TPS5450DDARG4

Voltage Regulators - DC DC Switching Regulators Overview

The TPS5450DDARG4 is a step-down DC/DC converter from Texas Instruments, part of the SWIFT family. It integrates a high-side N-channel MOSFET and operates with an input voltage range of 5.5 V to 36 V. The device delivers a maximum continuous output current of 5 A with a fixed switching frequency of 500 kHz. It features an adjustable output voltage range from 1.22 V to 31 V. The component utilizes an 8-pin SOIC PowerPAD package for thermal efficiency.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a low-resistance high-side N-channel MOSFET for high efficiency
• Features internal compensation to minimize external component count
• Includes undervoltage lockout and internally set slow-start circuitry
• Provides overcurrent limiting, overvoltage protection, and thermal shutdown

Voltage Regulators - DC DC Switching Regulators Applications

• High-density point-of-load regulators
• LCD display power supplies
• Plasma display power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the G4 suffix indicates lead-free composition and RoHS compliance per Texas Instruments standards. Confirm the specific package variant matches the required thermal pad dimensions. Ensure the ordering prefix aligns with the desired reel or cut-tape quantity specifications before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for designs requiring a wide input voltage range up to 36 V and high output current capability. The internal compensation simplifies layout compared to externally compensated alternatives. Consider the 500 kHz switching frequency when determining inductor and capacitor values for ripple reduction.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the TPS5450 series of buck converters. It shares architectural similarities with other SWIFT family members but is distinguished by its specific 5 A current rating and 36 V maximum input voltage limit. It serves as a robust solution for general-purpose power management in industrial and consumer electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The TPS5450DDAR is a compatible alternative within the same product line. Verify that the pinout and thermal characteristics remain identical to ensure direct board compatibility without redesigning the footprint or thermal vias.