SLVS676D JUNE   2006  – July 2015 TPS62420 , TPS62421

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  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 Dissipation Ratings
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
      1. 8.1.1 Converter 1
      2. 8.1.2 Converter 2
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Dynamic Voltage Positioning
      2. 8.3.2 Undervoltage Lockout
      3. 8.3.3 Mode Selection
      4. 8.3.4 Enable
      5. 8.3.5 DEF_1 Pin Function
      6. 8.3.6 180° Out-of-Phase Operation
      7. 8.3.7 Thermal Shutdown
      8. 8.3.8 Short Circuit Protection
    4. 8.4 Device Functional Modes
      1. 8.4.1 Soft-Start
      2. 8.4.2 100% Duty Cycle Low Dropout Operation
      3. 8.4.3 Power-Save Mode
    5. 8.5 Programming
      1. 8.5.1 EasyScale™ Interface: One-Pin Serial Interface for Dynamic Output Voltage Adjustment
        1. 8.5.1.1 General
        2. 8.5.1.2 Protocol
        3. 8.5.1.3 Bit Decoding
        4. 8.5.1.4 Acknowledge
        5. 8.5.1.5 MODE Selection
    6. 8.6 Register Maps
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Output Voltage Setting
        1. 9.1.1.1 Converter 1 Adjustable Default Output Voltage Setting
        2. 9.1.1.2 Converter 2
    2. 9.2 Typical Applications
      1. 9.2.1 Typical Application Circuit 1.5-V and 2.85-V Adjustable Outputs
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Output Filter Design (Inductor and Output Capacitor)
            1. 9.2.1.2.1.1 Inductor Selection
            2. 9.2.1.2.1.2 Output Capacitor Selection
            3. 9.2.1.2.1.3 Input Capacitor Selection
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Typical Application Circuit TPS62421
  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 Related Links
    3. 12.3 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

5 Device Comparison Table

PART NUMBER DEFAULT
OUTPUT VOLTAGE(1)		 OUTPUT
CURRENT		 PACKAGE(2) ORDERING(3) PACKAGE
MARKING
TPS62420 OUT1 Adjustable 600 mA DRC TPS62420DRC BQF
OUT2 1000 mA
TPS62421 OUT1: DEF_1 = Low 1.2 V 600 mA TPS62421DRC QTQ
OUT1: DEF_1 = High 1.8 V
OUT2 1.8 V 1000 mA
(1) Contact TI for other fixed output voltage options.
(2) The DRC (VSON 10 PIN) package is available in tape on reel. Add R suffix to order quantities of 3000 parts per reel, T suffix for 250 parts per reel.
(3) For the most current ordering information see the Mechanical, Packaging, and Orderable Information section or see the TI website www.ti.com.