SLVSCI4B February   2014  – September 2014 TPS22961

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Simplified Schematic
  5. 5 Revision History
  6. 6 Terminal Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 Handling Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics, VBIAS = 5.0 V
    6. 7.6 Electrical Characteristics, VBIAS = 3.0 V
    7. 7.7 Switching Characteristics
    8. 7.8 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 On/off Control
      2. 8.3.2 Input Capacitor (CIN)
      3. 8.3.3 Output Capacitor (CL)
      4. 8.3.4 VIN and VBIAS Voltage Range
  9. 9 Applications and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Typical Application Powering a Downstream Module
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 VIN to VOUT Voltage Drop
          2. 9.2.1.2.2 Inrush Current
          3. 9.2.1.2.3 Thermal Considerations
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Typical Application Powering Rails Sensitive to Ringing and Overvoltage due to Fast Rise Time
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
          1. 9.2.2.2.1 Picking Proper Inductor and Capacitor to Meet Voltage Overshoot Requirements
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Trademarks
    2. 12.2 Electrostatic Discharge Caution
    3. 12.3 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DNY|8
Thermal pad, mechanical data (Package|Pins)
Orderable Information

10 Power Supply Recommendations

The device is designed to operate from a VBIAS range of 3 V to 5.5 V and VIN range of 0.8 V to 3.5 V. This supply must be well regulated and placed as close to the TPS22961 as possible. If the supply is located more than a few inches from the device terminals, additional bulk capacitance may be required in addition to the ceramic bypass capacitors. An electrolytic, tantalum, or ceramic capacitor of 10 µF may be sufficient.