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LTC3552 Datasheet(PDF) 7 Page - Linear Technology |
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LTC3552 Datasheet(HTML) 7 Page - Linear Technology |
7 / 24 page LTC3552 7 3552f 3552 G20 0.615 0.610 0.605 0.600 0.595 0.590 0.585 TEMPERATURE ( °C) –50 25 75 –25 0 50 100 125 VCC = 3.6V VCC (V) 1 500 450 400 350 300 250 200 46 3552 G21 2 3 57 MAIN SWITCH SYNCHRONOUS SWITCH JUNCTION TEMPERATURE ( °C) –50 550 500 450 400 350 300 250 200 150 100 25 75 3552 G22 –25 0 50 100 150 125 MAIN SWITCH SYNCHRONOUS SWITCH VCC = 3.6V VCC = 4.2V VCC = 2.7V Reference Voltage vs Temperature RDS(ON) vs VCC RDS(ON) vs Junction Temperature Efficiency vs Load Current Efficiency vs Load Current TYPICAL PERFOR A CE CHARACTERISTICS 3552 G26 LOAD CURRENT (mA) 1 100 90 80 70 60 50 40 10 100 1000 VCC = 3.6V VCC = 2.7V VCC = 4.2V VOUT = 2.5V, REGULATOR 1 Burst Mode OPERATION, MODE/SYNC = 3.6V NO LOAD ON OTHER REGULATOR CIRCUIT OF FIGURE 2 3552 G27 LOAD CURRENT (mA) 1 100 95 90 85 80 75 70 65 60 10 100 1000 VCC = 2.7V VCC = 4.2V VOUT = 1.5V, REGULATOR 1 Burst Mode OPERATION, MODE/SYNC = 3.6V NO LOAD ON OTHER REGULATOR CIRCUIT OF FIGURE 2 VCC = 3.6V Switching Regulator TA = 25°C Unless Otherwise Specified. Efficiency vs Load Current Load Regulation 3552 G23 LOAD CURRENT (mA) 1 100 95 90 85 80 75 70 65 60 10 100 1000 Burst Mode OPERATION PULSE-SKIPPING MODE VCC = 3.6V, VOUT = 1.8V NO LOAD ON OTHER REGULATOR; REGULATOR 1; CIRCUIT OF FIGURE 2 3552 G24 LOAD CURRENT (mA) 1 2.0 1.5 1.0 0.5 0 –0.5 –1.0 –1.5 –2.0 10 100 1000 Burst Mode OPERATION PULSE-SKIPPING MODE VCC = 3.6V, VOUT = 1.8V NO LOAD ON OTHER REGULATOR REGULATOR 1; CIRCUIT OF FIGURE 2 Line Regulation 3552 G25 VCC (V) 2 0.5 0.4 0.3 0.2 0.1 0 –0.1 –0.2 –0.3 –0.4 –0.5 4 6 35 VOUT = 1.8V IOUT = 200mA Efficiency vs Load Current 3552 G28 LOAD CURRENT (mA) 1 100 95 90 85 80 75 70 65 60 10 100 1000 VCC = 2.7V VCC = 4.2V VCC = 3.6V VOUT = 1.2V, REGULATOR 1 Burst Mode OPERATION, MODE/SYNC = 3.6V NO LOAD ON OTHER REGULATOR CIRCUIT OF FIGURE 2 |
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Similar Description - LTC3552_15 |
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