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LTC3621-2 Datasheet(PDF) 5 Page - Linear Technology |
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LTC3621-2 Datasheet(HTML) 5 Page - Linear Technology |
5 / 18 page LTC3621/LTC3621-2 5 3621fc For more information www.linear.com/LTC3621 Typical perForMance characTerisTics Burst Mode Operation Pulse-Skipping Mode Operation Load Step Soft-Start Operation Efficiency vs Input Voltage Oscillator Frequency vs Temperature Efficiency vs Load Current (Burst Mode Operation) VIN Supply Current vs Input Voltage Efficiency vs Load at Dropout Operation TJ = 25°C, unless otherwise noted. INPUT VOLTAGE (V) 0 3 4 5 16 3621 G02 2 1 0 2 4 6 8 10 12 14 18 20 SLEEP SD 3621 G04 SW 5V/DIV 4µs/DIV VOUT AC-COUPLED 50mV/DIV IL 500mA/DIV VIN = 12V VOUT = 3.3V Burst Mode OPERATION IOUT = 50mA L = 2.2µH 3621 G07 RUN 5V/DIV PGOOD 2V/DIV VOUT 1V/DIV IL 0.5A/DIV 400µs/DIV 3621 G05 SW 5V/DIV VOUT AC-COUPLED 50mV/DIV IL 500mA/DIV VIN = 12V VOUT = 3.3V PULSE SKIP MODE IOUT = 10mA L = 2.2µH 4µs/DIV 3621 G06 ILOAD 500mA/DIV VOUT 100mV/DIV IL 500mA/DIV VIN = 12V VOUT = 3.3V ILOAD = 0.05A 40µs/DIV LOAD CURRENT (A) 3621 G01 100 90 80 70 60 50 40 30 20 10 0 0.001 0.1 1 0.01 VIN = 12V FREQUENCY = 2.25MHz VOUT = 2.5V VOUT = 3.3V VOUT = 5V LOAD CURRENT (A) 3621 G03 100 90 80 70 60 50 40 30 20 10 0 0.0001 0.001 0.1 1 0.01 VIN = 5V FREQUENCY = 2.25MHz FORCED CONTINUOUS MODE Burst Mode OPERATION TEMPERATURE (°C) –50 2.30 2.35 2.45 2.50 2.40 25 75 100 3621 G09 2.25 2.20 –25 0 50 125 150 2.15 2.05 2.00 2.10 INPUT VOLTAGE (V) 0 70 5 96 3621 G08 10 15 20 94 92 90 88 86 84 82 80 78 76 74 72 VOUT = 2.5V ILOAD = 10mA ILOAD = 1A |
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Similar Description - LTC3621-2_15 |
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