SLUUCL6A december   2022  – may 2023 TPS562242

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Performance Specification Summary
  6. 3Output Voltage Setpoint
  7. 4Test Setup and Results
    1. 4.1 Input and Output Connections
    2. 4.2 Start-Up Procedure
    3. 4.3 Efficiency
    4. 4.4 Load Regulation
    5. 4.5 Line Regulation
    6. 4.6 Load Transient Response
    7. 4.7 Start-up
    8. 4.8 Shutdown
    9. 4.9 Output Voltage Ripple
  8. 5Board Layout
    1. 5.1 Layout
  9. 6Schematic, List of Materials, and Reference
    1. 6.1 Schematic
    2. 6.2 List of Materials
    3. 6.3 Reference
  10. 7Revision History

1 Introduction

The TPS562242 is a single, adaptive on-time, D-CAP3™ control mode, synchronous buck converter that requires a very low external component count. The D-CAP3 control mode is optimized for low-ESR output capacitors such as POSCAP, SP-CAP, or ceramic types, and features fast transient response with no external compensation. The switching frequency is internally set at a nominal 1.4 MHz and enters Eco-mode in light load conditions. The high-side and low-side switching MOSFETs are incorporated inside the TPS562242 package along with the gate-drive circuitry. The TPS562242 DC/DC synchronous converter is designed to support up to a 2-A continuous current from an input voltage source of 3 V to 17 V. The output voltage range is from 0.8 V to 10 V. Rated input voltage and output current ranges for the evaluation module are given in Table 1-1.

The TPS562242EVM evaluation module (EVM) is a single, synchronous buck converter providing 1.05 V at 2 A from 3-V to 17-V input. This user’s guide describes the TPS562242EVM performance.

Table 1-1 Input Voltage and Output Current Summary
EVMINPUT VOLTAGE (VIN) RANGEOUTPUT CURRENT (IOUT) RANGE
TPS562242EVMVIN = 3 V to 17 V0 A to 2 A