SLVSC58B June   2016  – March 2019 TPS63070

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Schematic
      2.      Efficiency vs Output Current; Vo = 5 V
  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 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram TPS63070
    3. 8.3 Functional Block Diagram TPS630701
    4. 8.4 Feature Description
      1. 8.4.1  Control Loop Description
      2. 8.4.2  Precise Enable
      3. 8.4.3  Power Good
      4. 8.4.4  Soft Start
      5. 8.4.5  PS/SYNC
      6. 8.4.6  Short Circuit Protection
      7. 8.4.7  VSEL and FB2 pins
      8. 8.4.8  Overvoltage Protection
      9. 8.4.9  Undervoltage Lockout
      10. 8.4.10 Overtemperature Protection
    5. 8.5 Device Functional Modes
      1. 8.5.1 Power Save Mode
      2. 8.5.2 Current Limit
      3. 8.5.3 Output Discharge Function (TPS630702 only)
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application for adjustable version
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Programming The Output Voltage
        2. 9.2.2.2 Inductor Selection
        3. 9.2.2.3 Capacitor Selection
          1. 9.2.2.3.1 Input Capacitor
          2. 9.2.2.3.2 Output Capacitor
      3. 9.2.3 Application Curves
    3. 9.3 Typical Application for Fixed Voltage Version
      1. 9.3.1 Design Requirements
      2. 9.3.2 Detailed Design Procedure
      3. 9.3.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Thermal Information
  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 Receiving Notification of Documentation Updates
    4. 12.4 Community Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

9.2.2.3.2 Output Capacitor

Same as the input, the output capacitor should be a combination of capacitors optimized for suppressing high frequency noise and a larger capacitor for low output voltage ripple and stable operation. The use of small X5R or X7R ceramic capacitors placed as close as possible to the VOUT and GND pins of the IC is recommended. A 0603 size capacitor close to the pins of the IC and as many 0805 capacitors as required to get the capacitance given the output voltage and dc bias effect of the ceramic capacitors is best. The recommended typical output capacitor values are outlined in Output Filter Selection. Please also see the Recommended Operating Conditions for the minimum and maximum capacitance at the output.

Larger capacitors will cause lower output voltage ripple as well as lower output voltage drop during load transients.

Table 6. Typical Capacitors

VALUE PART NUMBER COMPONENT SUPPLIER(1) COMMENT SIZE (LxWxH mm)
22 µF EMK212BBJ226MG-T Taiyo Yuden input capacitor for Vin ≤ 8 V 2 x 1.25 x 1.25
22 µF TMK316BBJ226ML Taiyo Yuden input capacitor 3.2 x 1.6 x 1.6
10 µF TMK107BBJ106MA-T Taiyo Yuden bypass capacitor directly at device pins on VIN to GND and VOUT to GND 1.6 x 0.8 x 0.8
10 µF GRM21BC71E106ME11 Murata small body size; 2 parts required if used at VIN > 6V 2 x 1.25 x 1.25
22 µF GRM21BC81C226ME44 Murata small body size; 3 parts required if used at Vo > 5V; otherwise 2 parts 2 x 1.25 x 1.25