LTC3608 typical perForMance characteristics Maximum Valley Current Limit Maximum Valley Current Limit On-Time vs Temperaturevs VRNG Voltagevs RUN/SS Voltage 300 25 15 IION = 30µA VVON = 0V 250 12 20 200 9 150 15 ON-TIME (ns) 6 100 10 3 50 MAXIMUM VALLEY CURRENT LIMIT (A) MAXIMUM VALLEY CURRENT LIMIT (A) 0 5 0 –50 –25 0 25 50 75 100 125 0.5 0.6 0.7 0.8 0.9 1.0 1.65 1.90 2.15 2.40 2.65 2.90 3.15 3.40 TEMPERATURE (°C) VRNG VOLTAGE (V) RUN/SS VOLTAGE (V) 3608 G13 3608 G14 3608 G15 Maximum Valley Current Limit Input Voltage Maximum Valley Current Limit vs Temperaturevs Maximum Valley Currentin Foldback 20 18 15 16 15 14 10 12 10 10 5 8 5 MAXIMUM VALLEY CURRENT (A) 6 MAXIMUM VALLEY CURRENT LIMIT (A) MAXIMUM VALLEY CURRENT LIMIT (A) 0 4 0 –50 –25 0 25 50 75 100 125 4 8 12 16 20 0 0.1 0.2 0.3 0.4 0.5 0.6 TEMPERATURE (°C) INPUT VOLTAGE (V) VFB (V) 3608 G16 3608 G17 3608 G18 Feedback Reference Voltage vs TemperatureError Amplifier gm vs Temperature 0.62 2.0 1.8 0.61 1.6 0.60 (mS) g m 1.4 0.59 1.2 FEEDBACK REFERENCE VOLTAGE (V) 0.58 1.0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3608 G19 3608 G20 3608fc Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts