Product Announcement from Skyworks Solutions, Inc.
The AAT1217 a high efficiency, synchronous, fixed frequency, step-up converter designed for single-cell or dual-cell alkaline, NiMH, or NiCd battery-powered applications. The high 1.2 MHz 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.
Pulse skipping mode operation and low quiescent current allow the AAT1217 to maintain high efficiency performance for light load and sleep mode conditions. With a 1.2 A peak switch current limit, the AAT1217 is capable of delivering 100 mA to the load from a single AA cell or up to 40 0mA from dual AA cells.
The AAT1217 has a 0.85 V start-up voltage with operation down to 0.5 V. The AAT1217 is available in a Pb-free, space-saving low profile (1mm) 6-pin SOT23 package and is rated over the -40 °C to +85 °C ambient temperature range.