FDMS3668S is a dual N-channel MOSFET from Fairchild Semiconductor Corporation. It features low on-resistance and low voltage drop. It is suitable for applications such as computing, communications, general purpose point of load and notebook computers.
The FDMS3668S is a PowerTrench Power Stage device containing two specialized N-Channel MOSFETs (Q1 and Q2) in a dual PQFN package. The internal connection of the switch node facilitates easy placement and routing for synchronous buck converter applications, optimizing efficiency by reducing circuit inductance and switch node ringing.
The document provides comprehensive electrical characteristics, including maximum ratings, on/off characteristics, dynamic parameters, and switching specifications for both MOSFETs. It also includes typical performance curves such as normalized on-resistance versus temperature, gate charge characteristics, capacitance vs. drain-to-source voltage, and thermal response data.
| Continuous Drain Current (Package limited) | 30 A / 60 A |
|---|---|
| Operating and Storage Junction Temperature Range | -55 to +150 °C |
| Thermal Resistance, Junction to Ambient (Ta=25°C) | 57.14 °C/W / 50.16 °C/W |
| Thermal Resistance, Junction to Case | 29 °C/W / 28 °C/W |
The device operates and stores within a junction temperature range of -55 to +150 °C.