TPS5450DDAG4

Voltage Regulators - DC DC Switching Regulators Overview

The TPS5450DDAG4 is a Texas Instruments SWIFT step-down DC/DC converter housed in an 8-pin SOIC PowerPAD package. It features a wide input voltage range of 5.5V to 36V and delivers up to 5A of continuous output current. The adjustable output voltage spans from 1.22V to 31V with a fixed switching frequency of 500kHz. Integrated low-resistance high-side N-channel MOSFETs enable high efficiency, while internal compensation minimizes external component requirements.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated low-resistance high-side N-channel MOSFET for high efficiency
• Internal feedback loop compensation reduces external component count
• Input voltage feedforward improves line regulation and transient response
• Built-in slow start limits inrush current during startup

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 compliance per manufacturer specifications. Confirm the SOIC-8 PowerPAD thermal pad connection is properly implemented on the PCB layout. Ensure input capacitors are rated for the maximum operating voltage of 36V. Validate that the thermal design supports the specified junction temperature range under full load conditions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a wide input voltage range up to 36V and high output current capability. The internal compensation simplifies design complexity compared to non-compensated alternatives. Consider the thermal performance of the PowerPAD package for heat dissipation requirements in compact enclosures.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the TPS5450 family of SWIFT converters, designed for efficient power conversion in space-constrained environments. The DDAR variant typically denotes tape and reel packaging, while the DDA variant uses tube packaging. The G4 suffix specifically identifies the lead-free version of the standard TPS5450 device.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The TPS5450DDA serves as the standard non-lead-free equivalent. Verify pinout compatibility when substituting between different packaging variants within the same functional family.