SLUSFD4 August   2024 TPS62A03 , TPS62A03A

ADVANCE INFORMATION  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Power Save Mode
      2. 7.3.2 100% Duty Cycle Low Dropout Operation
      3. 7.3.3 Soft Start
      4. 7.3.4 Switch Current Limit and Short-Circuit Protection (HICCUP)
      5. 7.3.5 Undervoltage Lockout
      6. 7.3.6 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Enable and Disable
      2. 7.4.2 Power Good
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Setting the Output Voltage
        2. 8.2.2.2 Output Filter Design
        3. 8.2.2.3 Input and Output Capacitor Selection
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Third-Party Products Disclaimer
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Tape and Reel Information

8.2.1 Design Requirements

For this design example, use the parameters listed in Table 8-1 as the input parameters

Table 8-1 Design Parameters
Design ParameterExample Value
Input voltage2.5V to 5.5V
Output voltage1.8V
Maximum output current3.0A

Table 8-2 lists the components used for the example.

Table 8-2 List of Components
ReferenceDescriptionManufacturer(1)
C14.7µF, Ceramic Capacitor, 10V, X7R, size 0805, GRM21BR71A475KA73LMurata
C222µF, Ceramic Capacitor, 10V, X7R, size 0805, GRM21BZ71A226KE15LMurata
L11µH, Power Inductor, XGL3520-102MECCoilcraft
R1, R2Chip resistor, 1%, size 0603Std.
CFFOptional. If needed, then use up to 120pF, 10pF for 3.3V, 15pF for 1.8V, and 22pF for 1.2V VOUT. Make sure of a phase margin of > 45 degrees.Std.
(1) See the Third-Party Products Disclaimer.