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ACE708 Datasheet(PDF) 1 Page - ACE Technology Co., LTD. |
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ACE708 Datasheet(HTML) 1 Page - ACE Technology Co., LTD. |
1 / 8 page ACE708 Technology 300mA Iout, 0.85V startup, 1MHz, Synchronous Boost Converter VER 1.2 1 Description The ACE708 is a step-up converter that provides a boosted output voltage from a low voltage source. Because of its proprietary design, it starts up at a very low input voltage down to 850mV, making it an ideal choice for single cell alkaline/NiMH battery operations. A switching frequency of 1MHz minimizes solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. The current mode PWM design is internally compensated, reducing external parts count. Features • Up to 95% Efficiency • 1MHz Switching Frequency allows small inductor and output cap • Input boost-strapping allows using small or no input cap • Low Vin Start-up Voltage down to 850mV Ideal for Single Alkaline Cell operations • Maximum Output Current up to 300mA • Low Noise PWM control • Internally Compensated Current Mode Control • Internal Synchronous Rectifier • Logic Control Shutdown (IQ<1uA) • Available in SOT-23-5 Application • One to Three Cell Battery Operated Devices • Medical Instruments • Bluetooth Headsets • Flash-Based MP3 Players • Noise Canceling Headphones Absolute Maximum Ratings Parameter Symbol Max Unit SW Voltage VIN -0.3~6 V EN, FB, OUT Voltage -0.3~6 V Junction to Ambient Thermal Resistance 190 OC/ W Maximum Power Dissipation 0.45 W Operating Temperature Range -40~150 OC Storage Temperature -55~150 OC |
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