Toshiba Expands MOSFET Lineup With DC-DC Converters Using Sixth Generation High Speed Process for Higher Power Efficiency

UMOS VI-H MOSFETS for Synchronous DC-DC Conversion Achieve Higher Power Efficiency Through Lower On-state Resistance and Reduced Gate Charge

IRVINE, Calif., Nov. 10 /PRNewswire/ -- Toshiba America Electronic Components, Inc. (TAEC)*, a committed leader that collaborates with technology companies to create breakthrough designs, has expanded its lineup of MOSFETs for synchronous DC-DC conversion to meet a broad range of load current requirements. The new devices utilize UMOS VI-H, the latest (sixth) generation trench process in the Toshiba fast switching series, which enables a significant reduction in gate switch charge and on-state resistance (R(DS(ON)), resulting in greater power efficiency.

Developed by Toshiba Corp., the new MOSFETs are intended for use in high efficiency DC-DC converter applications in mobile and desktop computers, servers, video game consoles, and other electronic devices, in which they convert input voltage to the level required for various subsystems such as the processor, memory and input-output devices. The six MOSFETs achieve lower (R(DS(ON)) than could be obtained by comparable Toshiba products manufactured with the previous generation process technology. They also feature fast switching, enabled through lower gate charge (Q(SW)) and lower gate resistance (R(g)). The new MOSFETs have Aluminum Strap (Al-Strap) connections instead of conventional wire bond technology to further reduce (R(DS(ON)).

Three of the devices, TPCA8036-H, TPCA8039-H and TPCA8040-H, are offered in low-profile Toshiba SOP Advance surface mount packaging, which measures 5mm x 6mm x 0.95mm. They feature a range of (R(DS(ON)), capacitance and gate charge values, shown in the table below, to meet various load current requirements.

Three similar devices with comparable electrical characteristics, the TPC8036-H, TPC8039-H and TPC8040-H, are offered in industry standard SOP-8 packaging, which measures 5mm x 6mm x 1.6mm.

"These MOSFETs offer high efficiency solutions for synchronous DC-DC conversion with a choice of parameters and packages to meet a diverse range of requirements," said Jeff Lo, business development manager, Discrete Power Devices, for TAEC.

    Technical Specifications for Toshiba UMOS VI-H Single N-Ch MOSFETs for DC-
DC Converters

    Product      V(DSS)  I(D)  R(DS(ON))   R(DS(ON))   R(DS(ON))   R(DS(ON))
    Number                     Typ.@V(GS)  Typ.@V(GS)  Max.@V(GS)  Max.@V(GS)
                               = 4.5V      = 10.0V     = 4.5V      = 10.0V
    TPCA8028-H*  30V     50A   2.3mohm     2.0mohm     3.2mohm     2.8mohm
    TPCA8036-H   30V     38A   3.4mohm     2.8mohm     4.8mohm     4.2mohm
    TPCA8039-H   30V     34A   4.6mohm     3.8mohm     6.6mohm     5.7mohm
    TPCA8040-H   30V     23A   7.4mohm     6.1mohm     10.8mohm    9.4mohm
    TPC8035-H    30V     18A   2.6mohm     2.3mohm     3.6mohm     3.2mohm
    TPC8036-H    30V     18A   3.7mohm     3.1mohm     5.1mohm     4.5mohm
    TPC8039-H    30V     17A   4.9mohm     4.1mohm     6.9mohm     6.0mohm
    TPC8040-H    30V     13A   7.7mohm     6.4mohm     11.1mohm    9.7mohm
    *Additional members of product family announced previously

    Technical Specifications for Toshiba UMOS VI-H Single N-Ch MOSFETs for DC-
DC Converters  (cont).

    Product     Crss        Ciss          R(g)       Package
    Number      V(DS)=10V,  V(DS)=10V,   (Typ.)
                V(GS)=0V,   V(GS)=0V,
                f=1MHz      f=1MHz
    TPCA8028-H  380(pF)     6000(pF)     1.0ohm      SOP Advance
                                                     (5mm x 6mm x 0.95mm)
    TPCA8036-H  230(pF)     3500(pF)     1.0ohm      SOP Advance
                                                     (5mm x 6mm x 0.95mm)
    TPCA8039-H  170(pF)     2600(pF)     1.0ohm      SOP Advance
                                                     (5mm x 6mm x 0.95mm)
    TPCA8040-H  110(pF)     1700(pF)     2.3ohm      SOP Advance
                                                     (5mm x 6mm x 0.95mm)
    TPC8035-H   380(pF)     6000(pF)     1.0ohm      SOP-8 (5mm x 6mm x 1.6mm)
    TPC8036-H   230(pF)     3500(pF)     1.0ohm      SOP-8 (5mm x 6mm x 1.6mm)
    TPC8039-H   170(pF)     2600(pF)     1.0ohm      SOP-8 (5mm x 6mm x 1.6mm)
    TPC8040-H   110(pF)     1700(pF)     2.3ohm      SOP-8 (5mm x 6mm x 1.6mm)

Pricing and Availability

Samples of the six additional Toshiba UMOS VI-H DC-DC converter MOSFETs are available now, with prices in sample quantities starting at $0.60.

Toshiba's Discrete Products

Since 1986, Toshiba Corp. has ranked as the top discrete supplier on a worldwide basis, based on annual revenue from international shipments of total discrete products. According to the most recent annual report from market research firm Gartner Dataquest (San Jose, CA), Toshiba remained the top discrete semiconductor supplier. (Source: "2007 Worldwide Semiconductor Market Share Report," Gartner, released April 2008). More specifically, Toshiba is a leading supplier in a number of discrete product categories, including power transistors, rectifiers and thyristors, LMOS logic, CMOS logic, photocouplers, TOSLINKs, LEDs, small signal diodes and transistors. The company's discrete devices are designed to meet the growing demand for high-performance and lower voltages in today's wireless telecommunications and consumer electronics applications, while emphasizing its strength in the automotive and industrial markets.

*About TAEC and Toshiba Corp.

Through proven commitment, lasting relationships and advanced, reliable electronic components, Toshiba enables its customers to create market-leading designs. Toshiba is the heartbeat within product breakthroughs from OEMs, ODMs, CMs, distributions and fabless chip companies worldwide. A committed electronic components leader, Toshiba designs and manufactures high-quality flash memory-based storage solutions, discrete devices, displays, advanced materials, medical tubes, custom SoCs/ASICs, digital multimedia and imaging products, microcontrollers and wireless components that make possible today's leading cell phones, MP3 players, cameras, medical devices, automotive electronics and more.

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