SLVSA67F February   2010  – April 2020 TPS62400-Q1 , TPS62402-Q1 , TPS62404-Q1 , TPS62405-Q1

UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Schematic
      2.      TPS62402-Q1 Efficiency versus Output Current, VOUT1 and VOUT2
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin 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 Timing Requirements
    7. 7.7 Switching Characteristics
    8. 7.8 Typical Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
      1. 9.1.1 Converter 1
      2. 9.1.2 Converter 2
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Enable
      2. 9.3.2 DEF_1 Pin Function
      3. 9.3.3 180° Out-of-Phase Operation
      4. 9.3.4 Short-Circuit Protection
      5. 9.3.5 Thermal Shutdown
      6. 9.3.6 EasyScale Interface: One-Pin Serial Interface for Dynamic Output-Voltage Adjustment
        1. 9.3.6.1 General
        2. 9.3.6.2 Protocol
    4. 9.4 Device Functional Modes
      1. 9.4.1 Power-Save Mode
        1. 9.4.1.1 Dynamic Voltage Positioning
        2. 9.4.1.2 Soft Start
        3. 9.4.1.3 100% Duty-Cycle Low-Dropout Operation
        4. 9.4.1.4 Undervoltage Lockout
      2. 9.4.2 Mode Selection
    5. 9.5 Programming
      1. 9.5.1 Addressable Registers
        1. 9.5.1.1 Bit Decoding
        2. 9.5.1.2 Acknowledge
        3. 9.5.1.3 Mode Selection
  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 Output Voltage Setting
          1. 10.2.2.1.1 Converter 1 Adjustable Default Output-Voltage Setting: TPS62400-Q1
          2. 10.2.2.1.2 Converter 1 Fixed Default Output-Voltage Setting (TPS62402-Q1, TPS62404-Q1, and TPS62405-Q1)
          3. 10.2.2.1.3 Converter 2 Adjustable Default Output-Voltage Setting (TPS62400-Q1):
          4. 10.2.2.1.4 Converter 2 Fixed Default Output-Voltage Setting
        2. 10.2.2.2 Output Filter Design (Inductor and Output Capacitor)
          1. 10.2.2.2.1 Inductor Selection
          2. 10.2.2.2.2 Output-Capacitor Selection
          3. 10.2.2.2.3 Input Capacitor Selection
      3. 10.2.3 Application Curves
    3. 10.3 System Examples
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Device Support
      1. 13.1.1 Third-Party Products Disclaimer
    2. 13.2 Related Links
    3. 13.3 Support Resources
    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

4 Revision History

Changes from E Revision (June 2015) to F Revision

  • Changed TPS62404-Q1, OUT1 from DEF_1 = Low 1.575 V to DEF_1 = Low 1.2 VGo

Changes from D Revision (October 2014) to E Revision

  • Changed the Handling Ratings table to the ESD Ratings table and move storage temperature to the Absolute Maximum Ratings table Go
  • Changed test conditions and MIN, TYP, and MAX values for the TPS62405-Q1 oscillator frequency in the Switching Characteristics table Go

Changes from C Revision (October 2014) to D Revision

  • Changed oscillator specification from 1.6 MHz to 2 MHz minimum switching frequency and to 1.7 MHz for VIN≤ 3 VGo

Changes from B Revision (May 2013) to C Revision

  • Changed the data sheet to meet the new TI standard formatGo
  • Changed the VDEF_1H and VDEF_1L Test Conditions Go
  • Changed fSW 2.5 V ≤ VIN ≤ 6 V MIN value From: 2 MHz to 1.6 MHzGo
  • Added fSW with Test Conditions 3.25 V ≤ VIN ≤ 6 VGo

Changes from A Revision (March, 2013) to B Revision

  • Changed TPS62405-Q1, OUT1 from DEF_1 = High 1.9 V to DEF_1 = High 1.925 V and DEF_1 = Low 1.575 V to DEF_1 = Low 1.215 V. Changed OUT2 from Fixed default 5 V to Fixed default 3.35 V. Go
  • Added the part number to the Device column of Table 1Go
  • Added 1.215 (default TPS62405-Q1) in row 16, Table 4Go
  • Added part number to Table 4Go
  • Removed TPS62405-Q1 from Table 4.Go
  • Added 1.925 (default TPS62405-Q1) in row 31, Table 4. Go
  • Added part number to row 31, Table 4Go
  • Added part number to Converter 1 Fixed Default Output-Voltage Setting heading Go
  • Added voltage for TPS62402-Q1 to Converter 1 Fixed for DEF_1 = lowGo
  • Changed voltage from 1.2 V to 1.215 V for Pin DEF_1 = lowGo
  • Added part number TPS62405-Q1 for Pin DEF_1 = highGo
  • Added part number and voltage to Converter 2 Fixed Default Output-Voltage Setting sectionGo
  • Changed TPS62405-Q1, VOUT2 default = 5 V to 3.35 V.Go