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LT1576CS8-5 Datasheet(PDF) 4 Page - Linear Technology |
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LT1576CS8-5 Datasheet(HTML) 4 Page - Linear Technology |
4 / 28 page 4 LT1576/LT1576-5 TYPICAL PERFORMANCE CHARACTERISTICS JUNCTION TEMPERATURE ( °C) –50 4 3 2 1 0 100 1576 G04 –25 0 25 50 75 125 AT 2.44V STANDBY THRESHOLD (CURRENT FLOWS OUT OF PIN) Shutdown Pin Bias Current JUNCTION TEMPERATURE ( °C) –50 180 160 140 120 100 80 60 40 20 0 100 1576 G05 –25 0 25 50 75 125 CURRENT REQUIRED TO FORCE SHUTDOWN (FLOWS OUT OF PIN). AFTER SHUTDOWN, CURRENT DROPS TO A FEW µA Shutdown Pin Bias Current JUNCTION TEMPERATURE ( °C) –50 100 1576 G06 050 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 –25 25 75 125 START-UP SHUTDOWN Shutdown Supply Current INPUT VOLTAGE (V) 0 25 20 15 10 5 0 20 1576 G08 5 10 15 25 VSHDN = 0V FREQUENCY (Hz) 2000 1500 1000 500 0 –500 200 150 100 50 0 –50 10 1k 10k 1M 1576 G09 100 100k GAIN PHASE ERROR AMPLIFIER EQUIVALENT CIRCUIT ROUT 570k COUT 2.4pF VC RLOAD = 50Ω VFB 1 × 10 –3 ) ( Error Amplifier Transconductance JUNCTION TEMPERATURE ( °C) –50 2.46 2.45 2.44 2.43 2.42 2.41 2.40 25 75 1576 G07 –25 0 50 100 125 ON STANDBY Shutdown Thresholds Standby Thresholds Switch Drop JUNCTION TEMPERATURE ( °C) –50 1.23 1.22 1.21 1.20 1.19 100 1576 G03 –25 0 25 50 75 125 SWITCH CURRENT (A) 0 0.5 0.4 0.3 0.2 0.1 0 0.25 0.50 0.75 1.00 1576 G01 1.25 1.50 125 °C –20 °C 25 °C Feedback Pin Voltage Switch Peak Current Limit DUTY CYCLE (%) 0 2.5 2.0 1.5 1.0 0.5 0 80 1576 G02 20 40 60 100 TYPICAL MINIMUM |
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Similar Description - LT1576CS8-5 |
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