SLVS871D February   2010  – June 2016 TPS62660 , TPS62665

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 Dissipation Ratings
    7. 6.7 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Switching Frequency
      2. 8.3.2 Mode Selection
      3. 8.3.3 Enable
      4. 8.3.4 Soft Start
      5. 8.3.5 Output Capacitor Discharge
      6. 8.3.6 Undervoltage Lockout
      7. 8.3.7 Short-Circuit Protection
      8. 8.3.8 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Power-Save Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Inductor Selection
        2. 9.2.2.2 Output Capacitor Selection
        3. 9.2.2.3 Input Capacitor Selection
        4. 9.2.2.4 Checking Loop Stability
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Considerations
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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订购信息

1 Features

  • 91% Efficiency at 6-MHz Operation
  • 31-μA Quiescent Current
  • Wide VIN Range from 2.3 V to 5.5 V
  • 6-MHz Regulated Frequency Operation
  • Best in Class Load and Line Transient
  • ±2% Total DC Voltage Accuracy
  • Automatic PFM or PWM Mode Switching
  • Low Ripple Light-Load PFM Mode
  • Fast Turnon Time: < 60-μs Start-Up Time
  • Integrated Active Power-Down Sequencing (Optional)
  • Current Overload and Thermal Shutdown Protection
  • Three Surface-Mount External Components Required (One MLCC Inductor, Two Ceramic Capacitors)
  • Complete Sub 1-mm Component Profile Solution
  • Total Solution Size <12 mm2
  • Available in a 6-Pin NanoFree™ (DSBGA)

2 Applications

  • Cell Phones and Smart Phones
  • PDAs and Pocket PCs
  • Portable Hard Disk Drives
  • DC-DC Micro Modules

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3 Description

The TPS6266x device is a high-frequency synchronous step-down DC-DC converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS6266x supports up to 1000-mA peak load current, and allows the use of low-cost chip inductor and capacitors.

With a wide input voltage range of 2.3 V to 5.5 V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 1.2 V to 2.3 V.

The TPS6266x 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 31 μA (typical) during light load and standby operation. For noise-sensitive applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high. In the shutdown mode, the current consumption is reduced to less than 1 μA.

The TPS6266x is available in an 6-pin chip scale package (DSBGA).

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS62660 DSBGA (6) 1.30 mm × 0.93 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Smallest Solution Size Application

TPS62660 TPS62665 fxd3_lvs871.gif

Efficiency vs Load Current

TPS62660 TPS62665 eff_io_p1_lvs871.gif