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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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AS3701 Arkusz danych(PDF) 17 Page - ams-OSRAM AG |
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AS3701 Arkusz danych(HTML) 17 Page - ams-OSRAM AG |
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17 / 110 page  Page 16 ams Datasheet Document Feedback [v1-11] 2016-Dec-14 AS3701 − Detailed Description – Power Management Functions Figure 17: DCDC Step-Down Converter External Components Figure 18: DCDC Step Down Converter Efficiency vs. Load Current at 1MHz DCDC Efficiency vs. Output Current: VSUP = 3.7V, fSW = 1MHz, Murata LQM2HPN2R2MG0L 2.2μH coil, TAMB = 25°C. Symbol Parameter Note Min Typ Max Unit CFB_SD1 Output Capacitor Ceramic X5R or X7R 8 10 μF CVSUP_SD1 Input Capacitor Ceramic X5R or X7R 2.2 μF LSD1 Inductor 4MHz operation 1 μH 3MHz operation 1 2MHz operation 1 1MHz operation 2.2 10 20 30 40 50 60 70 80 90 100 0.001 0.01 0.1 1 Output Current (A) Vout = 0.6125V Vout = 0.6125V, low noise Vout = 1.2V, low noise Vout = 1.2V Vout = 1.8V, low noise Vout = 1.8V Vout = 3.0V, low noise Vout = 3.0V 10 20 30 40 50 60 70 80 90 100 0.001 0.01 0.1 1 Output Current (A) Vout = 1.0V, low noise Vout = 1.0V Vout = 1.5V, low noise Vout = 1.5V Vout = 2.5V, low noise Vout = 2.5V Vout = 3.35V, low noise Vout = 3.35V |
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