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LT1185IT Datasheet(PDF) 4 Page - Linear Technology |
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LT1185IT Datasheet(HTML) 4 Page - Linear Technology |
4 / 16 page 4 LT1185 CC HARA TERISTICS A TYPICALPERFOR CE Ripple Rejection vs Frequency Ground Pin Current INPUT-OUTPUT DIFFERENTIAL (V) 0 0 1 2 3 5 10 15 20 LT1185 • TPC01 25 4 5 30 TYPICAL TEST POINTS GUARANTEED LIMIT GUARANTEED LIMIT Internal Current Limit INPUT VOLTAGE (V) 0 8 10 12 15 25 LT1185 • TPC02 6 4 510 20 30 35 2 0 VOUT = 5V *DOES NOT INCLUDE REF CURRENT OR OUTPUT DIVIDER CURRENT ILOAD = 0 TJ = 25°C Quiescent Ground Pin Current* JUNCTION TEMPERATURE ( °C) –50 2.37 2.38 2.39 150 LT1185 • TPC03 2.36 2.35 2.33 0 50 100 2.34 2.41 2.40 –25 25 75 125 Feedback Pin Voltage Temperature Drift LOAD CURRENT (A) 0 80 100 120 4 LT1185 • TPC04 60 40 0 1 2 3 20 160 140 TJ = 25°C REGULATOR JUST AT DROPOUT POINT VIN – VOUT = 5V FREQUENCY (Hz) –20 –40 –60 –80 –100 100 10k 100k 1M LT1185 • TPC05 0 1k ALL OUTPUT VOLTAGES WITH 0.05 µF ACROSS R2 VOUT = 5V VIN – VOUT = 1.5V Load Transient Response TIME ( µs) 0 4 8 10 LT1185 • TPC06 26 12 14 16 0.1A tr,f ≤ 100ns COUT = 2.2µF, ESR = 1Ω COUT = 2.2µF, ESR = 2Ω VOUT = 5V IOUT = 1A 100mV ∆ILOAD Output Impedance FREQUENCY (Hz) 0.01 0.1 1 10 1M 10k 100k LT1183 • TPC07 0.001 1k OUTPUT IMPEDANCE IS SET BY OUTPUT CAPACITOR ESR IN THIS REGION VOUT = 5V IOUT = 1A COUT = 2.2µF |
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