IRF3546MTRPBF

FET, MOSFET Arrays Overview

The IRF3546MTRPBF is a dual integrated power block containing two pairs of high-performance control and synchronous N-channel MOSFETs in a single PQFN package. It supports an input voltage range of 4.5V to 21V with a drain-to-source breakdown voltage of 25V. The device delivers up to 30A per phase, achieving peak efficiency up to 94% at 1.2V output. Key electrical parameters include a maximum RDS(on) of 1.8mΩ for synchronous MOSFETs at 10V gate drive and 2.2mΩ at 4.5V. Gate resistance is ultra-low at 0.4Ω for synchronous and 0.6Ω for control MOSFETs.

FET, MOSFET Arrays Feature Summary

• Integrates two pairs of control and synchronous MOSFETs within a proprietary PQFN package to minimize parasitic inductance and simplify PCB layout.
• Features monolithic integrated Schottky diodes on synchronous MOSFETs to reduce dead-time and reverse recovery losses.
• Utilizes ultra-low gate resistance technology to minimize switching losses and optimize high-frequency performance.
• Supports efficient dual-side cooling for superior thermal management in high-density applications.

FET, MOSFET Arrays Applications

• High density two-phase synchronous buck converters
• Voltage regulators for CPUs, GPUs, and DDR memory arrays
• Server core power delivery systems

FET, MOSFET Arrays Procurement Notes

Verify the ordering suffix 'MTRPBF' corresponds to the Tape and Reel packaging format as specified in the official documentation. Confirm that the component meets RoHS compliance standards and MSL3 moisture sensitivity ratings required for surface mount assembly processes. Ensure compatibility with standard reflow temperature profiles up to 260°C during manufacturing integration.

FET, MOSFET Arrays Selection Notes

Select this component when designing high-current, low-profile DC-DC converters requiring integrated power stages. The dual-phase architecture reduces component count and board space compared to discrete solutions. Consider the 25V rating and 30A per phase capability against specific load requirements. Evaluate thermal performance needs based on the 18.4°C/W junction-to-ambient resistance in free air conditions.

FET, MOSFET Arrays Part Context

This part belongs to the IRF3546 family of dual integrated Power Blocks manufactured by Infineon Technologies (formerly International Rectifier). It is designed specifically for CPU core power delivery in 12V input applications. The device combines control and synchronous MOSFETs to enable miniaturization of output inductors and capacitors while maintaining industry-leading efficiency.

FET, MOSFET Arrays Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical specifications before considering any alternative components from other manufacturers.