SLUSEG9B July   2022  – July 2022 TPS62A01 , TPS62A01A , TPS62A02 , TPS62A02A

PRODUCTION DATA  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Device Comparison Table
  6. Pin Configuration and Functions
  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 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Power Save Mode
      2. 8.3.2 100% Duty Cycle Low Dropout Operation
      3. 8.3.3 Soft Start
      4. 8.3.4 Switch Current Limit and Short Circuit Protection (HICCUP)
      5. 8.3.5 Undervoltage Lockout
      6. 8.3.6 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Enable and Disable
      2. 8.4.2 Power Good
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Setting the Output Voltage
        2. 9.2.2.2 Output Filter Design
        3. 9.2.2.3 Input and Output Capacitor Selection
      3. 9.2.3 Application Curves
  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 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Support Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

Output Filter Design

The inductor and output capacitor together provide a low-pass filter. To simplify this process, Table 9-3 outlines possible inductor and capacitor value combinations. Checked cells represent combinations that are proven for stability by simulation and lab test. Further combinations should be checked for each individual application.

Table 9-3 Matrix of Output Capacitor and Inductor Combinations
VOUT [V] L [µH](1) COUT [µF](2)
4.7 10 22 2 × 22 100
0.6 ≤ VOUT < 1.2 1 ++(3)
1.2 ≤ VOUT < 1.8 1 ++(3) +
1.8 ≤ VOUT 1 +(4) ++(3) +
Inductor tolerance and current de-rating is anticipated. The effective inductance can vary by +20% and –30%.
Capacitance tolerance and bias voltage de-rating is anticipated. The effective capacitance can vary by +20% and –50%.
This LC combination is the standard value and recommended for most applications.
The minimum COUT of 10 µF does not support an additional feedforward capacitor.

A 0.47uH inductor may also be used with the same recommended output capacitors for the TPS62A02x. In case a lower output ripple is desired, higher output capacitance may help reduce the ripple.