LT1120A elecTrical characTerisTicsThe l denotes the specifications which apply over the full operatingtemperature range, otherwise specifications are at TJ = 25°C. PARAMETERCONDITIONSMINTYPMAXUNITSReference Reference Voltage 4.5V ≤ VIN ≤ 36V l 2.40 2.50 2.55 V Line Regulation 4.5V ≤ VIN ≤ 36V l 0.01 0.02 %/V Load Regulation –2.0mA ≤ IREF ≤ 2mA, VIN = 12V l 0.4 0.8 % Output Source Current VIN = 5V l 2 mA Output Sink Current VIN = 5V l 2 mA Regulator Supply Current VIN = 6V, IOUT ≤ 100µA l 30 40 µA VIN = 36V, IOUT ≤ 100µA l 40 50 µA VIN = 12V, IOUT = 125mA l 11 20 mA Output Current (VIN – VOUT) ≥ 1V, VIN ≥ 6V l 125 mA Load Regulation (VIN – VOUT) ≥ 1V, VIN ≥ 6V l 1 % Line Regulation 6V ≤ VIN ≤ 36V l 0.02 %/V Dropout Voltage IOUT = 100µA l 0.06 V IOUT = 125mA l 0.85 V Feedback Sense Voltage VIN = 12V l 2.38 2.5 2.57 V Feedback Bias Current l 50 nA Minimum Load Current VIN = 36V l 50 µA Short-Circuit Current VIN = 36V l 240 400 mA Comparator Offset Voltage VIN = 36V l 10 mV Bias Current VIN = 36V l 15 60 nA Gain ∆VOUT = 29V, RL = 20k l 1000 V/V Output Sink Current (Note 2) VIN = 4.5V l 5 10 mA Leakage Current VIN = 36V, V(Pin 7) = 36V l 8 µA Note 1: Stresses beyond those listed under Absolute Maximum Ratings Note 2: For TA ≤ –40°C output sink current drops to 2.5mA. may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. 1120afb 4 For more information www.linear.com/LT1120A 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 Typical Applications Package Description Revision History Related Parts
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