전자부품 데이터시트 검색엔진 |
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SS6639-50CXBG 데이터시트(PDF) 4 Page - Silicon Standard Corp. |
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SS6639-50CXBG 데이터시트(HTML) 4 Page - Silicon Standard Corp. |
4 / 12 page www.SiliconStandard.com 4 of 12 SS6639 n ELECTRICAL CHARACTERISTICS (Continued) PARAMETER TEST CONDITIONS SYMBOL MIN. TYP. MAX. UNIT Oscillator Duty Cycle VIN=VOUT x 0.95 Measurement of the EXT Pin Waveform DUTY 65 75 85 % Max. Oscillator Freq. VIN=VOUT x 0.95 Measurement of the EXT Pin Waveform FOSC 80 105 130 KHz Efficiency η 80 % n TYPICAL PERFORMANCE CHARACTERISTICS Inductor (L1): 33 µH (Pin Type) Capacitor (C1): 47 µF (Tantalum Type) Diode (D1): 1N5819 Schottky Type Transistor (Q1): 2SD1803 0 50 100 150 200 250 300 350 400 450 500 2.40 2.45 2.50 2.55 2.60 2.65 2.70 2.75 2.80 Fig. 1 SS6639-27 Load Regulation (L=33 µH) V IN = 2.0 V V IN= 1.8V V IN = 1.5 V V IN = 1.2 V V IN=0.9V Output Current (mA) 0 50 100 150 200 250 300 350 400 450 500 50 55 60 65 70 75 80 85 90 Fig. 2 SS6639-27 Efficiency (L=33uH) Output Current (mA) V IN = 2.0V V IN =1.8V V IN= 1.5V V IN= 1.2V V IN = 0.9V 0 50 100 150 200 250 300 350 400 450 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 Fig. 3 SS6639-30 Load Regulation (L=33 µH) Output Current (mA) VIN=2.0V VIN=1.8V VIN=1.5V VIN=1.2V VIN=0.9V Output Current (mA) 0 50 100 150 200 250 300 350 400 450 60 65 70 75 80 85 90 Fig. 4 SS6639-30 Efficiency (L=33 µH) VIN=2.0V VIN=1.8V VIN=1.5V VIN=1.2V VIN=0.9V Rev.2.01 6/26/2003 |
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