Datasheet LT1083, LT1084, LT1085 (Analog Devices) - 5

LT1083/LT1084/LT1085
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
Reference Voltage IOUT = 10mA, TJ = 25°C, (VIN – VOUT) = 3V 1.238 1.250 1.262 V 10mA ≤ IOUT ≤ IFULL_LOAD 1.5V ≤ (V l IN – VOUT) ≤ 25V (Notes 4, 6, 7) 1.225 1.250 1.270 V Line Regulation ILOAD = 10mA, 1.5V ≤ (VIN – VOUT) ≤ 15V, TJ = 25°C (Notes 2, 3) 0.015 0.2 % l 0.035 0.2 % M-Grade: 15V ≤ (VIN – VOUT) ≤ 35V (Notes 2, 3) l 0.05 0.5 % C-, I-Grades: 15V ≤ (VIN – VOUT) ≤ 30V (Notes 2, 3) l 0.05 0.5 % Load Regulation (VIN – VOUT) = 3V, 10mA ≤ IOUT ≤ IFULL_LOAD, TJ = 25°C 0.1 0.3 % (Notes 2, 3, 4, 6) l 0.2 0.4 % Dropout Voltage ∆VREF = 1%, IOUT = IFULL_LOAD (Notes 5, 6, 8) l 1.3 1.5 V Current Limit LT1083 (VIN – VOUT) = 5V l 8.0 9.5 A (VIN – VOUT) = 25V l 0.4 1.0 A LT1084 (V l IN – VOUT) = 5V 5.5 6.5 A (V l IN – VOUT) = 25V 0.3 0.6 A LT1085 (V l IN – VOUT) = 5V 3.2 4.0 A l (VIN – VOUT) = 25V 0.2 0.5 A Minimum Load Current (VIN – VOUT) = 25V l 5 10 mA Thermal Regulation TA = 25°C, 30ms Pulse LT1083 0.002 0.010 %/W LT1084 0.003 0.015 %/W LT1085 0.004 0.020 %/W Ripple Rejection f = 120Hz, CADJ = 25µF, COUT = 25µF Tantalum l 60 75 dB IOUT = IFULL_LOAD, (VIN – VOUT) = 3V (Notes 6, 7, 8) Adjust Pin Current TJ = 25°C 55 µA l 120 µA Adjust Pin Current Change 10mA ≤ IOUT ≤ IFULL_LOAD, 1.5V ≤ (VIN – VOUT) ≤ 25V (Note 6) l 0.2 5 µA Temperature Stability l 0.5 % Long-Term Stability TA = 125°C, 1000 Hrs 0.3 1 % RMS Output Noise (% of VOUT) TA = 25°C, 10Hz = ≤ f ≤ 10kHz 0.003 % Thermal Resistance Junction-to-Case Control Circuitry/Power Transistor LT1083 K Package 0.6/1.6 °C/W P Package 0.5/1.6 °C/W LT1084 K Package 0.75/2.3 °C/W P Package 0.65/2.3 °C/W T Package 0.65/2.7 °C/W LT1085 K Package 0.9/3.0 °C/W M, T Package 0.7/3.0 °C/W 108345fh For more information www.linear.com/LT1083 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Block Diagram Applications Information Typical Application Package Description Revision History Typical Applications Related Parts