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LT1373IS8 Datasheet(PDF) 4 Page - Linear Technology |
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LT1373IS8 Datasheet(HTML) 4 Page - Linear Technology |
4 / 12 page 4 LT1373 Shutdown Delay and Threshold vs Temperature Error Amplifier Output Current vs Feedback Pin Voltage TEMPERATURE ( °C) –50 0 2 6 8 10 20 14 0 50 75 LT1373 • G04 4 16 18 12 0 0.2 0.6 0.8 1.0 2.0 1.4 0.4 1.6 1.8 1.2 –25 25 100 125 150 SHUTDOWN THRESHOLD SHUTDOWN DELAY TEMPERATURE ( °C) –50 0 0.5 1.0 1.5 2.0 050 100 150 LT1373 • G05 2.5 3.0 –25 25 75 125 fSYNC = 330kHz Minimum Synchronization Voltage vs Temperature FEEDBACK PIN VOLTAGE (V) 100 –75 –50 –25 75 25 –0.1 0.1 50 0 –0.3 –0.2 VREF –55 °C 125 °C 25 °C LT1373 • G06 S/S Pin Input Current vs Voltage S/S PIN VOLTAGE (V) –1 1 3 5 7 LT1373 • G07 –1 –3 0 2 4 –2 –4 –5 1 3 5 08 2 4 6 9 VIN = 5V Error Amplifier Transconductance vs Temperature Switching Frequency vs Feedback Pin Voltage FEEDBACK PIN VOLTAGE (V) 0 70 90 110 0.8 LT1373 • G08 50 30 60 80 100 40 20 10 0.2 0.4 0.6 0.1 0.9 0.3 0.5 0.7 1.0 TEMPERATURE ( °C) –50 0 200 500 0 50 75 LT1373 • G09 100 400 300 –25 25 100 125 150 gm = ∆I (VC) ∆V (FB) VC Pin Threshold and High Clamp Voltage vs Temperature Negative Feedback Input Current vs Temperature Feedback Input Current vs Temperature TEMPERATURE ( °C) –50 0.4 0.6 1.0 1.2 1.4 2.4 1.8 0 50 75 LT1373 • G10 0.8 2.0 2.2 1.6 –25 25 100 125 150 VC HIGH CLAMP VC THRESHOLD TEMPERATURE ( °C) –50 200 250 300 150 LT1373 • G11 150 100 0 0 50 100 50 400 350 –25 25 75 125 VFB = VREF TEMPERATURE ( °C) –50 –20 –12 –14 0 0 50 75 LT1373 • G12 –16 –18 –4 –6 –2 –8 –10 –25 25 100 125 150 VNFB = VNFR TYPICAL PERFOR A CE CHARACTERISTICS |
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