AX3001

HX1001 AX3001 Synchronous Boost DC/DC Regulator Features � � � � � � � � � � Up to 94% Efficiency Low voltage start-up：0.9V Shut-down current: < 1μA Input voltage：0.9V～4.4V Output voltage：2.5V～4.3V (Up to 5V with Schottky) Low switch on resistance RDS(ON), Internal switch: 0.35Ω 1.4MHz fixed frequency switching Automatic PWM/PFM mode switching High switch on current: 0.9A Low profile SOT-23-6 package (lead-free packaging is now available) Description The AX3001 is high efficiency synchronous, PWM step-up DC/DC converters optimized to provide a high efficient solution to medium power systems. The devices work under the input voltage between 0.9V and 4.4V with a 1.4MHz fixed frequency switching. These features minimize overall solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. Automatic PWM/PFM mode switching at light load saves power and improve efficiency. The AX3001 is capable of supplying an output voltage between 2.5V and 4.3V, the internal synchronous switch is desired to provide high efficiency without Schottky. Applications � � � � � � Digital cameras and MP3 Palmtop computers / PDAs Cellular phones Wireless handsets and DSL modems PC cards Portable media players The devices also featured providing up to 260mA from a single AA cell input or up to 600mA from a 2-cell AA with a 3V/3.3V output. The AX3001 regulators are available in the industry standard SOT-23-6 power packages (or upon request). Order Information AX3001 - ① ...