Datasheet LT3514 (Analog Devices) - 6

LT3514
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Input Voltage Undervoltage Input Quiescent Current vs Input Lockout VIN Pin Current Voltage
3.6 10 40 3.4 9 35 8 3.2 30 7 3.0 25 6 2.8 (µA) 5 20 UVLO (V) I VIN 2.6 4 15 3 2.4 10 2 INPUT QUIESCENT CURRENT (mA) 2.2 5 ALL SS = 2V 1 ALL SS = 0V 2.0 0 0 –50 –25 0 25 50 75 100 125 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0 5 10 15 20 25 30 35 40 45 TEMPERATURE (°C) VEN/UVLO (V) INPUT VOLTAGE (V) 3514 G13 3514 G14 3514 G15
Switching Frequency FB Voltage vs RUN/SS Soft Start Current vs Temperature
900 0 1.20 RT = 18.2k 800 –0.2 1.15 700 –0.4 1.10 –0.6 600 –0.8 1.05 500 (µA) TAGE (mV) –1.0 1.00 400 I RUN/SS –1.2 0.95 FB VOL 300 –1.4 FREQUENCY (MHz) 200 0.90 –1.6 100 –1.8 0.85 0 –2.0 0.80 0 200 400 600 800 1000 1200 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 150 RUN/SS VOLTAGE (mV) TEMPERATURE (°C) TEMPERATURE (°C) 3514 G16 3514 G17 3514 G18
Switch and Diode Current Limit, Switch Voltage Drop Channel 3 Switch and Diode Current Limit
700 4.0 2.0 CHANNELS 1, 4 3.8 1.9 600 3.6 1.8 500 3.4 1.7 3.2 400 1.6 TAGE DROP (mV) CHANNELS 1, 4 3.0 1.5 300 CHANNEL 3 2.8 1.4 200 CURRENT LIMIT (A) 2.6 CURRENT LIMIT (A) 1.3 SWITCH VOL 2.4 1.2 100 2.2 1.1 0 2.0 1.0 0 500 1000 1500 2000 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 SWITCH CURRENT (mA) TEMPERATURE (°C) TEMPERATURE (°C) 3514 G19 3514 G20 3514 G21 3514fa 6 For more information www.linear.com/LT3514 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