Low-Voltage MOSFET Family Tackles Telecom,Computing Apps

Jan. 20, 2003
Based on STripFET III technology, a new line of low-voltage MOSFETs is designed for use on motherboards and in telecom applications. The STripFET III process yields high cell density and channel perimeter. Parts built using this technology have a...

Based on STripFET III technology, a new line of low-voltage MOSFETs is designed for use on motherboards and in telecom applications. The STripFET III process yields high cell density and channel perimeter. Parts built using this technology have a very low on-resistance (RDS(ON)) for low conduction losses. The process also features a low figure of merit, which enhances switching behavior and optimizes the intrinsic body diode to cut power losses. The family offers low thresholds and a combination of RDS(ON) × QG. Some of the devices also feature low input capacitance. They're designed with special attention to the reverse recovery characteristic of the parasitic body diode, resulting in a QRR value that's 39% less than in previous generations of the MOSFET technology. A low intrinsic resistance (RG) of less than 1.9 Ω helps reduce gate-driving power losses. The MOSFET series includes the STB130NH02L, STD38NH02L, STD90-NH02L, STD100NH02L, and STS25NH3LL devices. The STB130NH02L N-channel MOSFET is used for synchronous rectification in telecom or computing dc-dc converters. Available in a TO-263 D2PAK surface-mount package, it offers a VDSS of 20 V, an RDS(ON) of 0.0034 Ω at 10 V, and a continuous drain current of 90 A. The STD38NH02L features an RDS(ON) of 0.011 Ω at 10 V and a continuous drain current of 38 A. This part comes in a DPAK package for use in high-efficiency dc-dc converter applications. With a VDSS of 20 V, the STD90NH02L also features an RDS(ON) of 0.0052 Ω at 10 V and a continuous drain current of 60 A. The part is available in a TO-252 DPAK surface-mount package. The STD100-NH02L is similar to the STD90NH02L but offers an RDS(ON) of 0.0038 Ω at 10 V and a continuous drain current of 60 A. The STS25NH3LL is a 30-V MOSFET with an RDS(ON) of 0.0027 Ω at 10 V and a continuous drain current of 25 A. Pricing ranges from $0.38 to $0.70 per unit in quantities of 50,000 units.

STMicroelectronics Inc. www.st.com/stripfet; (781) 861-2650

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