SLVSCM8D May   2015  – August 2021 TPS61088

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 Enable and Start-up
      2. 7.3.2 Undervoltage Lockout (UVLO)
      3. 7.3.3 Adjustable Switching Frequency
      4. 7.3.4 Adjustable Peak Current Limit
      5. 7.3.5 Overvoltage Protection
      6. 7.3.6 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operation
        1. 7.4.1.1 PWM Mode
        2. 7.4.1.2 PFM Mode
  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 Switching Frequency
        3. 8.2.2.3 Setting Peak Current Limit
        4. 8.2.2.4 Setting Output Voltage
        5. 8.2.2.5 Inductor Selection
        6. 8.2.2.6 Input Capacitor Selection
        7. 8.2.2.7 Output Capacitor Selection
        8. 8.2.2.8 Loop Stability
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 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

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

8.1 Application Information

The TPS61088 is designed for outputting voltage up to 12.6 V with 10-A switch current capability to deliver more than 30-W power. The TPS61088 operates at a quasi-constant frequency pulse-width modulation (PWM) in moderate-to-heavy load condition. In light load condition, the converter can either operate in PFM mode or in forced PWM mode according to the mode selection. The PFM mode brings high efficiency over entire load range, but PWM mode can avoid the acoustic noise as the switching frequency is fixed. The converter uses the adaptive constant off-time peak current control scheme, which provides excellent transient line and load response with minimal output capacitance. The TPS61088 can work with different inductor and output capacitor combination by external loop compensation. It also supports adjustable switching frequency ranging from 200 kHz to 2.2 MHz.