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LTC3862-2 Datasheet(PDF) 5 Page - Linear Technology |
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LTC3862-2 Datasheet(HTML) 5 Page - Linear Technology |
5 / 38 page LTC3784 5 3784fb For more information www.linear.com/LTC3784 Typical perForMance characTerisTics Load Step Burst Mode Operation Load Step Forced Continuous Mode Load Step Pulse-Skipping Mode Efficiency and Power Loss vs Output Current Efficiency and Power Loss vs Output Current Efficiency vs Load Current Inductor Currents at Light Load Soft Start-Up Regulated Feedback Voltage vs Temperature OUTPUT CURRENT (A) 40 50 60 70 80 10 3784 G01 30 20 10 0 90 100 10 100 1000 1 0.1 10000 0.01 0.1 1 BURST EFFICIENCY PULSE-SKIPPING EFFICIENCY FORCED CONTINUOUS MODE EFFICIENCY BURST LOSS PULSE-SKIPPING LOSS FORCED CONTINUOUS MODE LOSS VIN = 12V VOUT = 24V FIGURE 10 CIRCUIT OUTPUT CURRENT (A) 40 50 60 70 80 3784 G02 30 20 10 0 90 100 10 100 1000 1 0.1 10000 0.01 0.1 1 10 BURST EFFICIENCY BURST LOSS VIN = 12V VOUT = 24V Burst Mode OPERATION FIGURE 10 CIRCUIT 0.0001 0.001 0.00001 INPUT VOLTAGE (V) 0 90 92 94 96 5 10 15 20 98 100 91 93 95 97 99 25 3784 G03 VOUT = 12V VIN = 12V ILOAD = 2A FIGURE 10 CIRCUIT VOUT = 24V VOUT 500mV/DIV INDUCTOR CURRENT 5A/DIV LOAD STEP 5A/DIV VIN = 12V VOUT = 24V LOAD STEP FROM 100mA TO 5A FIGURE 10 CIRCUIT 200µs/DIV 3784 G04 VOUT 500mV/DIV INDUCTOR CURRENT 5A/DIV LOAD STEP 5A/DIV VIN = 12V VOUT = 24V LOAD STEP FROM 100mA TO 5A FIGURE 10 CIRCUIT 200µs/DIV 3784 G05 VOUT 500mV/DIV INDUCTOR CURRENT 5A/DIV LOAD STEP 5A/DIV VIN = 12V VOUT = 24V LOAD STEP FROM 100mA TO 5A FIGURE 10 CIRCUIT 200µs/DIV 3784 G06 PULSE- SKIPPING MODE Burst Mode OPERATION 5A/DIV FORCED CONTINUOUS MODE VIN = 12V VOUT = 24V ILOAD = 200µA FIGURE 10 CIRCUIT 5µs/DIV 3784 G07 0V VOUT 5V/DIV VIN = 12V VOUT = 24V FIGURE 10 CIRCUIT 2ms/DIV 3784 G08 TEMPERATURE (°C) –60 1.209 15 3784 G09 1.200 1.194 –35 –10 40 1.191 1.188 1.212 1.206 1.203 1.197 65 90 140 115 TA = 25°C unless otherwise noted. |
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Similar Description - LTC3862-2 |
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