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LCYG Scheda tecnica(PDF) 5 Page - Linear Technology |
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LCYG Scheda tecnica(HTML) 5 Page - Linear Technology |
5 / 24 page LT3505 5 3505fc TYPICAL PERFORMANCE CHARACTERISTICS Undervoltage Lockout Switching Frequency Frequency Foldback, RT = 75.0k TEMPERATURE ( °C) 3.60 3.80 4.00 3505 G10 3.40 3.20 3.50 3.70 3.90 3.30 3.10 3.00 –25 –50 25 0 75 100 125 50 FB VOLTAGE (V) 0 0 0.1 0.2 0.3 0.4 0.2 0.4 0.6 0.8 3505 G12 0.5 0.6 0.1 0.3 0.5 0.7 TA = 25°C Soft-Start SHDN Pin Current Typical Minimum Input Voltage, (VOUT = 5V, fSW = 750kHz) SHDN PIN VOLTAGE (V) 0 0 0.2 0.6 0.8 1.0 2.0 1.4 0.50 1 1.25 0.4 1.6 1.8 1.2 0.25 0.75 1.50 1.75 2 TA = 25°C VSHDN (V) 0 30 40 50 16 3505 G14 20 10 25 35 45 15 5 0 4 2 8 6 12 14 18 10 20 TA = 25°C LOAD CURRENT (mA) 1 6.0 6.2 6.4 6.6 6.8 10 100 1000 3505 G15 5.8 5.6 5.4 5.2 7.0 7.2 TO START TO RUN TA = 25°C Typical Minimum Input Voltage, (VOUT = 3.3V, fSW = 750kHz) LOAD CURRENT (mA) 1 4.3 4.5 4.7 4.9 5.1 10 100 1000 4.1 3.9 3.7 3.5 5.3 5.5 TO START TA = 25°C TO RUN Typical Minimum Input Voltage, (VOUT = 3.3V, fSW = 2.2MHz) LOAD CURRENT (mA) 1 3.5 5.0 5.5 10 100 1000 4.5 4.0 TO START TO RUN TA = 25°C Typical Minimum Input Voltage, (VOUT = 5V, fSW = 2.2MHz) LOAD CURRENT (mA) 1 5.0 6.2 6.6 7.0 10 100 1000 5.8 5.4 6.0 6.4 6.8 5.6 5.2 TO START TO RUN TA = 25°C TEMPERATURE ( °C) 0 0.60 0.80 1.20 1.40 1.60 100 2.40 1.00 50 25 –50 –25 75 125 1.80 2.00 2.20 RT = 21k RT = 30.1k RT = 75.0k |
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