AAT1265

Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package General Description The AAT1265 is a member of Analogic Tech's Total Power Management IC™ (TPMIC™) product family and is designed for single-cell or dual-cell alkaline, NiMH, or NiCd battery-powered applications. It is a high efficiency, synchronous, fixed frequency, stepup converter with true output disconnect during shutdown (<1.0µA), start-up inrush current limit, and short-circuit protection. The high 2MHz switching frequency and completely integrated control circuitry minimize the total solution footprint area while maintaining excellent regulation, ripple, and transient response throughout the full load range. Light load switching frequency modulation and low quiescent current maintain high efficiency performance for light load and sleep mode conditions. With a 1A peak switch current limit, the AAT1265 is capable of delivering 100mA to a 3.3V load with a single AA cell or up to 250mA from a dual AA cell. The device has a 1.0V start-up voltage with operawww.DataSheet4U.com tion down to 0.8V. The AAT1265 is available in a Pb-free, space-saving 2.0x2.1mm 8-pin SC70JW package and is rated over the -40°C to +85°C temperature range. AAT1265 Features SwitchReg™ 100mA Output from a Single AA Cell Input 250mA Output from a Dual AA Cell Input VIN Operation Range: 0.8V to VOUT Up to 93% Efficiency Low Start-Up Voltage: 1.0V Typical Internal Synchronous Rectifier Current Mode Control wi...