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SC189HEVB-1 Datasheet(PDF) 8 Page - Semtech Corporation |
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SC189HEVB-1 Datasheet(HTML) 8 Page - Semtech Corporation |
8 / 23 page www.semtech.com © 2009 Semtech Corp. 8 SC189 Typical Characteristics (continued) UVLO Rising Threshold Variation UVLO Rising Threshold Variation -1.0% -0.8% -0.6% -0.4% -0.2% 0.0% 0.2% 0.4% 0.6% 0.8% 1.0% -40 -15 10 35 60 85 Ambient Temperature (°C) IOUT= 0A UVLO Hysteresis Variation -5% -4% -3% -2% -1% 0% 1% 2% 3% 4% 5% -40 -15 10 35 60 85 Ambient Temperature (°C) IOUT= 0A UVLO Hysteresis Variation Dropout Voltage in 100% Duty Cycle Operation Dropout Voltage of 100% Duty Cycle Operation (MLP) 0 50 100 150 200 250 300 350 400 450 500 0.0 0.3 0.6 0.9 1.2 1.5 Output Current (A) Package: MLPD-UT6 TA= 25°C L= MDT2520-CR1R0M (DCR= 80m _max) L= 1071AS-1R0 (DCR=40m _max) Load Regulation (V OUT=1.5V) Load Regulation -1.0% -0.8% -0.6% -0.4% -0.2% 0.0% 0.2% 0.4% 0.6% 0.8% 1.0% 0.0 0.3 0.6 0.9 1.2 1.5 Output Current (A) VIN= 5.0V VIN= 3.3V VOUT= 1.50V TA=25°C Load Regulation -1.0% -0.8% -0.6% -0.4% -0.2% 0.0% 0.2% 0.4% 0.6% 0.8% 1.0% 0.0 0.3 0.6 0.9 1.2 1.5 Output Current (A) VIN= 5.0V VIN= 4.0V VOUT= 3.30V TA=25°C Load Regulation (V OUT=3.3V) Circuit Conditions: C IN= 10uF/6.3V; COUT= 10uF/6.3V for L=2.2uH; COUT= 22uF/6.3V for L=1uH. Unless otherwise noted, L= 2.2uH (TOKO: 1071AS-2R2M) and SC189 in MLPD-UT6 package. Dropout Voltage in 100% Duty Cycle Operation Dropout Voltage of 100% Duty Cycle Operation (SOT23-5) 0 50 100 150 200 250 300 350 400 450 500 0.0 0.3 0.6 0.9 1.2 1.5 Output Current (A) Package: SOT23-5 TA= 25°C L= MDT2520-CR1R0M (DCR= 80m _max) L= 1071AS-2R2 (DCR=60m _max) |
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