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UC3500 Datasheet(PDF) 4 Page - Unisonic Technologies |
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UC3500 Datasheet(HTML) 4 Page - Unisonic Technologies |
4 / 12 page UC3500 CMOS IC UNISONICTECHNOLOGIESCO.,LTD 4 of 12 www.unisonic.com.tw QW-R502-072.D ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Output Voltage VOUT 7 V Input Voltage VIN 7 V LX Pin Voltage VLX 7 V LX Pin Output Current ILX Internally limited Power Dissipation at 25°С 160 mW Derating Rate Ta>25°С SOT-23/SOT-25 PD 1.6 °С/mW Operating Junction Temperature TOPR -25 ~ +85 °С Storage Temperature TSTG -65 ~ +150 °С Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ELECTRICAL CHARACTERISTICS (Ta = 25°С, unless otherwise specified.) UC3500-2.5V (VIN = 1.4V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage VOUT IOUT = 10mA 2.4 2.5 2.6 V IOUT = 0 0.7 1.1 V Start-up Voltage (VIN-VF) (Note) VSTART IOUT = 1mA 0.8 1.2 V IOUT = 0 0.4 0.6 V Hold-on Voltage VHOLD IOUT = 1mA 0.3 0.5 V Supply Current ISUPPLY IOUT = 0 18 µA Internal Switch RDS(ON) RLX ILX = 100mA 760 mΩ Internal Leakage Current ILX(LEAK) VLX = 4V, VOUT = 2.8V 0.1 0.3 µA Maximum Oscillator Frequency fOSC IOUT = 10mA 150 KHz Oscillator Duty Cycle Dty IOUT = 10mA 75 % IOUT = 10mA 81 % IOUT = 50mA 83 % Efficiency η IOUT = 100mA 82 % UC3500-2.7V (VIN = 1.6V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage VOUT IOUT = 10mA 2.6 2.7 2.8 V IOUT = 0 0.7 1.1 V Start-up Voltage (VIN-VF) (Note) VSTART IOUT = 1mA 0.8 1.2 V IOUT = 0 0.4 0.6 V Hold-on Voltage VHOLD IOUT = 1mA 0.3 0.5 V Supply Current ISUPPLY IOUT = 0 18 µA Internal Switch RDS(ON) RLX ILX = 100mA 760 mΩ Internal Leakage Current ILX(LEAK) VLX = 4V, VOUT = 3.0V 0.1 0.3 µA Maximum Oscillator Frequency fOSC IOUT = 10mA 150 KHz Oscillator Duty Cycle Dty IOUT = 10mA 75 % IOUT = 10mA 82 % IOUT = 50mA 83 % Efficiency η IOUT = 100mA 82 % |
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