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LT3085IMS8E-PBF Datasheet(PDF) 6 Page - Linear Technology |
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LT3085IMS8E-PBF Datasheet(HTML) 6 Page - Linear Technology |
6 / 28 page LT3085 6 3085fb TYPICAL PERFORMANCE CHARACTERISTICS INPUT-TO-OUTPUT DIFFERENTIAL (V) 0 0 2 4 6 8 16 14 12 10 20 6 12 18 24 3085 G19 30 36 18 ILOAD = 1mA ILOAD = 500mA DEVICE IN CURRENT LIMIT LOAD CURRENT (A) 0 0.1 0.2 8 7 6 5 4 3 2 1 0 3085 G20 0.5 0.3 0.4 TJ = –50°C TJ = 25°C TJ = 125°C VIN = VCONTROL = 2V VIN = VOUT = 1V RTEST (Ω) 0 800 700 600 500 400 300 200 100 0 3085 G21 2k 1k VIN = 10V SET PIN = 0V VIN VOUT RTEST VIN = 20V VIN = 5V FREQUENCY (Hz) 0 40 100 10k 100k 100 10 1k 1M 3085 G22 20 60 80 30 90 10 50 70 VIN = VCONTROL = VOUT (NOMINAL) +2V RIPPLE = 50mVP–P COUT = 2.2μF CERAMIC CSET = 0.1μF CERAMIC ILOAD = 100mA ILOAD = 500mA FREQUENCY (Hz) 0 40 100 10k 100k 100 10 1k 1M 3085 G23 20 60 80 30 90 10 50 70 VIN = VOUT (NOMINAL) + 1V VCONTROL = VOUT (NOMINAL) +2V RIPPLE = 50mVP–P COUT = 2.2μF CERAMIC CSET = 0.1μF CERAMIC ILOAD = 100mA ILOAD = 500mA FREQUENCY (Hz) 10 0 10 30 40 50 100 70 100 10k 3085 G24 20 80 90 60 1k 100k 1M VIN = VCONTROL +2V VCONTROL = VOUT (NOMINAL) +2V RIPPLE = 50mVP–P COUT = 2.2μF CERAMIC CSET = 0.1μF CERAMIC ILOAD = 100mA ILOAD = 500mA VCONTROL Pin Current VCONTROL Pin Current Residual Output Voltage with Less Than Minimum Load Ripple Rejection - Single Supply Ripple Rejection - Dual Supply - VCONTROL Pin Ripple Rejection - Dual Supply - IN Pin FREQUENCY (Hz) 1 10k 10k 100k 100 10 1k 3085 G26 100 10 1k 0.1 1k 10 1.0 100 Noise Spectral Density VOUT 100μV/DIV TIME 1ms/DIV 3085 G27 VOUT = 1V RSET = 100k CSET = O.1μF COUT = 10μF ILOAD = 0.5A Output Voltage Noise FREQUENCY (Hz) 77 78 85 84 100 125 150 0 –50 –25 25 50 75 3085 G25 81 82 80 79 83 SINGLE SUPPLY OPERATION VIN = VOUT (NOMINAL) +2V RIPPLE = 50mVP–P, f = 120Hz ILOAD = 0.1A COUT = 2.2μF, CSET = 0.1μF Ripple Rejection (120Hz) |
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