FDMS3604S

FET, MOSFET Arrays Overview

The FDMS3604S is a dual N-Channel PowerTrench MOSFET from onsemi, housed in a Power-56-8 (PQFN) package. It integrates an asymmetric configuration with a control MOSFET (Q1) and a synchronous SyncFET (Q2), featuring an internally connected switch node for simplified PCB routing. Q1 offers a maximum Rds(on) of 8 mΩ at Vgs=10V/Id=13A and 11 mΩ at Vgs=4.5V/Id=11A. Q2 provides lower resistance with 2.6 mΩ at Vgs=10V/Id=23A and 3.5 mΩ at Vgs=4.5V/Id=21A. The device supports a Vds of 30V, operates between -55°C and +150°C, and utilizes low-inductance packaging to minimize switching losses.

FET, MOSFET Arrays Feature Summary

• Asymmetric dual N-Channel integration with internal switch node connection for optimized synchronous buck converter layouts
• Low inductance Power-56-8 packaging design that shortens rise and fall times to reduce switching losses
• Optimized control and sync FET characteristics to enhance overall power efficiency in point-of-load applications

FET, MOSFET Arrays Applications

• Notebook VCORE power stages
• General purpose point of load regulation
• Computing and communications systems

FET, MOSFET Arrays Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with onsemi or authorized distributors before finalizing designs. Confirm that the Power-56-8 package footprint matches your PCB layout requirements. Ensure thermal management strategies account for the specified power dissipation limits under actual operating conditions.

FET, MOSFET Arrays Selection Notes

Select this component when designing synchronous buck converters requiring integrated high-side and low-side drivers with minimized parasitic inductance. The asymmetric Rds(on) values suit applications where the synchronous rectifier carries higher current than the primary switch. Consider the 30V rating and 150°C junction temperature capability for robust operation in demanding environments.

FET, MOSFET Arrays Part Context

The FDMS3604S belongs to onsemi's PowerTrench Power Stage series, which focuses on integrating complementary MOSFETs to improve performance and reduce board space. This specific model addresses the need for efficient power conversion in portable and computing devices by combining optimized transistor characteristics within a single compact package.

FET, MOSFET Arrays Replacement Considerations

The FDMS3604AS is listed as a similar part number from Fairchild Semiconductor (now onsemi). Verify pinout compatibility and electrical parameter equivalence before substitution. Other members of the FDMS36xxS family may offer different current ratings or resistance values.