SLVS952G April   2010  – January 2017 TPS62671 , TPS62672 , TPS62674 , TPS62675 , TPS626751 , TPS626765 , TPS62679

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 Handling Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Thermal Information
    5. 8.5 Electrical Characteristics
    6. 8.6 Typical Characteristics
  9. 9 Parameter Measurement Information
  10. 10Detailed Description
    1. 10.1 Overview
    2. 10.2 Functional Block Diagram
    3. 10.3 Feature Description
      1. 10.3.1 Switching Frequency
      2. 10.3.2 Power Save Mode
      3. 10.3.3 Mode Selection
      4. 10.3.4 Spread Spectrum, PWM Frequency Dithering
      5. 10.3.5 Short-Circuit Protection
      6. 10.3.6 Thermal Shutdown
    4. 10.4 Device Functional Modes
      1. 10.4.1 Soft Start
      2. 10.4.2 Enable
      3. 10.4.3 Active Output Discharge
      4. 10.4.4 Undervoltage Lockout
  11. 11Application and Implementation
    1. 11.1 Application Information
    2. 11.2 Typical Applications
      1. 11.2.1 TPS6267x Point-Of-Load Supply
        1. 11.2.1.1 Design Requirements
        2. 11.2.1.2 Detailed Design Procedure
          1. 11.2.1.2.1 Inductor Selection
          2. 11.2.1.2.2 Output Capacitor Selection
          3. 11.2.1.2.3 Input Capacitor Selection
          4. 11.2.1.2.4 Checking Loop Stability
        3. 11.2.1.3 Application Curves
      2. 11.2.2 1.26V CMOS Sensor Embedded Power Solution — Featuring Sub 0.4mm Profile
        1. 11.2.2.1 Design Requirements
        2. 11.2.2.2 Detailed Design Procedure
        3. 11.2.2.3 Application Curves
  12. 12Power Supply Recommendations
  13. 13Layout
    1. 13.1 Layout Guidelines
    2. 13.2 Layout Example
  14. 14Device and Documentation Support
    1. 14.1 Device Support
      1. 14.1.1 Third-Party Products Disclaimer
    2. 14.2 Documentation Support
      1. 14.2.1 Related Documentation
        1. 14.2.1.1 References
    3. 14.3 Related Links
    4. 14.4 Trademarks
    5. 14.5 Electrostatic Discharge Caution
    6. 14.6 Glossary
  15. 15Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

1 Features

  • 92% Efficiency at 6MHz Operation
  • 17μA Quiescent Current
  • Wide VIN Range From 2.3V to 4.8V
  • 6MHz Regulated Frequency Operation
  • Spread Spectrum, PWM Frequency Dithering
  • Best in Class Load and Line Transient
  • ±2% Total DC Voltage Accuracy
  • Low Ripple Light-Load PFM Mode
  • ≥35dB VIN PSRR (1kHz to 10kHz)
  • Simple Logic Enable Inputs
  • Supports External Clock Presence Detect Enable Input
  • Three Surface-Mount External Components Required (One 0603 MLCC Inductor, Two 0402 Ceramic Capacitors)
  • Complete Sub 0.33-mm Component Profile Solution
  • Total Solution Size <10 mm2
  • Available in a 6-Pin NanoFree™ (CSP)
    Ultra-Thin Packaging, 0.4 mm Max. Height

2 Applications

  • Cell Phones, Smart-Phones
  • CMOS Camera Module, Optical Data Module
  • Digital TV, WLAN, GPS and Bluetooth™ Applications
  • Embedded Power Supply

3 Description

The TPS6267x devices are high-frequency synchronous step-down dc-dc converters optimized for small battery-powered applications. Intended for low-power applications, the TPS6267x supports up to 650-mA load current and allows the use of low cost chip inductor and capacitors.

With a wide input voltage range of 2.3V to 4.8V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 1.05V to 2.1V. The TPS6267x operates at a regulated 6-MHz switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range.

The PFM mode extends the battery life by reducing the quiescent current to 17μA (typ) during light load operation. For noise-sensitive applications, the device has PWM spread spectrum capability providing a lower noise regulated output, as well as low noise at the input. These features, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better power conversion efficiency.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS62671, TPS62672, TPS62674, TPS62675, TPS626751, TPS626765 DSBGA (6) 1.22mm x 0.85mm
TPS62679 PicoStar (6) 1.22mm x 0.85mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

4 Simplified Schematic

TPS62671 TPS62672 TPS62674 TPS62675 TPS626751 TPS626765 TPS62679 fxd3_lvs952.gif

Efficiency vs Output Current

TPS62671 TPS62672 TPS62674 TPS62675 TPS626751 TPS626765 TPS62679 eff1a_io_lvs952.gif
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