TPS54357PWPR

Voltage Regulators - DC DC Switching Regulators Overview

The TPS54357PWPR is a synchronous step-down DC/DC converter from Texas Instruments, housed in a 16-pin HTSSOP package. It operates with an input voltage range of 4.5V to 20V and provides a fixed 5V output at up to 3A. The device integrates high-side and low-side N-channel power MOSFETs and includes a dedicated low-side gate driver for external FET applications. It features adjustable switching frequency, cycle-by-cycle current limiting, and thermal shutdown protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification with internal high-side and low-side MOSFETs
• Dedicated low-side gate driver capability for external FET expansion
• Fixed 5V output voltage option with 3A continuous load capability
• Built-in protection mechanisms including overcurrent and thermal shutdown

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial control systems
• Power supply stages for embedded computing modules
• Battery-powered equipment requiring efficient voltage conversion
• General-purpose 5V distribution networks in consumer electronics

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number TPS54357PWPR against official Texas Instruments documentation to ensure correct package type (HTSSOP) and temperature rating (-40°C to 85°C). Confirm that the fixed 5V output variant matches system requirements. Check for RoHS compliance markings if environmental standards are mandatory. Ensure sourcing channels provide genuine components with traceable manufacturing data.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required within a 4.5V to 20V input range. The integrated MOSFETs simplify design by reducing external component count. Consider the HTSSOP package for space-constrained layouts. Evaluate thermal performance under maximum load conditions, as the device supports 3A output. Verify compatibility with required switching frequencies and protection thresholds for the specific application environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the TPS5435x family of SWIFT™ converters, designed for high-efficiency power management. The PWPR suffix indicates a tape-and-reel packaging format suitable for automated assembly. It shares core architecture with other variants in the series but differs in output voltage configuration and packaging style. The device represents Texas Instruments' approach to compact, high-current buck conversion solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include TPS54357PWP (tray packaging) or TPS54357PWPRG4 (lead-free designation). Cross-reference electrical specifications carefully, particularly input voltage ranges and output current capabilities. Ensure pinout compatibility before substitution. Verify that alternative packages meet mechanical constraints of the existing PCB layout.