Sunnyvale, Calif. (PRWEB) October 26, 2003

Catalyst Semiconductor (Nasdaq: CATS) has added shunt

voltage regulators to its mixed signal product line. The CAT431L is a precision 1.24 volt shunt regulator featuring 0.5 percent accuracy. The CAT102 is a precision 0.6 volt shunt regulator. Output voltage for both regulators can be set with external resistors.

“Shunt voltage regulators will sell along side our digital potentiometers in high end power supplies that target non-consumer computer and telecommunication systems.

Additional products scheduled for later this year will integrate regulators with microcontroller supervisory functions,” said Catalyst Semiconductor Director of Marketing David Gillooly.

CAT431L Features


The CAT431L offers twice the accuracy of the pin compatible TLV431A device. Initial output voltage reference accuracy is +/-0.5 percent or +/-6 millivolts. Surface mount and through-hole PCBs are supported with SOT23 packages and the 3-lead, TO-92 package.

CAT102 Features


The 0.6V output voltage of the CAT102 makes it ideal for low voltage power supplies. Initial output accuracy is +/-1% or 6 millivolts. Power supply rejection is 45 dB at 300 kilohertz. The error amplifier power supply connection and the output are available on separate pins.

Price, Packages and Availability


The CAT431L is offered in SOT-23 and TO-92 packages. It is a higher precision, drop-in

replacement for the Texas Instruments TLV431A. The CAT102 is available in a SOT23 package. Prices start at $ 0.14 in 10,000 piece quantities. Devices are currently available for sampling and production orders.

Data sheets are available at

About Catalyst Semiconductor


Founded in 1985, Catalyst Semiconductor, Inc. is headquartered in Sunnyvale, California.

The Company is a developer and marketer of programmable products used in telecommunications, networking systems, computation, automotive, industrial and consumer markets. The Company designs and markets a broad range of programmable products including Flash Memories, Parallel and Serial EEPROMs with I2C, SPI and Microwire interfaces, NVRAMs, Digitally Programmable Potentiometers, Microcontroller Supervisory circuits and other programmable Mixed Signal products. Typical applications for the Company’s products include optical networks, modems, wireless LANs, network cards, PC BIOS, DIMM modules, cellular telephones, digital satellite box receivers, set-top boxes and Internet routers. Catalyst’s

Quality Management System is ISO9001 certified.

Additional information about Catalyst Semiconductor is available on the Company’s web

site at

Except for those statements that report the Company’s historical results, the statements

being made are forward-looking statements. Actual results could differ materially from

those projected in the forward-looking statements. Additional information concerning

factors that could cause actual results to differ materially from those in the forward-looking statements is contained under the heading “Certain Factors That May Affect the Company’s Future Results of Operations” listed from time to time in Catalyst’s SEC reports

including but not limited to the report on Form 10-K for the year ended April 30, 2003, and more recent Forms 10-Q.

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