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LT1513 Datasheet(PDF) 3 Page - Linear Technology |
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LT1513 Datasheet(HTML) 3 Page - Linear Technology |
3 / 16 page 3 LT1513/LT1513-2 sn1513 1513fas ELECTRICAL C C HARA TERISTICS VIN = 5V, VC = 0.6V, VFB = VREF, IFB = 0V, VSW and S/S pins open, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Error Amplifier Clamp Voltage High Clamp, VFB = 1V 1.70 1.95 2.30 V Low Clamp, VFB = 1.5V 0.25 0.40 0.52 V AV Error Amplifier Voltage Gain 500 V/ V VC Pin Threshold Duty Cycle = 0% 0.8 1 1.25 V f Switching Frequency 2.7V ≤ VIN ≤ 25V 450 500 550 kHz 0 °C ≤ TJ ≤ 125°C 430 500 580 kHz TJ < 0°C 400 580 kHz Maximum Switch Duty Cycle q 85 95 % Switch Current Limit Blanking Time 130 260 ns BV Output Switch Breakdown Voltage 0 °C ≤ TJ ≤ 125°C40 47 V TJ < 0°C35 V VSAT Output Switch ON Resistance ISW = 2A q 0.25 0.45 Ω ILIM Switch Current Limit Duty Cycle = 50% q 3.0 3.8 5.4 A Duty Cycle = 80% (Note 1) q 2.6 3.4 5.0 A ∆IIN/∆ISW Supply Current Increase During Switch ON Time 15 25 mA/A Control Voltage to Switch Current 4A/V Transconductance Minimum Input Voltage q 2.4 2.7 V IQ Supply Current 2.7V ≤ VIN ≤ 25V q 4 5.5 mA Shutdown Supply Current 2.7V ≤ VIN ≤ 25V, VS/S ≤ 0.6V, TJ ≥ 0°C q 12 30 µA TJ < 0°C50 µA Shutdown Threshold 2.7V ≤ VIN ≤ 25V q 0.6 1.3 2 V Shutdown Delay q 512 25 µs S/S Pin Input Current 0V ≤ VS/S ≤ 5V q –10 15 µA Synchronization Frequency Range q 600 800 kHz The q denotes specifications which apply over the full operating temperature range. Note 1: For duty cycles (DC) between 50% and 85%, minimum guaranteed switch current is given by ILIM = 1.33 (2.75 – DC). Note 2: The IFB pin is servoed to its regulating state with VC = 0.8V. Note 3: Consult factory for grade selected parts. Note 4: The IFB pin is sevoed to regulate FB to 1.245V |
Similar Part No. - LT1513_15 |
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Similar Description - LT1513_15 |
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