SLVSAZ9D June   2012  – February 2018 TPS81256

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application
      2.      Efficiency vs Load Current
  4. 4 Revision History
  5. 5 Device Options
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Operation
      2. 8.3.2 Power-Save Mode
      3. 8.3.3 Current Limit Operation, Maximum Output Current
    4. 8.4 Device Functional Modes
      1. 8.4.1 Softstart, Enable
      2. 8.4.2 Load Disconnect and Reverse Current Protection
      3. 8.4.3 Undervoltage Lockout
      4. 8.4.4 Thermal Regulation
      5. 8.4.5 Thermal Shutdown
  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 Output Capacitor Selection CEXT
        2. 9.2.2.2 Input Capacitor Selection
      3. 9.2.3 Application Curves
    3. 9.3 System Examples
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Surface Mount Information
    4. 11.4 Thermal and Reliability Information
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    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

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • SIP|9
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.6 Typical Characteristics

Table 1. Table of Graphs

FIGURE
η Efficiency vs Output current Figure 1, Figure 3
vs Input voltage Figure 2
VO DC output voltage vs Output current Figure 4, Figure 5, Figure 6
vs Input voltage Figure 7
IO Maximum output current vs Input voltage Figure 8
ΔVO Peak-to-peak output ripple voltage vs Output current Figure 8
ICC Supply current vs Input voltage Figure 10
ILIM Input current vs Output current Figure 11

Table 2. Table of Animated Performance Characteristics

VIDEO
AC Load Response vs. Input Voltage Video 1
Load Transient Response (10mA to 400mA) vs. Input Voltage Video 2
Load Transient Response (to 400mA) vs. Base Load Current (2.9VIN) Video 3
vs. Base Load Current (3.6VIN) Video 4
vs. Base Load Current (4.2VIN) Video 5
Start-Up Response vs. Delay to Load Current (2.9VIN) Video 6
vs. Delay to Load Current (3.6VIN) Video 7
vs. Delay to Load Current (4.2VIN) Video 8
Start-Up Response (200mA IOUT) vs. Input Voltage Video 9
Overload Response vs. Input Voltage Video 10
TPS81256 eff1_io_lvsaz9.gifFigure 1. Efficiency vs Output Current
TPS81256 eff2a_io_lvsaz9.gifFigure 3. Efficiency vs Output Current
TPS81256 vo2_io_lvsaz9.gifFigure 5. DC Output Voltage vs Output Current
TPS81256 vo_vi_lvsaz9.gifFigure 7. DC Output Voltage vs Input Voltage
TPS81256 vo_ripp_io_lvsaz9.gifFigure 9. Peak-To-Peak Output Ripple Voltage vs Output Current
TPS81256 iin_io_lvsaz9.gif
Figure 11. Input Current vs Output Current
TPS81256 eff_vi_lvsaz9.gifFigure 2. Efficiency vs Input Voltage
TPS81256 vo_io_lvsaz9.gifFigure 4. DC Output Voltage vs Output Current
TPS81256 vo3_io_lvsaz9.gifFigure 6. DC Output Voltage vs Output Current
TPS81256 io_vi_lvsaz9.gifFigure 8. Maximum Output Current vs Input Voltage
TPS81256 sup_vi_lvsaz9.gifFigure 10. Supply Current vs Input Voltage