The AS1340 high-voltage boost-regulator delivers up to 50-V output voltage and is suited for LCD or OLED display bias in battery-powered applications. It delivers 50 mA at 24 V or 30 mA at 36 V from a single Li-ion cell and can provide output voltages from 2.7 to 50 V. The converter operates from a single 2.7 to 5.5-V supply. The converter supply can be split to allow a 50-V supply voltage for the coil. The 1-MHz fixed switching frequency enables the use of low-profile inductors and capacitors.
The converter offers an automatic power-save operation that improves efficiency at light loads. The design reduces the operating supply current to 30 µA and increases battery life. The device has a shutdown mode that requires less than 1 µA current combined with an output disconnect feature. (Contact company for pricing and availability.)
austriamicrosystems , Unterpremstaetten , Austria
Manfred Kogler 011-43-3136-500-5274
manfred.kogler@austriamicrosystems.com
http://www.austriamicrosystems.com
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