The HX3002 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 improves efficiency.  The HX3002 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. The devices also featured providing up to 260mA from a single AA cell input or up to 450mA from a 2-cell AA with a 3V/3.3V output. The HX3002 regulators are available in the industry standard SOT-23-6 power packages (or upon request)

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: 0.33Ω   1.4MHz fixed frequency switching  Automatic PWM/PFM mode switching  High switch on current: 700mA  Current-mode control and internal compensation  Low profile SOT-23-6 package (lead-free packaging is now available)

 

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