LDO Regulators are designed for portable electronic devices.

Press Release Summary:

Series TCR5SB CMOS low-dropout Regulators come with built-in control switch that features low-dropout voltage and low quiescent current. Products have output voltage range of 1.5-5.0 V by per 0.1 V step, maximum output current of 200 mA, and built-in overcurrent protection functionality. Available in 2.9 x 2.8 mm SMV (SOT23-5)(SC-74A) package, units are suited for cellular phones, notebook PCs, digital audio products, and similar devices.

Original Press Release:

Toshiba Announces New Family of CMOS Low-Dropout Regulators

IRVINE, Calif., May 21 - Toshiba America Electronic Components, Inc. (TAEC)* announces the creation of a new family of 200mA CMOS Low-Dropout Regulators (LDO). These new single-output regulators include a built-in control switch that features low-dropout voltage and low quiescent current. Developed by Toshiba Corp., the new TCR5SB series of CMOS LDO's has quiescent current that outperforms the existing Toshiba bipolar TAR5S series of regulators by 75 percent(1). These CMOS LDOs are designed for portable electronics, such as cellular phones, notebook PCs, digital audio products and similar devices, which require low noise and low power consumption.

Toshiba's new regulators feature output voltage range from 1.5V to 5.0V by per 0.1V step. Maximum output current is 200mA and over-current protection functionality is built in. Package sizes available include SMV (SOT23-5) (SC-74A), which measures 2.9mm x 2.8mm, and small capacitance ceramic capacitors can be used at input and output.

"These new CMOS low-dropout regulators represent the latest innovation from Toshiba and give designers important new flexibility," said Homayoun Ghani, business development manager, Logic and Small Signal Device/Discrete Business Unit for TAEC. "Their low-dropout voltage, low quiescent current, reduced power consumption and small packaging provide a new set of options for circuit design and improved performance of cellular phones and other portable equipment."

Technical Specifications

Dropout Output
Parts Output Voltage @ noise Anticipated
number voltage Iout=50mA IB(OFF) voltage ES MP

TCR5B15 1.5V 150mV 0.1µA 25µVrms OK 2Q/07
TCR5B18 1.8V 130mV 0.1µA 25µVrms OK 2Q/07
TCR5B19 1.9V 110mV 0.1µA 25µVrms OK 2Q/07
TCR5B25 2.5V 90mV 0.1µA 30µVrms OK 2Q/07
TCR5B27 2.7V 90mV 0.1µA 30µVrms OK 2Q/07
TCR5B28 2.8V 85mV 0.1µA 30µVrms OK 2Q/07
TCR5B29 2.9V 85mV 0.1µA 30µVrms OK 2Q/07
TCR5B30 3.0V 85mV 0.1µA 30µVrms OK 2Q/07
TCR5B33 3.3V 85mV 0.1µA 35µVrms OK 2Q/07
TCR5B50 5.0V 85mV 0.1µA 40µVrms OK 2Q/07

Pricing and Availability

Samples of selected new CMOS LDO are available now, and the MP products are anticipated to be available by second quarter. The devices range in price from $0.12 to $0.15 each in sample quantities.

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. (Source: "2006 Worldwide Semiconductor Market Share Report," Gartner, released April 2007). More specifically, Toshiba is a leading supplier in a number of discrete product categories, including power transistors, rectifiers and thyristors, L-MOS logic, CMOS logic, optoelectronics, 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

Combining quality and flexibility with design engineering expertise, TAEC brings a breadth of advanced, next-generation technologies to its customers. This broad offering includes memory and flash memory-based storage solutions, a broad range of discrete devices, displays, medical tubes, ASICs, custom SOCs, microprocessors, microcontrollers and wireless components for the computing, wireless, networking, automotive and digital consumer markets.

TAEC is an independent operating company owned by Toshiba America, Inc., a subsidiary of Toshiba Corp. (Toshiba), Japan's largest semiconductor manufacturer and the world's fourth largest semiconductor manufacturer. In more than 130 years of operation, Toshiba has recorded numerous firsts and made many valuable contributions to technology and society. For additional company and product information, please visit TAEC's website at chips.toshiba.com. For technical inquiries, please e-mail Tech.Questions@taec.toshiba.com. Photo available for download at http://toshiba.com/taec/news/press_releases/2006/disc_07_476.jsp.

(1) The quiescent current of the TCR5SB series is 75% or more lower than
TAR5S based on a current reading of the TCR5SB series (CMOS LDO) of
40µA vs. the current reading of the TAR5S series (existing bipolar
LDO) of 170µA.

Source: Toshiba America Electronic Components, Inc.

CONTACT: Poloi Lin of Toshiba America Electronic Components, Inc., +1-949-623-3098, poloi.lin@taec.toshiba.com

Web site: http://www.toshiba.com/taec

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