI/LBO Threshold Voltage
  11. 11Application and Implementation
    1. 11.1 Application Information
    2. 11.2 Typical Application
      1. 11.2.1 Design Requirements
      2. 11.2.2 Detailed Design Procedure
        1. 11.2.2.1 Inductor Selection
        2. 11.2.2.2 Input Capacitor Selection
        3. 11.2.2.3 Output Capacitor Selection
      3. 11.2.3 Application Curves
    3. 11.3 System Examples
  12. 12Power Supply Recommendations
  13. 13Layout
    1. 13.1 Layout Guidelines
    2. 13.2 Layout Example
    3. 13.3 Thermal Considerations
  14. 14Device and Documentation Support
    1. 14.1 Device Support
      1. 14.1.1 Third-Party Products Disclaimer
    2. 14.2 Related Links
    3. 14.3 Trademarks
    4. 14.4 Electrostatic Discharge Caution
    5. 14.5 Glossary
  15. 15Mechanical, Packaging, and Orderable Information

6 Device Comparison Table

TA OUTPUT VOLTAGE DC-DC(1) NOMINAL SWITCH CURRENT LIMIT PART NUMBER(2)
–40°C to 85°C Adjustable 1500 mA TPS61020DRC
Adjustable 800 mA TPS61028DRC
Adjustable 1800 mA TPS61029DRC
3.0 V 1500 mA TPS61024DRC
3.3 V 1500 mA TPS61025DRC
5 V 1800 mA TPS61026DRC
5 V 1500 mA TPS61027DRC
(1) Contact the factory to check availability of other fixed output voltage versions.
(2) The DRC package is available taped and reeled. Add R suffix to device type (for example, TPS61020DRCR) to order quantities of 3000 devices per reel. Add a T suffix to the device type (that is, TPS61020DRCT) to order quantities of 250 devices per reel.