SBVS121E August   2010  – May 2015 TPS7A49

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 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 Internal Current Limit
      2. 8.3.2 Programmable Soft-Start
      3. 8.3.3 Enable Pin Operation
      4. 8.3.4 Thermal Protection
    4. 8.4 Device Functional Modes
      1. 8.4.1 Normal Operation
      2. 8.4.2 Dropout Operation
      3. 8.4.3 Disabled
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1  Adjustable Operation
      2. 9.1.2  Capacitor Recommendations
      3. 9.1.3  Input and Output Capacitor Requirements
      4. 9.1.4  Noise-Reduction and Feed-Forward Capacitor Requirements
      5. 9.1.5  Maximum AC Performance
      6. 9.1.6  Output Noise
      7. 9.1.7  Post DC-DC Converter Filtering
      8. 9.1.8  Power-Supply Rejection
      9. 9.1.9  Transient Response
      10. 9.1.10 Audio Applications
      11. 9.1.11 Power for Precision Analog
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
    3. 9.3 Do's and Don’ts
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Board Layout Recommendations to Improve PSRR and Noise Performance
      2. 11.1.2 Power Dissipation
    2. 11.2 Layout Example
    3. 11.3 Package Mounting
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Development Support
        1. 12.1.1.1 Evaluation Modules
        2. 12.1.1.2 Spice Models
      2. 12.1.2 Device Nomenclature
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ

12 Device and Documentation Support

12.1 Device Support

12.1.1 Development Support

12.1.1.1 Evaluation Modules

An evaluation module (EVM) is available to assist in the initial circuit performance evaluation using the TPS7A49. The TPS7A30-49EVM-567 evaluation module (and related user's guide) can be requested at the Texas Instruments website through the product folder or purchased directly from the TI eStore.

12.1.1.2 Spice Models

Computer simulation of circuit performance using SPICE is often useful when analyzing the performance of analog circuits and systems. A SPICE model for the TPS7A49 is available through the product folder under Tools & Software.

12.1.2 Device Nomenclature

Table 2. Device Nomenclature(1)

PRODUCT VOUT
TPS7A49xxyyyz xx is the nominal output voltage. An 01 denotes an adjustable voltage version.
yyy is the package designator.
z is the package quantity. R is for reel (3000 pieces), T is for tape (250 pieces).
(1) For the most current package and ordering information see the Package Option Addendum at the end of this document, or visit the device product folder on www.ti.com.

12.2 Documentation Support

12.2.1 Related Documentation

  • Pros and Cons of Using a Feedforward Capacitor with a Low-Dropout Regulator, SBVA042
  • Using New Thermal Metrics, SBVA025
  • TPS7A30-49EVM-567 User's Guide, SLVU405

12.3 Community Resources

The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use.

    TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers.
    Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support.

12.4 Trademarks

PowerPAD, E2E are trademarks of Texas Instruments.

All other trademarks are the property of their respective owners.

12.5 Electrostatic Discharge Caution

esds-image

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

12.6 Glossary

SLYZ022 — TI Glossary.

This glossary lists and explains terms, acronyms, and definitions.