Datasheet LT3050 (Analog Devices) - 4

LT3050 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. (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS
Dropout Voltage ILOAD = 1mA 110 150 mV VIN = VOUT(NOMINAL) (Notes 5, 6) ILOAD = 1mA l 220 mV ILOAD = 10mA 195 240 mV ILOAD = 10mA l 340 mV ILOAD = 50mA 280 330 mV ILOAD = 50mA l 450 mV ILOAD = 100mA 340 400 mV ILOAD = 100mA l 550 mV GND Pin Current ILOAD = 0mA l 45 90 μA VIN = VOUT(NOMINAL) + 0.6V (Notes 6, 7, 11) ILOAD = 1mA l 60 160 μA ILOAD = 10mA l 175 370 μA ILOAD = 50mA l 0.85 2 mA ILOAD = 100mA l 2.2 5.2 mA Quiescent Current in Shutdown VIN = 12V, VSHDN = 0V 0.17 1 μA ADJ Pin Bias Current (Notes 3, 12) VIN = 12V l 12.5 60 nA Output Voltage Noise COUT = 10μF, ILOAD = 100mA, VOUT = 600mV, 90 μVRMS BW = 10Hz to 100kHz Output Voltage Noise COUT = 10μF, CBYP = 0.01μF, ILOAD = 100mA, VOUT = 600mV 30 μVRMS BW = 10Hz to 100kHz Shutdown Threshold VOUT = Off to On l 0.7 1.5 V VOUT = On to Off l 0.3 0.6 V SHDN Pin Current (Note 13) VSHDN = 0V l 1 μA VSHDN = 45V l 0.9 3 μA Ripple Rejection VIN – VOUT = 2V, VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz, ILOAD = 100mA LT3050 70 85 dB LT3050-3.3 55 70 dB LT3050-5 51 66 dB FAULT Pin Logic Low Voltage VIN = 2.2V, FAULT Asserted, IFAULT = 100μA l 140 250 mV FAULT Pin Leakage Current FAULT = 5V, FAULT Not Asserted 0.01 1 μA Input Reverse Leakage Current VIN = –45V, VOUT = 0 l 300 μA Reverse Output Current (Note 14) VOUT = 1.2V, VIN = 0 0.2 10 μA Internal Current Limit (Note 3) VIN = 2.2V or VOUT(NOMINAL) + 0.6V, VOUT = 0V, IMAX = 0V 240 mA VIN = 2.2V or VOUT(NOMINAL) + 0.6V, ΔVOUT = –5% l 110 External Programmed Current Limit LT3050-3.3 (Notes 6, 8) 3.9V < VIN < 13.3V, RIMAX = 2.26k FAULT Pin Threshold (IFAULT) l 48.8 51.4 54 mA 3.9V < VIN < 13.3V, RIMAX = 1.5k FAULT Pin Threshold (IFAULT) l 73.6 77.5 81.4 mA 3.9V < VIN < 13.3V, RIMAX = 1.15k FAULT Pin Threshold (IFAULT) l 96 101 106 mA LT3050, LT3050-5 5.6V < VIN < 15V, RIMAX = 2.26k FAULT Pin Threshold (IFAULT) l 47.8 50.4 52.9 mA 5.6V < VIN < 15V, RIMAX = 1.5k FAULT Pin Threshold (IFAULT) l 72.1 75.9 79.7 mA 5.6V < VIN < 15V, RIMAX = 1.15k FAULT Pin Threshold (IFAULT) l 94.4 99.3 104.3 mA 3050fa 4 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS BLOCK DIAGRAM OPERATION APPLICATIONS INFORMATION PACKAGE DESCRIPTION REVISION HISTORY TYPICAL APPLICATION RELATED PARTS