TPS628303BDRLR

Voltage Regulators - DC DC Switching Regulators Overview

The TPS628303BDRLR is a synchronous step-down DC/DC converter from Texas Instruments, featuring a 2.25 V to 5.5 V input voltage range and a 3 A output current capability. It utilizes a WQFN-HR-8 package for compact design. The device operates at a fixed switching frequency of 2 MHz, allowing for small external component sizes. Key electrical parameters include a quiescent current of 7 uA, an output voltage range of 500 mV to 4.5 V, and a load regulation of 0.15 %/A. It supports operation temperatures from -40°C to +125°C and includes shutdown functionality.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• High efficiency across full load ranges with automatic light-load power saving mode
• Compact solution enabled by high-frequency switching and integrated power switches
• Precise voltage regulation with 1% accuracy over line and load conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronics powered by single-cell lithium-ion batteries
• Industrial control systems requiring efficient voltage translation
• Embedded computing modules needing stable low-voltage rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific ordering suffix matches the required package variant and temperature grade. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure compatibility with existing PCB footprints for the WQFN-HR-8 package. Cross-reference datasheet revisions to confirm pinout consistency with previous designs.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when input voltages range between 2.25 V and 5.5 V and output currents up to 3 A are required. The fixed 2 MHz frequency suits applications prioritizing small passive component size. Consider the 7 uA quiescent current for battery-operated devices requiring extended standby life. Evaluate thermal performance in the WQFN-HR-8 package against expected ambient conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the TPS62830x family of synchronous buck converters designed for space-constrained applications. It shares architectural similarities with other members like the TPS628303KRZER but differs in packaging. The series emphasizes high efficiency and precise regulation within a minimal footprint, targeting modern portable and industrial electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The TPS628303KRZER serves as a direct functional substitute with identical electrical specifications but utilizes a WQFN-8 package instead of SOT-563. Verify PCB footprint compatibility before substitution. Other family members may offer different current ratings or input ranges.