Datasheet LT3514 (Analog Devices) - 7

LT3514
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Switch Current Limit, Channels 1 Switch Current Limit, Channel 3 Switch Beta, Channel 3 and 4
4.0 60 2.0 3.8 58 1.9 3.6 56 1A 1.8 3.4 54 1.7 3.2 52 1.6 A 3.0 BET 50 2A 1.5 2.8 48 1.4 2.6 46 1.3 SWITCH CURRENT LIMIT (A) 2.4 44 SWITCH CURRENT LIMIT (A) 1.2 2.2 42 1.1 2.0 40 1.0 0 20 40 60 80 100 –50 –25 0 25 50 75 100 125 150 0 20 40 60 80 100 DUTY CYCLE (%) TEMPERATURE (°C) DUTY CYCLE (%) 3514 G22 3514 G23 3514 G24
Switch Beta, Channels 1 and 4 Minimum On-Time
70 120 65 110 0.5A 100 60 A 90 BET 55 80 ON-TIME (ns) 50 1A 70 45 60 40 50 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3514 G25 3514 G26
Feedback Voltage Power Good Threshold
805 740 804 RISING 720 803 802 700 TAGE (mV) 801 680 800 FALLING 799 660 798 THRESHOLD (mV) FEEDBACK VOL 640 797 620 796 795 600 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3514 G27 3514 G28 3514fa For more information www.linear.com/LT3514 7 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts