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LTC1550LCS8-4.1 Datasheet(PDF) 4 Page - Linear Technology |
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LTC1550LCS8-4.1 Datasheet(HTML) 4 Page - Linear Technology |
4 / 12 page 4 LTC1550L/LTC1551L TYPICAL PERFORMANCE CHARACTERISTICS Supply Current vs Temperature Oscillator Frequency vs Temperature OUTPUT VOLTAGE (V) –5 6.0 5.6 5.2 4.8 4.4 4.0 3.6 3.2 2.8 2.4 2.0 –1 1550L/51L G03 –4 –3 –2 0 IOUT = 20mA IOUT = 10mA IOUT = 5mA Minimum Required VCC vs VOUT and IOUT TEMPERATURE (˚C) –55 –35 –15 5 25 45 65 85 105 125 875 925 975 1550L/51L G01 825 775 725 675 VCC = 5V VOUT = –4.1V TEMPERATURE ( °C) 1550L/51L G02 VCC = 5V VOUT = –4.1V –55 –35 –15 5 25 45 65 85 105 125 5.0 4.5 4.0 3.5 3.0 2.5 Reference Voltage vs VCC + |VOUT| Start-Up Time vs Supply Voltage Maximum Output Current vs Supply Voltage Load Transient Response (See Figure 3, VCC = 5V) Line Transient Response (See Figure 3, IL = 10mA) 5V 0V – 4.1V VOUT SHDN 0.2ms/DIV 1550/51 G07 Startup Time (LTC1550L Shown) 0V 5V 0V POWER VALID 0mA 1ms/DIV 1550/51 G08 10mA VOUT 5mV/DIV AC COUPLED IOUT 4.75V 2ms/DIV 1550/51 G09 VOUT 5mV/DIV AC COUPLED 5.25V VCC SUPPLY VOLTAGE (V) 2.25 2.75 3.25 3.75 4.25 4.75 5.25 1550L/51L G04 80 70 60 50 40 30 20 10 0 TA = 25°C VOUT = –2V VOUT = –2.5V VOUT = –4.1V SUPPLY VOLTAGE (V) 2.25 2.75 3.25 3.75 4.25 4.75 5.25 1550L/51L G05 2.5 2.0 1.5 1.0 0.5 0 TA = 25°C VOUT = –2V RL = 390Ω VOUT = –4.1V RL = 820Ω 1.24 1.238 1.236 1.234 1.232 1.230 1.228 1.226 1.224 1.222 1.220 1.218 VCC + |VOUT| (V) 456789 10 4.5 5.5 6.5 7.5 8.5 9.5 1550L/51L G06 TA = 25°C |
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