Datasheet LT3695 (Analog Devices) - 3

LT3695 Series
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VIN = 10V, VRUN/SS = 10V, unless otherwise noted. (Note 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Operating Voltage (Note 6) LT3695 VBD = 3.3V l 3.4 3.6 V VBD < 3V l 3.4 4.3 V LT3695-3.3 VOUT1,2 = 3.3V l 3.4 3.6 V LT3695-5 VOUT1,2 = 5V l 3.4 3.6 V VIN Overvoltage Lockout l 36 38 39.9 V Quiescent Current from VIN VRUN/SS = 0.2V VBD = 3.3V 0.01 0.5 μA LT3695 VRUN/SS = 10V, VBD = 3.3V, Not Switching l 35 60 μA VRUN/SS = 10V, VBD = 0V, Not Switching 90 160 μA LT3695-3.3 VRUN/SS = 10V, VOUT1,2 = 3.3V, Not Switching l 35 60 μA LT3695-5 VRUN/SS = 10V, VOUT1,2 = 5V, Not Switching l 35 60 μA Quiescent Current from BD Pin LT3695 VRUN/SS = 0.2V, VBD = 3.3V 0.01 0.5 μA VRUN/SS = 10V, VBD = 3.3V, Not Switching l 35 55 100 μA VRUN/SS = 10V, VBD = 0V, Not Switching 0 –5 μA Quiescent Current from OUT1,2 Pins LT3695-3.3 VRUN/SS = 0.2V 5 10 15 μA VRUN/SS = 10V, VOUT1,2 = 3.3V, Not Switching l 43 65 112 μA LT3695-5 VRUN/SS = 0.2V 5 10 15 μA VRUN/SS = 10V, VOUT1,2 = 5V, Not Switching l 43 65 112 μA Minimum BD Pin Voltage: LT3695 2.8 3 V Feedback Voltage: LT3695 792 800 808 mV l 785 800 815 mV FB Pin Bias Current: LT3695 FB Pin Voltage = 800mV l –5 –40 nA Reference Voltage Line Regulation 3.6V < VIN < 36V 0.001 0.005 %/V Output Voltage LT3695-3.3 3.27 3.3 3.33 V l 3.25 3.3 3.35 V LT3695-5 4.95 5 5.05 V l 4.925 5 5.075 V Error Amp gm IVC = ±1.5μA 430 μS Error Amp Voltage Gain 1300 V/V VC Source Current 50 μA VC Sink Current 50 μA VC Pin to Switch Current Gain 1.25 A/V VC Switching Threshold 0.4 0.6 0.8 V VC Clamp Voltage 2 V Switching Frequency RRT = 8.06k 1.98 2.2 2.42 MHz RRT = 29.4k 0.9 1.0 1.1 MHz RRT = 158k 225 250 275 kHz Minimum Switch Off-Time E- and I-Grades l 130 210 ns H-Grade l 130 250 ns Switch Current Limit (Note 7) SYNC = 0V 1.45 1.7 2 A SYNC = 3.3V or Clocked 1.18 1.4 1.66 A 3695fa 3