IR3840AMTR1PBF

Voltage Regulators - DC DC Switching Regulators Overview

The IR3840AMTR1PBF is a synchronous buck switching regulator IC from Infineon Technologies, part of the SupIRBuck series. It delivers an adjustable output voltage ranging from 0.9V to 14.4V with a maximum continuous output current of 14A. The device operates with an input voltage range of 1.5V to 16V and supports a programmable switching frequency between 225kHz and 1MHz. It is housed in a 15-PowerVQFN package (5x6mm) and functions within a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side power MOSFETs for compact design
• Features programmable switching frequency for optimization
• Includes internal bias LDO for simplified operation

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for data processing systems
• Industrial equipment power distribution
• Telecommunications infrastructure power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm package marking and datasheet revision against official Infineon documentation. Check for moisture sensitivity handling requirements during storage and assembly. Ensure substitute components meet identical electrical specifications if original supply is unavailable.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single-phase solution requires up to 14A output current in a small footprint. Consider the 1.5V minimum input voltage constraint for battery or bus applications. Evaluate thermal performance based on the PQFN-EP-15 package capabilities. Verify that the required output voltage falls within the 0.9V to 14.4V adjustable range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the Infineon SupIRBuck family of highly integrated synchronous buck regulators. These devices combine controller logic, gate drivers, and power stages into a single package to reduce external component count. The IR3840 variant specifically targets higher current applications compared to lower-amperage siblings in the same series.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed direct substitutes are not available in the provided source material. Consult Infineon technical support for qualified alternatives.