Datasheet LT3090 (Analog Devices) - 3

LT3090
e lecTrical characTerisTics The
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denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum IN Voltage ILOAD = 100mA –1.5 V (Note 11) ILOAD = 600mA l –1.9 –1.5 V SET Pin Current (ISET) VIN = –1.9V, ILOAD = 1mA, 49.5 50 50.5 µA –36V < VIN < –1.9V, 1mA < ILOAD < 600mA (Note 5) l 49 50 51 µA Output Offset Voltage VOS VIN = –1.9V, ILOAD = 1mA, –1 1 mV (VOUT – VSET) –36V < VIN < –1.9V, 1mA < ILOAD < 600mA (Note 5) l –2 2 mV Line Regulation: ΔISET/ΔVIN VIN = –1.9V to –36V, ILOAD = 1mA 1.5 nA/V Line Regulation: ΔVOS/ΔVIN VIN = –1.9V to –36V, ILOAD = 1mA 2.5 µV/V Load Regulation: ΔISET ILOAD = 1mA to 600mA 0.5 nA Load Regulation: ΔVOS ILOAD = 1mA to 600mA, VIN = –1.9V (Note 6) l 1.2 2.5 mV Output Regulation with SET Pin Voltage Change: ΔISET/ΔVSET VSET = 0V to –32V, VIN = –36V, ILOAD = 1mA l 0.2 1 nA/V ΔVOS/ΔVSET VSET = 0V to –32V, VIN = –36V, ILOAD = 1mA l 2.5 30 µV/V Dropout Voltage ILOAD = 1mA 185 230 mV VIN = VOUT(NOMINAL) ILOAD = 1mA l 270 mV (Note 7) ILOAD = 100mA 195 240 mV ILOAD = 100mA l 300 mV ILOAD = 600mA 300 360 mV ILOAD = 600mA l 450 mV GND Pin Current ILOAD = 10µA l 1 1.4 mA VIN = VOUT(NOMINAL) ILOAD = 1mA l 1.05 1.4 mA (Note 8) ILOAD = 100mA l 2.6 5 mA ILOAD = 600mA l 11.5 22.5 mA Error Amplifier RMS Output ILOAD = 600mA, BW = 10Hz to 100kHz, COUT = 4.7µF, CSET = 0.1µF 18 µVRMS Noise (Note 12) Reference Current RMS BW = 10Hz to 100kHz 10 nARMS Output Noise (Note 12) Ripple Rejection VRIPPLE = 500mVP-P, fRIPPLE = 120Hz, ILOAD = 100mA, COUT = 4.7µF, CSET = 0.47µF 70 85 dB VIN – VOUT = –1.5V (Avg) VRIPPLE = 50mVP-P, fRIPPLE = 10kHz, ILOAD = 600mA, COUT = 4.7µF, CSET = 0.47µF 50 dB VRIPPLE = 50mVP-P, fRIPPLE = 1MHz, ILOAD = 600mA, COUT = 4.7µF, CSET = 0.47µF 20 dB SHDN Pin Turn-ON Positive SHDN Rising l 1.14 1.23 1.32 V Threshold Negative SHDN Rising (in Magnitude) l –1.36 –1.27 –1.18 V SHDN Pin Hysteresis Positive SHDN Hysteresis 180 mV Negative SHDN Hysteresis 190 mV SHDN Pin Current VSHDN = 0V ±1 µA (Note 10) VSHDN = 15V 21 30 µA VSHDN = –15V –7 –4.5 µA Quiescent Current in VIN = –6V, VSHDN = 0V 0.1 1 µA Shutdown VIN = –6V, VSHDN = 0V l 10 µA Internal Current Limit VIN = –1.9V, VOUT = 0V l 650 750 850 mA (Note 13) VIN = –13V, VOUT = 0V 350 mA VIN = –36V, VOUT = 0V l 20 35 60 mA VIN = –1.9V, ΔVOUT < 10mV l 630 730 830 mA Programmable Current Programming Scale Factor: –36V < VIN < –1.9V, IOUT > 50mA (Note 14) 10 A•kΩ Limit Max IOUT: VIN = –1.9V, RILIM = 20k l 460 500 540 mA Max IOUT: VIN = –1.9V, RILIM = 100k l 85 100 115 mA 3090fa For more information www.linear.com/LT3090 3