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2A Step-Up DC/DC Converter for space constrained apps

Milpitas, CA. — Linear Technology Corporation announces the LTC3426, a 2 Amp, 6V, 1.2MHz step-up DC/DC converter in a ThinSOT package. Its wide 1.6V to 4.2V input voltage range enables the LTC3426 to operate from dual cell Alkaline/NiMH/NiCd to single cell Li-Ion batteries, delivering outputs up to 5.5V with efficiencies over 90%. Its constant 1.2MHz switching frequency allows designers to keep switching noise out of noise-sensitive circuitry and enables the use of tiny capacitors and inductors. The combination of the LTC3426's high efficiency switch and tiny ThinSOT package provides high current boost capability in a very compact form factor, making it ideal for space-constrained applications.

The LTC3426's 100mOhm switch provides high efficiency at heavy loads. It can generate up to 800mA of output current at 5V from a 3.3V supply. Antiringing circuitry reduces EMI concerns by damping the inductor while in discontinuous mode, and internal soft-start eases inrush current concerns.

The LTC3426ES6 is available from stock in a ThinSOT package. Pricing starts at $1.75 each for 1,000-piece quantities.

Summary of LTC3426 Features:
* Internal 2A MOSFET Switch
* 1.2MHz Switching Frequency
* Delivers 5V at 800mA from a 3.3V Input
* Delivers 3.3V at 800mA from a 2.5V Input
* Integrated Soft-Start
* VIN Range: 1.6V to 4.3V
* Low RDS(ON) Switch: 100 milliOhmï at 5V Output
* Low Profile (1mm) SOT-23 (ThinSOT) Package

For more information, contact: Linear Technology Corporation, 1630 McCarthy Boulevard, Milpitas, CA 95035-7417. Tel: 408-432-1900 or 1-800-4-LINEAR (800-454-6327)
web site: www.linear.com

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