IR3865MTRPBF

Voltage Regulators - DC DC Switching Regulators Overview

The IR3865MTRPBF is a synchronous buck switching regulator IC from Infineon Technologies, part of the SupIRBuck series. It delivers an adjustable output voltage ranging from 0.5V to 12V with a maximum continuous output current of 10A. The device operates within an input voltage range of 3V to 21V and supports switching frequencies up to 750kHz. It features a single positive output configuration and is housed in a compact 17-PowerVQFN (4x5mm) surface-mount package. The component is rated for junction temperatures between -40°C and 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side power MOSFETs with a control circuit for synchronous rectification
• Provides adjustable output voltage regulation via external resistor network
• Includes internal bias LDO for efficient gate drive operation

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load (POL) conversion for digital logic supplies
• Power delivery for embedded processors and FPGAs
• Industrial equipment DC-DC step-down stages

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm RoHS3 compliance and REACH status prior to integration. Check datasheet revisions for potential pinout or electrical specification updates. Ensure ESD handling protocols are followed during assembly due to moisture sensitivity level 2 classification.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 10A synchronous buck solution is required within a 3V to 21V input window. The 17-PowerVQFN package suits space-constrained designs. Verify thermal management requirements for the target operating temperature range. Consider switching frequency limitations if electromagnetic interference filtering is critical.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to Infineon's SupIRBuck family of integrated power modules. These devices combine controller logic with power switches to simplify design. The IR3865 variant specifically targets medium-current applications requiring high efficiency and compact footprint compared to discrete solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The manufacturer lists the IR3865MPBF as a related product variant. Verify pin compatibility and electrical specifications before substitution. No direct cross-brand equivalents are confirmed in public documentation.