Datasheet LTC3388-1, LTC3388-3 (Analog Devices) - 7

LTC3388-1/LTC3388-3
TYPICAL PERFORMANCE CHARACTERISTICS Efficiency vs ILOAD, L = 22µH Efficiency vs ILOAD, L = 100µH (LTC3388-1) (LTC3388-1)
100 100 VIN = 3.0V VIN = 3.0V 90 90 80 80 70 70 60 60 50 50 40 40 EFFICIENCY (%) EFFICIENCY (%) 30 30 V 20 OUT = 2.5V VOUT = 2.5V V 20 OUT = 1.8V VOUT = 1.8V 10 VOUT = 1.5V 10 VOUT = 1.5V VOUT = 1.2V VOUT = 1.2V 0 0 1µ 10µ 100µ 1m 10m 1µ 10µ 100µ 1m 10m LOAD CURRENT (A) LOAD CURRENT (A) 338813 G22 338813 G23
Efficiency vs VIN for ILOAD = 50mA, Efficiency vs VIN for ILOAD = 50mA, L = 22µH (LTC3388-1) L = 100µH (LTC3388-1)
100 100 VOUT = 2.5V VOUT = 2.5V VOUT = 1.8V VOUT = 1.8V 95 VOUT = 1.5V 95 VOUT = 1.5V VOUT = 1.2V VOUT = 1.2V 90 90 85 85 EFFICIENCY (%) 80 EFFICIENCY (%) 80 75 75 70 70 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 20 VIN (V) VIN (V) 338813 G24 338813 G25
Efficiency vs VIN for VOUT = 1.8V, Efficiency vs VIN for VOUT = 1.8V, L = 22µH (LTC3388-1) L = 100µH (LTC3388-1)
100 100 90 90 80 80 70 70 60 60 EFFICIENCY (%) EFFICIENCY (%) 50 ILOAD = 50mA 50 ILOAD = 50mA ILOAD = 100µA ILOAD = 100µA I I 40 LOAD = 50µA LOAD = 50µA I 40 LOAD = 30µA ILOAD = 30µA ILOAD = 10µA ILOAD = 10µA 30 30 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 20 VIN (V) VIN (V) 338813 G26 338813 G27 338813fa For more information www.linear.com/LTC3388 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Related Parts