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LT3587 Datasheet(PDF) 5 Page - Linear Technology |
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LT3587 Datasheet(HTML) 5 Page - Linear Technology |
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5 / 24 page ![]() LT3587 5 3587fc TYPICAL PERFORMANCE CHARACTERISTICS Switching Frequency vs Temperature Switches VCESAT vs Current Switches Current Limit vs Temperature Specifications are at TA = 25°C unless otherwise noted. SW1 and SW2 Current Limit vs EN/SS1 Voltage TEMPERATURE (°C) –50 1.20 1.10 1.00 0.90 0.80 25 075 3587 G08 125 100 –25 50 VVIN = 3.6V SW CURRENT (A) 0 0.5 0.4 0.3 0.2 0.1 0 0.4 0.2 0.8 3587 G09 1.2 1 0.6 VVIN = 3.6V SW1 SW2 SW3 TEMPERATURE (°C) –50 1.2 1.0 0.4 0.6 0.8 0.2 0 25 075 3587 G10 125 100 –25 50 VVIN = 3.6V DUTY CYCLE = 60% SW1 SW2 SW3 DUTY CYCLE (%) 0 2.5 2.0 1.0 1.5 0.5 0 60 50 40 20 30 80 3587 G11 100 90 10 70 VVIN = 3.6V SW1 SW2 SW3 EN/SS1 VOLTAGE (V) 0.5 1.6 1.2 0.4 0.8 0 1.7 1.5 1.3 0.9 1.1 2.1 3587 G12 2.5 2.3 0.7 1.9 VVIN = 3.6V DUTY CYCLE = 60% SW1 SW2 Switches Current Limit vs Duty Cycle SW3 Current Limit vs EN/SS3 Voltage EN/SS3 VOLTAGE (V) 0.5 0.5 0.4 0.2 0.1 0.3 0 1.7 1.5 1.3 0.9 1.1 2.1 3587 G13 2.5 2.3 0.7 1.9 VVIN = 3.6V SW3 EN/SS1, EN/SS3 Pull-Up Current In Shutdown vs Temperature TEMPERATURE (°C) –50 1.50 1.25 0.75 1.00 0.50 25 075 3587 G16 125 100 –25 50 VVIN = 3.6V EN/SS1 = EN/SS3 = 0V Output Disconnects On Resistance vs Temperature (RDISC1, RDISC3) Output Disconnects Current Limit vs Temperature TEMPERATURE (°C) –50 14 12 6 8 10 4 2 25 075 3587 G14 125 100 –25 50 VVIN = 3.6V IVOUT1 = 50mA IVOUT3 = 20mA RDISC1 RDISC3 TEMPERATURE (°C) –50 200.0 167.5 102.5 135.0 70 25 075 3587 G15 125 100 –25 50 VVIN = 3.6V VVOUT1 = VVOUT3 = 15V IVOUT1 IVOUT3 |
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