Part Number Search

Cross Reference Search

About information presented in this cross reference

The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.

Keyword Search

Parametric Search

Stock Check & Purchase

First DC-DC Converter MOSFETs Using Toshiba Seventh Generation High Speed Process Achieve Lower Resistance And Gate Charge

February 22, 2010

UMOS VII-H MOSFETS for Synchronous DC-DC Conversion Achieve Higher Power Efficiency

TPCA8055-H and TPC8055-H

IRVINE, Calif., — Toshiba America Electronic Components, Inc. (TAEC)*, a committed leader that collaborates with technology companies to create breakthrough designs, has launched its latest generation of power MOSFETs for synchronous DC-DC conversion. The seventh generation trench process in the Toshiba fast switching series, UMOS VII-H, enables a significant reduction in gate switch charge and on-state resistance (RDS(ON)) resulting in greater power efficiency.

Developed by Toshiba Corp., the first two MOSFETs in the UMOS VII-H series, TPCA8055-H and TPC8055-H, 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.

In internal testing, the UMOS-VII TPCA8055-H achieved 13 percent1 lower RDS(ON) compared to our leading MOSFET from the previous UMOS VI-H generation. The new devices also feature fast switching, enabled through lower gate charge (QSW) and lower gate resistance (Rg).

The TPCA8055-H is offered in low-profile Toshiba SOP Advance surface mount packaging, which measures 5mm x 6mm x 0.95mm. The other device, TPC8055-H, is offered in industry standard SOP-8 packaging, which measures 5mm x 6mm x 1.6mm.

"These MOSFETs offer improved parameters compared to our previous generation devices, with high efficiency solutions for synchronous DC-DC conversion in a choice of packages," said Jeff Lo, business development manager, Discrete Power Devices, for TAEC.

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

Product Number



RDS(ON) (mΩ)  




















VDS=10V, VGS=0V, f=1MHz

VDD =24V, VGS=10V

TPC8055-H 30 ±20 2.2 1.8 2.7 2.2 340 6400 1.4 20 SOP-8
5mm x 6mm x 1.6mm
TPCA8055-H 30 ±20 2.0 1.6 2.5 2.0 340 6400 1.4 20 SOP Advance
5mm x 6mm x 0.95mm

Pricing and Availability

Samples of the TPCA8055-H and TPC8055-H are available now, with sample pricing starting at $0.75

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: "2008 Worldwide Semiconductor Market Share Report," Gartner, released April 2009). 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.

Toshiba America Electronic Components, Inc. is an independent operating company owned by Toshiba America, Inc., a subsidiary of Toshiba Corporation, Japan's largest semiconductor manufacturer and the world's third largest semiconductor manufacturer (Gartner, 2008 WW Semiconductor Revenue, April 2009). For additional company and product information, please visit

1Typical rating at 4.5V, comparing UMOS VI-H using TPCA8028-H and UMOS VII-H using TPCA8055-H

Information in this press release, including product pricing and specifications, content of services and contact information, is current and believed to be accurate on the date of the announcement, but is subject to change without prior notice. Technical and application information contained here is subject to the most recent applicable Toshiba product specifications. In developing designs, please ensure that Toshiba products are used within specified operating ranges as set forth in the most recent Toshiba product specifications and the information set forth in Toshiba’s "Handling Guide for Semiconductor Devices," or "Toshiba Semiconductor Reliability Handbook." This information is available at or from your TAEC representative.

POWR 10 598

A new window will open