TPS51275B-1RUKR

Overview

The TPS51275B-1RUKR is a Texas Instruments PMIC featuring four outputs: two synchronous buck converters and two LDOs. It operates within an input voltage range of 5V to 24V. The switching frequencies are specified at 300kHz and 355kHz. The device provides a 3.3V output with 100mA current capability for one of the linear regulators. It functions reliably across a temperature range of -40°C to +85°C and utilizes a 20-WQFN (3x3) surface-mount package.

Feature Summary

• Integrates dual synchronous buck controllers and dual low-dropout regulators in a single component
• Utilizes D-CAP control architecture for stable operation without external compensation networks
• Supports wide input voltage ranges suitable for various bus architectures

Applications

• Multi-rail power distribution in industrial equipment
• Power management for embedded computing systems
• Telecommunications infrastructure boards

Procurement Notes

Verify the specific suffix 'B-1' against official datasheets to confirm internal configuration differences from standard variants. Ensure compatibility with RoHS3 standards and check Moisture Sensitivity Level requirements during storage and handling. Confirm package dimensions match the 20-WQFN specification before integration into PCB layouts.

Selection Notes

Select this component when a compact solution combining both switching and linear regulation is required. The integrated topology reduces bill-of-materials count compared to discrete solutions. Evaluate thermal performance within the WQFN package constraints and ensure the 300kHz/355kHz frequencies align with system noise immunity requirements.

Part Context

This part belongs to the TPS51275 family, which focuses on multi-output power management. The series is designed to replace multiple discrete components, offering space savings. The B-1 variant indicates specific internal configurations or material sets defined by Texas Instruments for this product line.

Replacement Considerations

TPS51275BRUKT

FAQ

What is the control architecture used by this IC?

The TPS51275B-1RUKR utilizes the D-CAP control architecture, which allows for stable operation without requiring external compensation components.

Does this device include both switching and linear regulators?

Yes, it integrates two synchronous buck converters and two low-dropout (LDO) regulators within a single package.