SLVSC10C October   2013  – April 2016 TPS65301-Q1

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 DC Characteristics
    6. 6.6 Typical Characteristics
      1. 6.6.1 5-V Linear Regulator (5 VO)
      2. 6.6.2 3.3-V Linear Regulator Controller (3.3 VO)
      3. 6.6.3 1.2-V Linear Regulator Controller (1.2 VO)
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Buck Converter
        1. 7.3.1.1  PWM Operation
        2. 7.3.1.2  Voltage-Mode Control Loop
        3. 7.3.1.3  Output Voltage 5.45 V (VREG)
        4. 7.3.1.4  Switching Frequency (RT/CLK)
        5. 7.3.1.5  Boost Capacitor (BOOT)
        6. 7.3.1.6  Soft Start (SS)
        7. 7.3.1.7  Power-On Delay (DELAY)
        8. 7.3.1.8  Reset (nRST)
        9. 7.3.1.9  Thermal Shutdown
        10. 7.3.1.10 Reset Function
      2. 7.3.2 Linear Regulators
        1. 7.3.2.1 Fixed Linear Regulator Output (5 V)
        2. 7.3.2.2 Fixed Linear Regulator Controller (3.3 V)
        3. 7.3.2.3 Fixed Linear Regulator Controller (1.2 V)
        4. 7.3.2.4 Protected Sensor Supply Output (5VS)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operational Mode
      2. 7.4.2 Buck Converter Modes of Operation
        1. 7.4.2.1 Modes of Operation
          1. 7.4.2.1.1 Continuous-Conduction Mode (CCM)
          2. 7.4.2.1.2 Discontinuous Mode (DCM)
        2. 7.4.2.2 Tracking Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Duty Cycle
        2. 8.2.2.2 Output Inductor Selection (L)
        3. 8.2.2.3 Output Capacitor Selection (CO)
        4. 8.2.2.4 External Schottky Diode (D) Power Dissipation
        5. 8.2.2.5 Input Capacitor (CI)
        6. 8.2.2.6 Loop Compensation
          1. 8.2.2.6.1 Loop-Control Frequency Compensation
            1. 8.2.2.6.1.1 Type III Compensation
            2. 8.2.2.6.1.2 PWM Modulator Gain K
            3. 8.2.2.6.1.3 Resistor Values
            4. 8.2.2.6.1.4 Gain of Amplifier
            5. 8.2.2.6.1.5 Poles and Zero Frequencies
        7. 8.2.2.7 Power Dissipation
          1. 8.2.2.7.1 Switch-Mode Power-Supply Losses
          2. 8.2.2.7.2 Linear Regulator (5V) and Sensor Supply (5VS)
          3. 8.2.2.7.3 Total Power Dissipation
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Inductor (L)
      2. 10.1.2 Input Filter Capacitors (CI)
      3. 10.1.3 Feedback
      4. 10.1.4 Traces and Ground Plane
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Community Resource
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

11 Device and Documentation Support

11.1 Documentation Support

11.1.1 Related Documentation

For related documentation see the following:

TPS65301EVM User’s Guide, SLVU929

11.2 Community Resource

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.

11.3 Trademarks

E2E is a trademark of Texas Instruments.

All other trademarks are the property of their respective owners.

11.4 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.

11.5 Glossary

SLYZ022 — TI Glossary.

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