Datasheet LT3071 (Analog Devices) - 3

LT3071
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. COUT = 15µF (Note 9), VIN = VOUT + 0.3V (Note 5), VBIAS = 2.5V unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
Regulated Output Voltage Margining MARGA = 1.2V l 9.5 10 10.5 % (Note 3) MARGA = 0V l –10.5 –10 –9.5 % Line Regulation to VIN VOUT = 0.8V, ∆VIN = 1.05V to 2.7V, VBIAS = 3.3V, IOUT = 10mA l 1.0 mV VOUT = 1.8V, ∆VIN = 2.05V to 2.7V, VBIAS = 3.3V, IOUT = 10mA l 1.0 mV Line Regulation to VBIAS VOUT = 0.8V, ∆VBIAS = 2.2V to 3.6V, VIN = 1.1V, IOUT = 10mA l 2.0 mV VOUT = 1.8V, ∆VBIAS = 3.25V to 3.6V, VIN = 2.1V, IOUT = 10mA l 1.0 mV Load Regulation, VBIAS = 2.5V, VIN = 1.05V, VOUT = 0.8V –1.5 –3.0 mV ∆IOUT = 10mA to 5A l –5.5 mV VBIAS = 2.5V, VIN = 1.25V, VOUT = 1.0V –2 –4.0 mV l –7.5 mV VBIAS = 3.3V, VIN = 1.45V, VOUT = 1.2V –2 –4.0 mV l –7.5 mV VBIAS = 3.3V, VIN = 1.75V, VOUT = 1.5V –2.5 –5.0 mV l –9.0 mV VBIAS = 3.3V, VIN = 2.05V, VOUT = 1.8V –3 –7.0 mV l –13 mV Dropout Voltage, IOUT = 1A, VOUT = 1V l 20 35 mV VIN = VOUT(NOMINAL) (Note 6) IOUT = 2.5A, VOUT = 1V 50 65 mV l 85 mV IOUT = 5A, VOUT = 1V 85 120 mV l 150 mV SENSE Pin Current VIN = 1.1V, VSENSE = 0.8V l 35 50 65 µA VBIAS = 3.3V, VIN = 2.1V, VSENSE = 1.8V l 200 300 400 µA Ground Pin Current, IOUT = 10mA l 0.65 1.1 1.8 mA VIN = 1.3V, VOUT = 1V IOUT = 5A l 0.9 1.35 2.3 mA BIAS Pin Current in Nap Mode EN = Low l 120 200 320 µA BIAS Pin Current, IOUT = 10mA l 0.75 1.08 1.5 mA VIN = 1.3V, VOUT = 1V IOUT = 100mA l 1.25 1.8 2.4 mA IOUT = 500mA l 2.0 3.0 4.0 mA IOUT = 1A l 2.6 3.8 5.0 mA IOUT = 2.5A l 3.5 5.2 7.0 mA IOUT = 5A l 4.5 6.9 10.0 mA Current Limit (Note 5) VIN – VOUT < 0.3V, VBIAS = 3.3V l 5.1 6.4 7.7 A VIN – VOUT = 1.0V, VBIAS = 3.3V l 3.2 4.5 5.8 A VIN – VOUT = 1.7V, VBIAS = 3.3V l 1.2 2.5 4.3 A IMON Full-Scale Output Current (Note 3) IOUT = 5A, VIN – VOUT = 0.3V, VOUT = 0.8V, 1.8V l 1.6 2.0 2.4 mA IMON/IOUT Scale (Note 3) 1A ≤ IOUT ≤ 5A, VIN – VOUT = 0.3V, VOUT = 0.8V, 1.8V l 340 400 460 µA/A Reverse Output Current (Note 8) VIN = 0V, VOUT = 1.8V l 300 450 µA PWRGD VOUT Threshold Percentage of VOUT(NOMINAL), VOUT Rising l 87 90 93 % Percentage of VOUT(NOMINAL), VOUT Falling l 82 85 88 % PWRGD VOL IPWRGD = 200µA (Fault Condition) l 50 150 mV VBIAS Undervoltage Lockout VBIAS Rising l 1.1 1.55 2.1 V VBIAS Falling l 0.9 1.4 1.7 V VIN-VOUT Servo Voltage by VIOC l 250 300 350 mV VIOC Output Current VIN = VOUT(NOMINAL) + 150mV, Sourcing Out of the Pin l 160 235 310 µA VIN = VOUT(NOMINAL) + 450mV, Sinking Into the Pin l 170 255 340 µA VIL Input Threshold (Logic-0 State), Input Falling l 0.25 V VO2, VO1, VO0 3071fc For more information www.linear.com/LT3071 3 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Revision History Typical Application Related Parts