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IR3840MTR1PBF is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Infineon Technologies. Its product description is IC REG BUCK ADJ 12A PQFN. Review the specifications below when checking this part for your BOM.
The IR3840MTR1PBF 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 within an input voltage range of 1.5V to 16V and supports programmable switching frequencies between 225kHz and 1MHz. Housed in a compact 15-PowerVQFN package (5x6mm), it features integrated synchronous rectification for high efficiency. The component is rated for junction temperatures from -40°C to 125°C.
Verify component authenticity through authorized distribution channels due to end-of-life status. Confirm specific lot dates and moisture sensitivity level classifications prior to assembly. Ensure storage conditions comply with JESD-020 standards to prevent lead frame degradation. Cross-reference datasheet revisions to validate parameter consistency against original design specifications.
Evaluate thermal dissipation requirements based on the 14A output capacity and PQFN package characteristics. Compare switching frequency options against electromagnetic interference constraints and external component sizing needs. Assess input voltage stability within the 1.5V to 16V operational window. Consider alternative models if higher current ratings or different pin configurations are required for the target application.
This component belongs to the SupIRBuck family of highly integrated power stages designed for demanding computing applications. It consolidates control logic, drivers, and power MOSFETs into a single small footprint. The series targets high-density power designs where space constraints and thermal management are critical factors for system miniaturization.
Public confirmed substitute part numbers: IR3840AMTR1PBF, IR3840WMTR1PBF.
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