Fairchild FDN372S 30V N-Channel PowerTrench SyncFET User Manual
Summary
This 30V N-Channel SyncFET integrates a MOSFET and Schottky diode for high-efficiency synchronous DC-DC converters. Designed for low Rds(on) and fast switching, it replaces discrete components in power supplies and motor drives.
Page 1 Text Content
FD 372S September 2002
FDN372S 30V N-Channel Power Trench Sync FET™ General Description Features The FDN372S is designed to replace a single MOSFET
• 2.6 A, 30 V. RDS(ON) = 40 mΩ @ VGS = 10 V
and Schottky diode, used in synchronous DC-DC
RDS(ON) = 50 mΩ @ VGS = 4.5 V
power supplies, with a single integrated component. This 30V MOSFET is designed to maximize power conversion efficiency with low Rds(on) and low gate charge. The FDN372S includes an integrated Schottky • Low gate charge diode using Fairchild Semiconductor’s monolithic Sync FET process, making it ideal as the low side
• Fast switching speed
switch in a synchronous converter.
• High performance trench technology for extremely
Applications
low RDS(ON)
• DC-DC Converter • Motor Drives
Super SOT -3TM
Absolute Maximum Ratings TA=25o C unless otherwise noted Symbol Parameter Ratings Units VDSS Drain-Source Voltage 30 V VGSS Gate-Source Voltage ± 16 V ID Drain Current – Continuous (Note 1a) 2.6 A – Pulsed 10
Power Dissipation for Single Operation (Note 1a) 0.5 PD (Note 1b) 0.46
TJ, TSTG Operating and Storage Junction Temperature Range –55 to +150 °C
Thermal Characteristics RθJA Thermal Resistance, Junction-to-Ambient (Note 1a) 250 °C/W RθJC Thermal Resistance, Junction-to-Case (Note 1) 75 °C/W
Package Marking and Ordering Information Device Marking Device Reel Size Tape width Quantity 372 FDN372S 7’’ 8mm 3000 units
2002 Fairchild Semiconductor Corporation FDN372S Rev C(W)
Page Summary Contents For Fairchild FDN372S 30V N-Channel PowerTrench SyncFET User Manual
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 5 |
| File Size | 153.38 KB |
| Published | June 16, 2026 |
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Frequently Asked Questions
What is the FDN372S designed to replace in a power supply?
It replaces a single MOSFET and Schottky diode in synchronous DC-DC converters with a single integrated component.
What is the maximum continuous drain current?
The maximum continuous drain current is 2.6 A.
What is the thermal resistance from junction to ambient?
The thermal resistance from junction to ambient is 250°C/W when properly mounted.
What is the typical total gate charge?
The typical total gate charge is 5.8 nC under specified test conditions.