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ACT8828 датащи(PDF) 21 Page - Active-Semi, Inc |
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ACT8828 датащи(HTML) 21 Page - Active-Semi, Inc |
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21 / 49 page ![]() STEP-DOWN DC/DC CONVERTERS ACT8828 Rev 3, 24-Sep-09 Active-Semi Innovative Power TM - 21 - www.active-semi.com Copyright © 2009 Active-Semi, Inc. ActivePMU TM and ActivePathTM are trademarks of Active-Semi. I 2CTM is a trademark of Philips Electronics. (ACT8828QJ16C, VVP3 = 3.6V, L = 3.3µH, CVP3 = 4.7μF, COUT3 = 10μF, TA = 25°C, unless otherwise specified.) TYPICAL PERFORMANCE CHARACTERISTICS CONT’D VP3 Input Voltage (V) 6.0 0.1 REG3 RDSON vs. VP3 Input Voltage 0.45 0.35 0.25 0.50 0.40 0.30 0.20 0.15 5.0 4.5 4.0 3.5 3.0 PMOS NMOS REG3 Efficiency vs. Load Current 1000 Load Current (mA) 80 10 100 VVSYS = 4.2V VOUT3 = 1.2V 60 40 20 1 0 100 VVSYS = 3.6V VVSYS = 4.6V 5.5 OUT3 Regulation Voltage vs. Temperature 1.212 1.188 Temperature (°C) -20 -40 0 20 40 60 1.208 1.204 1.200 1.196 1.192 IOUT3 = 35mA 85 |
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