Datasheet LTC3546 (Analog Devices) - 8

LTC3546
TYPICAL PERFORMANCE CHARACTERISTICS OUT2 Efficiency vs VIN OUT2 Efficiency vs VIN OUT1 Load Step
100 100 98 98 96 96 VOUT 94 94 100mV/DIV 600mA 92 400mA 92 90 90 ILOAD 88 88 1A/DIV EFFICIENCY (%) EFFICIENCY (%) 2A 86 3A 86 84 84 100µs/DIV 3546 G22 82 SW1D CONNECTED TO SW2 SW1D CONNECTED TO SW1 82 VOUT = 2.5V VOUT = 2.5V SW1D CONNECTED TO SW1 80 80 VIN = 3.6V 2.25 2.75 3.25 3.75 4.25 4.75 5.25 2.25 2.75 3.25 3.75 4.25 4.75 5.25 VOUT = 1.2V VIN (V) VIN (V) ILOAD = 200mA TO 1.9A 3546 G20 3546 G21
OUT1 Load Step OUT2 Load Step OUT2 Load Step
VOUT 100mV/DIV VOUT VOUT 100mV/DIV 100mV/DIV ILOAD ILOAD 250mA/DIV 1A/DIV ILOAD 1A/DIV 100µs/DIV 3546 G23 100µs/DIV 3546 G24 100µs/DIV 3546 G25 SW1D CONNECTED TO SW2 SW1D CONNECTED TO SW2 SW1D CONNECTED TO SW1 VIN = 3.6V VIN = 3.6V VIN = 3.6V VOUT = 1.2V VOUT = 1.8V VOUT = 1.8V ILOAD = 100mA TO 0.9A ILOAD = 300mA TO 2.9A ILOAD = 200mA TO 1.9A
OUT1 Efficiency vs Frequency OUT1 Efficiency vs Frequency OUT2 Efficiency vs Frequency
95 95 95 94 94 94 93 93 93 92 92 92 91 91 91 90 90 90 89 89 89 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 88 88 88 SW1D CONNECTED TO SW1 SW1D CONNECTED TO SW2 SW1D CONNECTED TO SW2 87 V 87 87 IN = 3.6V VIN = 3.6V VIN = 3.6V 86 VOUT = 1.8V V 86 OUT = 1.8V V 86 OUT = 2.5V ILOAD = 400mA ILOAD = 200mA ILOAD = 600mA 85 85 85 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 3546 G26 3546 G27 3546 G28 3546fd 8 For more information www.linear.com/3546