Fairchild FDB2572 FDP2572 User Manual
Summary
This N-Channel PowerTrench MOSFET is a high-performance switching component designed for robust power conversion applications. Essential for engineers building sophisticated systems such as DC/DC converters, Off-Line UPS units, and Distributed Vertical Regulator Modules (VRMs). The accompanying datasheet provides comprehensive technical specifications, including maximum ratings, detailed electrical characteristics, thermal performance data, and dynamic switching parameters. It is the ideal resource for designers implementing primary switches in demanding 24V to 48V power architectures requiring high efficiency and reliability.
Page 1 Text Content
January 2012
FDB2572 N-Channel Power Trench® MOSFET 150V, 29A, 54mΩ Features Applications r DS(ON) = 45mΩ (Typ.), VGS = 10V, ID = 9A DC/DC converters and Off-Line UPS Qg(tot) = 26n C (Typ.), VGS = 10V
Distributed Power Architectures and VRMs
Low Miller Charge
Primary Switch for 24V and 48V Systems
Low QRR Body Diode
High Voltage Synchronous Rectifier
UIS Capability (Single Pulse and Repetitive Pulse)
Formerly developmental type 82860
DRAIN (FLANGE)
SOURCE
TO-263AB FDB SERIES
MOSFET Maximum Ratings TC = 25°C unless otherwise noted Symbol Parameter Ratings Units VDSS Drain to Source Voltage
VGS Gate to Source Voltage ±20 Drain Current
AContinuous (TC = 25o C, VGS = 10V)
ID Continuous (TC = 100o C, VGS = 10V)
Continuous (Tamb = 25o C, VGS = 10V, RθJA = 43o C/W) Pulsed Figure 4 EAS Single Pulse Avalanche Energy (Note 1) m J Power dissipation
Derate above 25o C 0.9 W/o C
TJ, TSTG Operating and Storage Temperature -55 to 175
Thermal Characteristics
RθJC Thermal Resistance Junction to Case 1.11 , TO-263
RθJA , TO-263 (Note 2) 62Thermal Resistance Junction to Ambient
RθJA Thermal Resistance Junction to Ambient TO-263, 1in2 copper pad area
2012 Fairchild Semiconductor Corporation FDB2572 Rev. C
Page Summary Contents For Fairchild FDB2572 FDP2572 User Manual
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 11 |
| File Size | 362.69 KB |
| Published | June 16, 2026 |
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Frequently Asked Questions
What voltage range does the FDB2572 support between drain and source?
The device has a Drain to Source Voltage (VDSS) rating of 150V.
What is the continuous on-resistance for this MOSFET at room temperature?
At T=25°C, the continuous Drain-Source On Resistance (RDS(ON)) is between 0.050 and 0.075 Ω.
What are the permitted operating temperature ranges?
The device supports an operating and storage temperature range of -55 to 175°C.
Where can I buy genuine parts without risk of counterfeits?
Purchase directly from Fairchild or through Authorized Fairchild Distributors listed on their webpage.