SLVSAI0J October   2010  – May 2016 TPS826716 , TPS826721

UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Simplified Schematic
  5. 5 Revision History
  6. 6 Device Comparison Table
  7. 7 Pin Configuration and Functions
  8. 8 Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Thermal Information
    5. 8.5 Electrical Characteristics
    6. 8.6 Typical Characteristics
  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 Spread Spectrum, PWM Frequency Dithering
    4. 9.4 Device Functional Modes
      1. 9.4.1 Enable
      2. 9.4.2 Soft Start
  10. 10Applications and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Input Capacitor Selection
        2. 10.2.2.2 Output Capacitor Selection
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
    3. 12.3 Surface Mount Information
  13. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 References
    2. 13.2 Related Links
    3. 13.3 Community Resources
    4. 13.4 Trademarks
    5. 13.5 Electrostatic Discharge Caution
    6. 13.6 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

7 Pin Configuration and Functions

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TPS82670 TPS82671 TPS82672 TPS82673 TPS82674 TPS82675 TPS82676 TPS82677 TPS826711 TPS826716 TPS826721 TPS826745 TPS826765 TPS8267195 pos_lvsa57.gif

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Pin Functions

PIN I/O DESCRIPTION
NAME NO.
VOUT A1 O Power output pin. Apply output load between this pin and GND.
VIN A2, A3 I The VIN pins supply current to the TPS8267x internal regulator.
EN B2 I This is the enable pin of the device. Connect this pin to ground to force the converter into shutdown mode. Pull this pin to VI to enable the device. This pin must not be left floating and must be terminated.
MODE B1 I This is the mode selection pin of the device. This pin must not be left floating and must be terminated.
MODE = LOW: The device is operating in regulated frequency pulse width modulation mode (PWM) at high-load currents and in pulse frequency modulation mode (PFM) at light load currents.
MODE = HIGH: Low-noise mode is enabled and regulated frequency PWM operation is forced.
GND C1, C2, C3 – Ground pin.