IR3891MTRPBF

Voltage Regulators - DC DC Switching Regulators Overview

The IR3891MTRPBF is a dual-output synchronous buck regulator from Infineon Technologies' SupIRBuck series. It integrates two independent channels, each delivering up to 4 A of output current. The device supports an input voltage range of 2.5 V to 16 V and provides adjustable output voltages between 0.6 V and 12 V. Operating with a fixed switching frequency of 300 kHz to 1.5 MHz, it utilizes a compact 38-lead PowerTDFN package. The component operates within a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates two independent synchronous buck regulators in a single compact package
• Features integrated power FETs for high efficiency and reduced external component count
• Supports flexible output configuration with adjustable voltage ranges

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for data processing systems
• Power distribution networks in telecommunications infrastructure
• Industrial equipment requiring multi-rail power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix and tape-and-reel specifications against the official datasheet before procurement. Confirm that the requested quantity aligns with standard manufacturing packaging requirements. Ensure compatibility with surface-mount assembly processes suitable for the PowerTDFN footprint. Check for any updated environmental compliance documentation required by your region.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a design requires two isolated low-current DC-DC rails from a single controller. It is suitable for applications where board space is limited but dual outputs are necessary. Consider thermal management requirements given the dense integration of two channels in one package. Verify that the input voltage profile remains within the specified 2.5 V to 16 V window.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the SupIRBuck family, which focuses on high-density power solutions. It serves as a dual-channel alternative to single-channel regulators like the IR3892, offering higher per-channel current capability compared to lower-end variants. It addresses the need for efficient power conversion in space-constrained digital systems.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers: None identified.