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Ricoh R1131x - 300mA LDO Featuring Industry's Lowest Operating Voltage & Minimum Output Voltage

Amstelveen, The Netherlands, December, 2004 -- Ricoh Europe B.V., the European headquarters of Ricoh Company Ltd., Tokyo, announces the launch of the R1131x Voltage Regulator. Nowadays applications often require multiple supply voltages; new generation processors even demand a low supply voltage, lower than most current LDO's can supply. The new R1131x is a powerful 300 mA LDO, specially designed to be used in combination with new and current processors. It provides a secure and stable supply voltage from a very low input voltage. This particular feature makes R1131x an attractive product on the market of battery-operated applications.

The R1131x is able to operate in an input voltage range from 1.4 V to 6.0 V. It is very suitable to use the R1131x, for example, in combination with a 1.8 V step down DCDC converter in order to make a second supply voltage. The operating voltage range of most other LDO’s is limited to approximately 2.0 V but the R1131x is specially designed to solve this problem. Any output voltage in a range from 0.8 V to 3.3 V can be selected and is pre-set in our factory (in a 0.1 V step) by laser trimming.

Among other features of the newly launched R1131x are: safety countermeasures like current limit / short circuit protection, high ripple rejection for low-noise and an optional auto-discharge function for the output capacitor.

The R1131x comes in three different package types: Industry Standard SOT23-5, Small & Thin SON6 and High Wattage HSON6.

R1131x Features

Operating voltage

1.4 V to 6.0 V

Output voltage

(in 0.1 V step) 0.8 V to 3.3 V

Dropout voltage

230 mV at 300 mA

Output current

300 mA

Supply current

(Vout < 1.8 V) 80 µA, (Vout ≥1.8 V) 60 µA

Standby current

0.1 µA

Ripple rejection

(f=1 kHz) 65 dB

Output capacitors

(Vout < 1.0 V, Tantalum) minimum 1.0 µF

(Vout ≥ 1.0 V, Ceramic) minimum 1.0 µF

Package

(L: 2.8 x W: 2.9 x H: 1.1 mm) SOT23-5

(L: 3.0 x W: 1.6 x H: 0.8 mm) SON6

(L: 3.0 x W: 2.9 x H: 0.9 mm) HSON6

A-Version

CE pin Active Low

B-Version

CE pin Active High

D-Version

CE pin Active High & with Auto Discharge function



Note to editors
Ricoh Company Ltd. is a leading global manufacturer of office automation equipment. The line up includes copiers, multifunctional and other printers, fax machines, personal computers, CD-Recordable, CD-ReWritable and DVD-ReWritable drives and media, and related supplies and services as well as digital cameras and advanced electronic devices. Ricoh is rapidly building a solid presence worldwide as a provider of comprehensive document solutions that help customers streamline their business and cut operating cost. The Ricoh Group has 319 companies -of which 199 outside Japan- together employing over 76,000 people.
Ricoh Europe B.V. is the European headquarters of Ricoh Company Ltd., the leading global manufacturer of office equipment, located in Amstelveen, The Netherlands. It is responsible for marketing, sales and service of Ricoh products in Europe, the Middle East and Africa. In Europe, Ricoh has three manufacturing sites: two at Ricoh UK Products Ltd. Telford, UK; GR Advanced Materials Ltd., Stirling, UK; and Ricoh Industrie France S.A., Colmar, France. In addition, the Ricoh European Group comprises sales subsidiaries and affiliates in 21 countries. In the fiscal year ended March 31, 2006, revenues from Ricoh’s European operations totalled over € 3.15 billion, accounting for 22.7% of the company’s global revenues. Ricoh’s worldwide sales increased by 5.6% totalling ¥ 1,915 billion (€ 13.9 billion).

For further information please contact:
Ricoh Europe B.V.
Semiconductor Support Centre
Hans Adams, Sr. Application Engineer
Tel.: +31 (0)20 54 74 309
Fax: +31 (0)20 54 74 791
Homepage: www.ricoh.com/LSI/
E-mail: semicon@ricoh-europe.com




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