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LTC3217EUD Datasheet(PDF) 4 Page - Linear Technology |
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LTC3217EUD Datasheet(HTML) 4 Page - Linear Technology |
4 / 12 page LTC3217 4 3217f VBAT Shutdown Current vs VBAT Voltage Oscillator Frequency vs Supply Voltage Efficiency vs VBAT VBAT VOLTAGE (V) 2.9 1.5 2.5 3.5 4.5 5.5 3.3 3.7 4.1 4.5 3217 G07 6.5 7.5 3.1 3.5 3.9 4.3 TA = 85°C TA = 25°C TA = –40°C VBAT SUPPLY VOLTAGE (V) 2.9 880 890 910 920 930 980 950 3.3 3.7 3.9 3217 G08 900 960 970 940 3.1 3.5 4.1 4.3 4.5 TA = –40°C TA = 25°C TA = 85°C VBAT (V) 3 0 10 30 40 50 100 70 3.4 3.8 4 3217 G09 20 80 90 60 3.2 3.6 4.2 4.4 TOTAL OUTPUT CURRENT PLED/PIN LED = 2015 HPW AOT 100mA 200mA 400mA 1.5x Mode CPO Output Ripple 2x Mode CPO Output Ripple Charge Pump Mode Switching and Input Current to Ground (400mA Load) VCPO 50mV/DIV AC COUPLED 500ns/DIV VBAT = 3.6V ICPO = 400mA CCPO = 2.2µF 3217 G10 VCPO 20mV/DIV AC COUPLED 500ns/DIV 3217 G11 VBAT = 3.6V ICPO = 400mA CCPO = 2.2µF VCPO 1V/DIV IVBAT 500mA/DIV 0 EN1 5V/DIV 1ms/DIV 1x NO LOAD 1x DROPOUT DROPOUT 1.5x 2x (5V) VIN = 3.6V 3217 G12 1x Mode Switch Resistance vs Temperature 1.5x Mode Charge Pump Open-Loop Output Resistance vs Temperature (1.5VBAT – VCPO)/ICPO TEMPERATURE ( °C) –40 0.35 0.40 0.45 0.50 0.55 0.60 0.65 –15 10 35 60 3217 G04 85 ICPO = 200mA VBAT = 3.3V VBAT = 3.9V VBAT = 3.6V TEMPERATURE ( °C) –40 2.0 2.2 2.4 2.6 2.8 3.0 3.2 –15 10 35 60 3217 G05 85 VBAT = 3V VCPO = 4.2V C2 = C3 = C4 = 2.2 µF 2x Mode Charge Pump Open-Loop Output Resistance vs Temperature (2VBAT – VCPO)/ICPO TEMPERATURE ( °C) –40 2.6 2.8 3.0 3.2 3.4 3.6 3.8 –15 10 35 60 3217 G06 85 VBAT = 3V VCPO = 4.8V C2 = C3 = C4 = 2.2 µF TYPICAL PERFOR A CE CHARACTERISTICS TA = 25°C unless otherwise noted. |
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