Datasheet LT3502, LT3502A (Analog Devices) - 4

LT3502/LT3502A
typical perForMance characteristics (TA = 25°C unless otherwise noted) LT3502A 3.3VOUT Efficiency LT3502A 5VOUT Efficiency LT3502 3.3VOUT Efficiency
90 90 100 12VIN 5V 80 80 90 IN 24VIN 70 70 12VIN 80 24VIN 70 24VIN 60 60 12VIN 60 50 50 50 40 40 40 EFFICIENCY (%) 30 EFFICIENCY (%) 30 EFFICIENCY (%) 30 20 20 20 10 10 10 0 0 0 0 0.1 0.2 0.3 0.4 0.5 0 0.1 0.2 0.3 0.4 0.5 0 0.1 0.2 0.3 0.4 0.5 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 3502 G01 3502 G02 3502 G03
LT3502A Maximum Load Current LT3502A Maximum Load Current LT3502 5VOUT Efficiency VOUT = 3.3V, L = 6.8µH VOUT = 5V, L = 10µH
100 1.0 1.0 90 12VIN 0.9 0.9 TYPICAL TYPICAL 80 0.8 0.8 24VIN 70 0.7 MINIMUM 0.7 MINIMUM 60 0.6 0.6 50 0.5 0.5 40 0.4 0.4 EFFICIENCY (%) 30 LOAD CURRENT (A) 0.3 LOAD CURRENT (A) 0.3 20 0.2 0.2 10 0.1 0.1 0 0 0 0 0.1 0.2 0.3 0.4 0.5 0 10 20 30 40 0 10 20 30 40 LOAD CURRENT (A) VIN (V) VIN (V) 3502 G04 3502 G05 3502 G06
LT3502 Maximum Load Current LT3502 Maximum Load Current VOUT = 3.3V, L = 15µH VOUT = 5V, L = 22µH Switch Voltage Drop
0.9 0.9 700 0.8 0.8 TYPICAL 600 TYPICAL 0.7 0.7 MINIMUM MINIMUM 500 0.6 0.6 –40°C 25°C 0.5 0.5 400 (mV) 125°C 0.4 0.4 V CE 300 LOAD CURRENT (A) 0.3 LOAD CURRENT (A) 0.3 200 0.2 0.2 100 0.1 0.1 0 0 0 0 10 20 30 40 0 10 20 30 40 0 0.2 0.4 0.6 0.8 1.0 VIN (V) VIN (V) SWITCH CURRENT (A) 3502 G07 3502 G08 3502 G09 3502fd 4 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 Applications Package Description Typical Application Related Parts