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LT3430 Datasheet(PDF) 4 Page - Linear Technology |
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LT3430 Datasheet(HTML) 4 Page - Linear Technology |
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4 / 28 page  LT3430/LT3430-1 4 34301fa DUTY CYCLE (%) 6 5 4 3 2 20 40 60 80 3430 G01 100 0 GUARANTEED MINIMUM TJ = 25°C TYPICAL JUNCTION TEMPERATURE ( °C) –50 1.224 1.229 1.234 25 75 3430 G02 1.219 1.214 –25 0 50 100 125 1.209 1.204 1.5 2.0 1.0 0.5 0 VOLTAGE CURRENT JUNCTION TEMPERATURE ( °C) –50 250 200 150 100 12 6 0 25 75 3430 G03 –25 0 50 100 125 CURRENT REQUIRED TO FORCE SHUTDOWN (FLOWS OUT OF PIN). AFTER SHUTDOWN, CURRENT DROPS TO A FEW µA AT 2.38V STANDBY THRESHOLD (CURRENT FLOWS OUT OF PIN) JUNCTION TEMPERATURE ( °C) –50 50 100 3430 G04 0 25 75 2.4 2.0 1.6 1.2 0.8 0.4 0 –25 125 LOCKOUT START-UP SHUTDOWN INPUT VOLTAGE (V) 0 3430 G05 10 20 30 40 50 60 40 35 30 25 20 15 10 5 0 VSHDN = 0V TA = 25°C SHUTDOWN VOLTAGE (V) 0 0 50 100 150 200 250 300 0.1 0.2 0.3 0.4 3430 G06 0.5 VIN = 60V VIN = 15V TA = 25°C JUNCTION TEMPERATURE ( °C) 3430 G07 2500 2000 1500 1000 500 0 –50 50 100 0 25 75 –25 125 FREQUENCY (Hz) 3000 2500 2000 1500 1000 500 200 150 100 50 0 –50 100 10k 100k 10M 3430 G08 1k 1M GAIN PHASE ERROR AMPLIFIER EQUIVALENT CIRCUIT ROUT 200k COUT 12pF VC RLOAD = 50Ω TA = 25°C VFB 2 • 10 –3 ) ( VFB (V) 0 300 400 600 TA = 25°C 500 3430 G09 200 100 0 0.5 1.0 1.5 SWITCHING FREQUENCY FB PIN CURRENT 3430 3430-1 TYPICAL PERFORMANCE CHARACTERISTICS Switch Peak Current Limit FB Pin Voltage and Current ⎯S⎯H⎯D⎯N Pin Bias Current Lockout and Shutdown Threshold Shutdown Supply Current Shutdown Supply Current Error Amplifier Transconductance Error Amplifier Transconductance Frequency Foldback |
Similar Part No. - LT3430_15 |
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Similar Description - LT3430_15 |
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