LTC Announces LTC3426 Step-Up DC-DC Converter

Linear Technology Corp. (LTC, Milpitas, CA) announced its new LTC3426, a 2 A, 6 V, 1.2 MHz step-up dc-dc converter in a ThinSOT™ package. Its wide 1.6 V to 4.2 V input-voltage range enables the LTC3426 to operate from dual-cell alkaline/nickel-metal hydride/nickel-cadmium to single-cell lithium-ion batteries, delivering outputs up to 5.5 V with efficiencies over 90%.

The device's constant 1.2 MHz switching frequency allows designers to keep switching noise out of noise-sensitive circuitry and enables the use of tiny capacitors and inductors. The LTC3426's 100 mΩ switch provides high efficiency at heavy loads. It can generate up to 800 mA of output current at 5 V from a 3.3 V supply. Anti-ringing 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.