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UC3500 датащи(PDF) 1 Page - Unisonic Technologies |
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UC3500 датащи(HTML) 1 Page - Unisonic Technologies |
1 / 9 page UNISONIC TECHNOLOGIES CO., LTD UC3500 CMOS IC www.unisonic.com.tw 1 of 9 Copyright © 2005 Unisonic Technologies Co., Ltd QW-R502-072,A HIGH EFFICIENCY VFM CONTROLLED STEP-UP DC/DC CONVERTER APPLICATIONS * Cellular telephones * PDA and hand held instruments * Palmtop and notebook computer * Portable equipment * Battery powered equipment DESCRIPTION The UTC UC3500 Step-up DC/DC converters are optimized for applications that prioritize high efficiency and high frequency. The efficiency is greatly improved by utilizing an internal VFM controlled scheme that switches with fixed frequency and is adjustable up to more than 300 KHz depending on the load. The UTC UC3500 requires only three external components to realize the conversion from the battery voltage to the selected output voltage in the range of 2.5V ~ 5.5V. The start-up voltage of UTC UC3500 is guaranteed at 0.8V and the device is operating down to 0.5V. The Output current is guaranteed up to 150mA, while quiescent current is only 18µA. FEATURES * 0.8V start-up voltage * 0.5V hold-on voltage * Output current up to 150mA * Low supply current of 18µA * Wide output voltage range of 2.5V~5.5V * Output voltage accuracy ±2% * High efficiency up to 88% * Low profile and minimum external components SOT-25 4 5 3 2 1 1 SOT-89 *Pb-free plating product number: UC3500L ORDERING INFORMATION UC3550L-xx-AB3-R (1)Packing Type (2)Package Type (4)Lead Plating (1) R: Tape Reel (2) AB3: SOT-89, AF5: SOT-25 (4) L: Lead Free Plating, Blank: Pb/Sn (3) xx: reference to Marking Information (3)Voltage Code Order Number Normal Lead Free Plating Package Packing UC3500-xx-AB3-R UC3500L-xx-AB3-R SOT-89 Tape Reel UC3500-xx-AF5-R UC3500L-xx-AF5-R SOT-25 Tape Reel |
Аналогичный номер детали - UC3500 |
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Аналогичное описание - UC3500 |
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