SLVSEE7B June   2018  – January 2021 TPS61372

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Undervoltage Lockout
      2. 7.3.2 Enable and Disable
      3. 7.3.3 Error Amplifier
      4. 7.3.4 Bootstrap Voltage (BST)
      5. 7.3.5 Load Disconnect
      6. 7.3.6 Overvoltage Protection
      7. 7.3.7 Thermal Shutdown
      8. 7.3.8 Start-Up
      9. 7.3.9 Short Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operation
      2. 7.4.2 Auto PFM Mode
      3. 7.4.3 Forced PWM Mode
      4. 7.4.4 Mode Selectable
  8. 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 Custom Design With WEBENCH® Tools
        2. 8.2.2.2 Setting the Output Voltage
        3. 8.2.2.3 Selecting the Inductor
        4. 8.2.2.4 Selecting the Output Capacitors
        5. 8.2.2.5 Selecting the Input Capacitors
        6. 8.2.2.6 Loop Stability and Compensation
          1. 8.2.2.6.1 Small Signal Model
        7. 8.2.2.7 Loop Compensation Design Steps
        8. 8.2.2.8 Selecting the Bootstrap Capacitor
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
      1. 10.2.1 Thermal Considerations
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
      2. 11.1.2 Development Support
        1. 11.1.2.1 Custom Design With WEBENCH® Tools
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • YKB|16
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.2.2.5 Selecting the Input Capacitors

Multilayer ceramic capacitors are an excellent choice for the input decoupling of the step-up converter as they have extremely low ESR and are available in small footprints. Input capacitors should be located as close as possible to the device.

Take care when using only ceramic input capacitors. When a ceramic capacitor is used at the input and the power is being supplied through long wires, such as from a wall adapter, a load step at the output can induce ringing at the VIN pin. This ringing can couple to the output and be mistaken as loop instability or can even damage the part. Place additional "bulk" capacitance (electrolytic or tantalum) in this circumstance, between CIN and the power source lead, to reduce ringing that can occur between the inductance of the power source leads and CIN.