SLVSBF8C March   2013  – May 2015 TPS82692 , TPS82693 , TPS826951 , TPS82697 , TPS82698

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Schematic
      2.      Efficiency vs Output Current
  4. 4 Revision History
  5. 5 Device Comparison
  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 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Power-Save Mode
      2. 9.3.2 Mode Selection
      3. 9.3.3 Soft Start
    4. 9.4 Device Functional Modes
      1. 9.4.1 Low Dropout, 100% Duty Cycle Operation
      2. 9.4.2 Enable
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Input Capacitor Selection
      2. 10.2.2 Output Capacitor Selection
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
    3. 12.3 Surface Mount Information
    4. 12.4 Thermal And Reliability Information
    5. 12.5 Package Summary
      1.      SIP Package
    6. 12.6 MicroSIP
  13. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 Related Links
    3. 13.3 Trademarks
    4. 13.4 Electrostatic Discharge Caution
    5. 13.5 Glossary
  14. 14Mechanical, Packaging, and Orderable Information
    1. 14.1 Tape and Reel Information

Package Options

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

9.1 Overview

The TPS8269xSIP is a standalone synchronous step-down converter operating at a regulated 3-MHz frequency pulse width modulation (PWM) at moderate to heavy load currents (up to 500 mA / 800mA output current). At light load currents, the TPS8269xSIP's converter operates in power-save mode with pulse frequency modulation (PFM).

The converter uses a unique frequency locked ring oscillating modulator to achieve best-in-class load and line response. One key advantage of the non-linear architecture is that there is no traditional feedback loop. The loop response to change in VO is essentially instantaneous, which explains the transient response. Although this type of operation normally results in a switching frequency that varies with input voltage and load current, an internal frequency lock loop (FLL) holds the switching frequency constant over a large range of operating conditions.

Combined with best in class load and line transient response characteristics, the low quiescent current of the device (ca. 23μA) allows to maintain high efficiency at light load, while preserving fast transient response for applications requiring tight output regulation.

The TPS8269xSIP integrates an input current limit to protect the device against heavy load or short circuits and features an undervoltage lockout circuit to prevent the device from misoperation at low input voltages.