SLVSCD3C december   2013  – may 2023 TPS65261 , TPS65261-1

PRODUCTION DATA  

  1.   1
  2. Features
  3. Applications
  4. Description
  5. Revision History
  6. Pin Configuration and Functions
  7. 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
  8. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Adjusting the Output Voltage
      2. 7.3.2  Power Failure Detector
      3. 7.3.3  Enable and Adjusting Undervoltage Lockout
      4. 7.3.4  Soft-Start Time
      5. 7.3.5  Power Up Sequencing
        1. 7.3.5.1 External Power Sequencing
        2. 7.3.5.2 Automatic Power Sequencing
      6. 7.3.6  V7V Low Dropout Regulator and Bootstrap
      7. 7.3.7  Out-of-Phase Operation
      8. 7.3.8  Output Overvoltage Protection (OVP)
      9. 7.3.9  Slope Compensation
      10. 7.3.10 Overcurrent Protection
        1. 7.3.10.1 High-side MOSFET Overcurrent Protection
        2. 7.3.10.2 Low-side MOSFET Overcurrent Protection
      11. 7.3.11 Power Good
      12. 7.3.12 Adjustable Switching Frequency
      13. 7.3.13 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Pulse Skipping MODE (PSM)
  9. 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 Output Inductor Selection
        2. 8.2.2.2 Output Capacitor Selection
        3. 8.2.2.3 Input Capacitor Selection
        4. 8.2.2.4 Loop Compensation
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Parts
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

