Datasheet LT1512 (Analog Devices) - 4

LT1512
Typical perForMance characTerisTics Switch Saturation Voltage Switch Current Limit Minimum Input Voltage vs Switch Current vs Duty Cycle vs Temperature
1.0 3.0 3.0 150°C 0.9 100°C 25°C 2.5 2.8 0.8 TAGE (V) 0.7 25°C AND 2.0 125°C 2.6 0.6 –55°C TION VOL 0.5 1.5 2.4 –55°C TURA 0.4 2.2 0.3 1.0 INPUT VOLTAGE (V) 0.2 SWITCH CURRENT LIMIT (A) SWITCH SA 0.5 2.0 0.1 0 0 1.8 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0 10 20 30 40 50 60 70 80 90 100 –50 –25 0 25 50 75 100 125 150 SWITCH CURRENT (A) DUTY CYCLE (%) TEMPERATURE (°C) 1512 G01 1512 G02 1512 G03
Minimum Peak-to-Peak Feedback Input Current Negative Feedback Input Current Synchronization Voltage vs Temp vs Temperature vs Temperature
) 3.0 800 0 P-P fSYNC = 700kHz V 700 FB = VREF 2.5 –10 600 2.0 500 –20 1.5 400 300 –30 1.0 200 –40 0.5 FEEDBACK INPUT CURRENT (nA) 100 NEGATIVE FEEDBACK INPUT CURRENT (µA) MINIMUM SYNCHRONIZATION VOLTAGE (V 0 0 –50 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1512 G04 1512 G05 1512 G06 1512fc 4 For more information www.linear.com/LT1512 Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Related Parts