Torex : Line switch IC needs no external capacitors

Following the success of its XC8101 Series low supply current line switch IC, Torex Semiconductor introduces the 2nd generation XC8102 Series. Available in the ultra-small USP-4 package, as well as in standard SOT-25 and SSOT-24 versions, the new device does not require any external capacitors and so is suitable for space critical designs such as those in hand-held, battery-powered applications.

Many key features on the new XC8102 device have been improved upon over the XC8101 Series. Andy Scott, Marketing Manager for Torex Semiconductor in Europe, commented: “The second generation XC8102 Series addresses a wider range of applications – we’ve increased IOUT to 400mA from 200mA, lowered the VIN range to 1.2V minimum from 1.8V and lowered the ON resistance to 0.35Ω (VIN = 2.9V) from 0.75Ω.”

The XC8102 Series contains a current limit and protection circuit so these are not required externally unlike discrete circuit solutions where MOSFET and resistors are used. By connecting, for example, the XC8102’s VIN pin to the output pin of a step-down DC-DC converter, such as the XC9235 from Torex, the line switcher can be used to provide a number of accurate output rails.

The XC8102’s CE pin controls the ON/OFF for each switcher to deliver power as and when needed thereby optimising efficiency and power consumption. During the switch into standby mode, the electric charge at the CL capacitor, if used, is discharged via the internal auto-discharge switch, ensuring that the VOUT pin drops down to ground quickly. The XC8102 Series contains an over current protection with fold-back current circuitry which operates as over current protection and short circuit protection for the output pin.

More information about the XC8102 line switch, which includes a supporting datasheet, can be found directly on Torex Semiconductor’s website at:

In 2001 Torex Semiconductor Limited set up a separate European sales & logistics company, Torex Semiconductor Europe Limited, reflecting its buoyant sales in the European market over the last few years.  Based near Loughborough in the UK, the new company provides all technical support and logistics for European customers.

To find out more about Torex Semiconductor and its product line-up, visit the company’s website at:

Andy Scott, Torex Semiconductor Europe Ltd,
Tel.: +44 (0)1530 512404
Fax: +44 (0)1530 512400

Torex Semiconductor Europe Ltd, Unit 1 The Courtyard, Whitwick Business Park, Stenson Road, Coalville, Leicestershire LE67 4JP, England

Note: The above text is the public part of the press release obtained from the manufacturer (with minor modifications). EETimes Europe cannot be held responsible for the claims and statements made by the manufacturer. The text is intended as a supplement to the new product presentations in EETimes Europe magazine.

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