Sunnyvale, Calif.The ATT1210 from Advanced Analogic Technologies Inc. (AnalogicTech) is a high power, high current step-up converter for thin, small-footprint portable applications. Supplying up to 4.5W of power, the AAT1210 converter takes a single-cell Lithium-ion battery voltage and boosts it to a 5V/900-mA output in a total solution less than 1 mm in height.
Operating from an input range of 2.7 to 5.5V, this DC/DC boost converter features an output voltage which can be set from VIN + 0.5V up to 18V. A hysteretic current mode control circuit simplifies system design by eliminating the need for external compensation. A high 2 MHz switching frequency enables the use of extremely small and low-profile external components and allows designers to build products that consume less PCB area and are less than or equal to 1 mm tall.
To help minimize leakage current common on boost converters, the AAT1210 also features a True Load Disconnect function that isolates the load from the power source when the AAT1210 is turned off. This feature helps the AAT1210 achieve ultra-low sleep mode current consumption without the use of an external MOSFET. In general, the AAT1210 achieves power efficiency levels up to 90% over a wide load range, according to the company.
Pricing: $1.31 each in 1000-piece quantities.
Availability: Now in a Pb-free, thermally-enhanced, 16-pin TDFN34 package.
Advanced Analogic Technologies Inc. (AnalogicTech), 1 408 737 4600, www.analogictech.com