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MAX20021 Datasheet(PDF) 5 Page - Maxim Integrated Products |
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MAX20021 Datasheet(HTML) 5 Page - Maxim Integrated Products |
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5 / 16 page  MAX20021/MAX20022 Automotive Quad, Low-Voltage Step-Down DC-DC Converters Maxim Integrated │ 5 www.maximintegrated.com Typical Operating Characteristics (VA = VPV1 = VPV2 = VPV3 = VPV4 = 5.0V; TA = +25ºC, unless otherwise noted.) BUCK EFFICIENCY (3.2MHz) vs. LOAD CURRENT LOAD CURRENT (A) 0.1000 0.0100 0.0010 0.0001 1.0000 10 20 30 40 50 60 70 80 90 100 0 VOUT2 = 1.2V VOUT4 = 1.8V VOUT1 = 3.3V VOUT3 = 2.65V fSW = 3.2MHz, VPV_ = 5V LX LEAKAGE CURRENT vs. TEMPERATURE TEMPERATURE (ºC) 80 100 120 40 60 -40 -20 20 0 0 100 200 300 400 500 600 700 800 -100 -60 140 LX_ TO PV_ LX_ TO PGND_ BUCK EFFICIENCY (2.2MHz) vs. LOAD CURRENT LOAD CURRENT (A) 0.1000 0.0100 0.0010 0.0001 1.0000 10 20 30 40 50 60 70 80 90 100 0 fSW = 2.2MHz, VPV_ = 5V VOUT2 = 1.2V VOUT4 = 1.8V VOUT1 = 3.3V VOUT3 = 2.65V LOAD REGULATION (BUCK 1) IOUT1 (A) 0.8 0.7 0.9 0.6 0.5 0.2 0.1 0.4 0.3 3.22 3.24 3.26 3.28 3.32 3.30 3.34 3.36 3.20 0 1.0 SUPPLY CURRENT vs. SUPPLY VOLTAGE SUPPLY VOLTAGE (V) 5.2 4.7 4.2 3.7 3.2 5 10 15 20 25 30 0 2.7 5.7 TA = -40ºC TA = +25ºC TA = +125ºC VPV_ = VA = VEN_ LINE REGULATION (BUCK 2) VPV2 (V) 5.2 4.7 4.2 3.7 3.2 99.8 100.0 100.2 100.4 100.6 100.8 101.0 99.6 2.7 5.7 TA = +125ºC TA = +25ºC TA = -40ºC STARTUP SEQUENCE MAX20021 toc07 2ms/div VOUT1 VOUT2 VOUT3 VOUT4 |
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