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

Application Curves

GUID-D6A41119-9CBA-4315-AE7E-485872614592-low.pngFigure 8-3 BUCK1, Soft-Start with No Load
GUID-D60ECDFF-E80F-4BC6-8666-F3039A7FE16C-low.pngFigure 8-5 BUCK2, Soft-Start with No Load
GUID-DA50C150-1C21-49AE-B925-7B554F8AE55D-low.pngFigure 8-7 BUCK3, Soft-Start with No Load
GUID-9F3969BC-6570-48BA-8874-BE6B94363D9A-low.pngFigure 8-9 BUCK1, PSM Mode, Steady State Operation at Light Load
GUID-B6009A31-1CA4-4A36-B534-FD431DC613B0-low.gifFigure 8-11 BUCK2, PSM Mode, Steady State Operation at Light Load
GUID-2DB0C383-C258-4BA5-9C01-B18620B9F8E3-low.gifFigure 8-13 BUCK3, PSM Mode, Steady State Operation with Light Load
GUID-4DE0AEB9-41B7-491F-AE13-6751A69773EC-low.pngFigure 8-15 BUCK1, Load Transient, 0.75 A to 1.5 A SR = 0.25 A/µs
GUID-118D5941-54BA-462B-9101-CDFF40789E90-low.pngFigure 8-17 BUCK2, Load Transient, 0.5 A to 1.0 A SR = 0.25 A/µs
GUID-502B0678-F2A3-4753-989B-1271AD32337D-low.gifFigure 8-19 BUCK3, Load Transient, 0.5 A to 1.0 A SR = 0.25 A/µs
GUID-60F014CA-9A4E-40B1-A53D-6F17DE807ED2-low.pngFigure 8-21 BUCK1, Overcurrent Protection
GUID-389FF76C-E576-447F-9A23-5F4827FA4515-low.gifFigure 8-23 BUCK2, Overcurrent Protection
GUID-A5780309-55EF-4A4F-B9F2-905B0E40EBE8-low.pngFigure 8-25 BUCK3, Overcurrent Protection
GUID-E3FB9B00-45A8-4B88-BA65-73A74B375358-low.gifFigure 8-27 Automatic Power Sequencing, MODE=EN1=EN2=HIGH
GUID-39404387-FDED-4A80-B37E-84C9EB430DE1-low.gifFigure 8-29 Automatic Power Sequencing, MODE=EN1= HIGH, EN2=LOW
GUID-FA5EBD5D-13FA-4A97-80A2-313281E8E2A3-low.pngFigure 8-31 Automatic Power Sequencing, MODE=EN2=HIGH, EN1=LOW
GUID-F26AF7E5-4822-4D4B-9462-058F279C8226-low.pngFigure 8-33 Trigger Voltage 1.23V, Reset vs VDIV
GUID-DD68C413-820C-4B1F-958F-90366BACD75F-low.gif
VIN = 12 V VOUT1 = 1.2 V/1.5 A VOUT2 = 3.3 V/1 A
VOUT3 = 1.8 V/1 A
EVM Condition 4 Layers, 64 mm × 69 mm, TA = 27.2°C
Figure 8-35 Thermal Signature of TPS65261EVM
GUID-EBAF3DCC-AA9D-4181-B44C-9F4DA6711719-low.pngFigure 8-4 BUCK1, Soft-Start with Full Load
GUID-70A2806F-5EF5-49C3-9E8A-E4AE8F10F6ED-low.pngFigure 8-6 BUCK2, Soft-Start with Full Load
GUID-E3FAE839-BD7F-478F-A766-5F0FC28F99FF-low.pngFigure 8-8 BUCK3, Soft-Start with Full Load
GUID-B60BBAAE-3681-4445-8F55-563F32F0F127-low.pngFigure 8-10 BUCK1, Steady State Operation with Full Load
GUID-61DCA02D-7222-4C07-AB23-3AADBE77C395-low.pngFigure 8-12 BUCK2, Steady State Operation with Full Load
GUID-FEED4979-CF06-4B93-A39E-BAC3A66596FC-low.gifFigure 8-14 BUCK3, Steady State Operation with Full Load
GUID-AD80C31F-6C6A-4B80-A52D-EE99741F792B-low.pngFigure 8-16 BUCK1, Load Transient, 1.5 A to 2.25 A SR = 0.25 A/µs
GUID-C75FD149-1784-4100-848E-010D7A0037DB-low.pngFigure 8-18 BUCK2, Load Transient, 1.0 A to 1.5 A SR = 0.25 A/µs
GUID-8DF7BB9B-7867-448D-BDA8-BE17DFFFE8F3-low.pngFigure 8-20 BUCK3, Load Transient, 1.0 A to 1.5 A SR = 0.25 A/µs
GUID-FA934A18-48D7-4A51-A54D-AC8B6AF3B1C6-low.pngFigure 8-22 BUCK1, Hiccup and Recovery
GUID-AC24D2B7-DA53-48E9-A0A1-A5D6BE60CD4C-low.pngFigure 8-24 BUCK2, Hiccup and Recovery
GUID-1B7303F2-17E1-4F72-A510-167ABFF62A0C-low.pngFigure 8-26 BUCK3, Hiccup and Recovery
GUID-5E9269FD-6F7D-4E50-878C-FDF1347E21D7-low.pngFigure 8-28 Automatic Power Sequencing, MODE=EN1=EN2=HIGH
GUID-7764E64C-494D-45E5-9FAB-BC6F796FCB3F-low.pngFigure 8-30 Automatic Power Sequencing, MODE=EN1=HIGH, EN2=LOW
GUID-0B19D659-4D4E-4C26-A4AF-B8F62EC13322-low.gifFigure 8-32 Automatic Power Sequencing, MODE=EN2=HIGH, EN1=LOW
GUID-1CB9935F-2270-437F-8B3E-E766FF137712-low.pngFigure 8-34 Deglitch Time, Reset vs VDIV
GUID-6318BA97-690C-4BE2-8039-A6AD33DE68E7-low.gif
VIN = 12 V VOUT1 = 1.2 V/3 A VOUT2 = 3.3 V/2 A
VOUT3 = 1.8 V/2 A
EVM Condition 4 Layers, 64 mm × 69 mm, TA = 27.2°C
Figure 8-36 Thermal Signature of TPS65261EVM