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MPQ4485 데이터시트(PDF) 2 Page - Monolithic Power Systems |
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MPQ4485 데이터시트(HTML) 2 Page - Monolithic Power Systems |
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2 / 22 page ![]() MPQ4485 – STEP-DOWN CONVERTER WITH DUAL USB CHARGING PORTS MPQ4485 Rev.1.0 www.MonolithicPower.com 2 9/18/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. TYPICAL APPLICATION MPQ4485 PGND EN IN AGND SW USB1 OUT VIN 12V L1 4.7µH VCC BST C4 220nF DM1 DP1 USB2 DM2 USB1, 3A USB2, 2.5A MODE C2A 20µF C6 4.7µF C5 4.7µF U S B U S B + C1 100µF C1A 50µF CC2 CC1 DP2 DP2_OUT DM2_OUT POL Vout=5.17V C3 1µF To Host Controller + C2 270µF C7 1nF L3, Bead, 1kΩ@100MHz R3 1kΩ R1 0Ω R4 150Ω Efficiency vs. Load Current 72 76 80 84 88 92 96 100 0 1 2 3 4 5 Load Current (A) Vin=12V Vin=6V Vin=36V |
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