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UU28121G-AF5-R 数据表(PDF) 5 Page - Unisonic Technologies |
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UU28121G-AF5-R 数据表(HTML) 5 Page - Unisonic Technologies |
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5 / 6 page ![]() UU28121 CMOS IC UNISONICTECHNOLOGIESCO.,LTD 5 of 6 www.unisonic.com.tw QW-R135-001.C TYPICAL APPLICATION CIRCUIT L1 4.7uH VCC EN SW FB GND VIN=5V C1 2.2uF R3 100K C3 0.1uF 5 4 U1 1 3 2 D1 SB240 VOUT=12V R1 470K R2 54K C2 2.2uF VOUT=1.238V×(1+ ) R1 R2 R1 Suggest 300K~850K 1. VOUT < 18V L1 2.2~4.7uH VCC EN SW FB GND VIN=5V C1 2.2uF R3 100K C3 0.1uF 5 4 U1 1 3 2 D1 SB240 VOUT=24V R1 720K R2 39K C2 2.2uF VOUT=1.238V×(1+ ) R1 R2 R1 Suggest 300K~850K 2. VOUT ≥ 18V C3 22pF |
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