SLUUCG8A June   2022  – August 2022 TPS51383

 

  1.   TPS51383 TPS51384 Evaluation Module User's Guide
  2.   Trademarks
  3. 1Introduction
  4. 2Performance Specification Summary
  5. 3External Components
  6. 4Test Setup and Results
    1. 4.1 Input and Output Connections
    2. 4.2 Start-Up Procedure
    3. 4.3 Start-Up
    4. 4.4 Shutdown
    5. 4.5 Output voltage ripple
  7. 5Board Layout
    1. 5.1 Layout
  8. 6Board Profile, Schematic, List of Materials, and Reference
    1. 6.1 Board Profile
    2. 6.2 Schematic
    3. 6.3 List of Materials
    4. 6.4 Reference
  9. 7Revision History

1 Introduction

The TPS51383 and TPS51384 are the single, D-CAP3™ mode, synchronous buck converters requiring a very low external component count. The TPS51383 provides a fixed 3.36-V 8-A maximum output along with a separate 3.3-V, 100-mA maximum LDO. The TPS51384 provides a fixed 1.82-V 8-A maximum output along with a separate 1.8-V, 100-mA maximum LDO. Both support switch-over functionality, specifically designed for a notebook power system. Their integrated low RDS(ON) power MOSFETs enable high efficiency and offer ease-of-use with a minimal external component count for space-constrained power systems. Features include the following:

  • Accurate reference voltage
  • Fast load transient response
  • Auto-skip mode operation for light load efficiency
  • OOA light load operation with > 25-kHz switching frequency
  • D-CAP3 control mode with good line, load regulation, and no requirement for external compensation

The TPS51383 and TPS51384 evaluation modules (EVM) are single, synchronous buck converter boards providing 3.36 V or 1.82 V at 8 A from a 4.5-V to 24-V input. This user’s guide describes the TPS51383 and TPS51384 EVM performance.

Table 1-1 Input Voltage and Output Current Summary
EVM Input Voltage (VIN) Range Output Current (IOUT) Range
TPS51383EVM, TPS51384EVM 4.5 V to 24 V 0 A to 8 A