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SC402B Datasheet(PDF) 4 Page - Semtech Corporation |
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SC402B Datasheet(HTML) 4 Page - Semtech Corporation |
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4 / 32 page  SC402B 4 Electrical Characteristics (continued) Parameter Conditions Min Typ Max Units Input Supplies (continued) VDD Supply Current ENL , EN/PSV = 0V, no external 5V VDD 3 7 μA ENL , EN/PSV = 0V, external 5V VDD supply 190 300 EN/PSV = VDD (PSAVE), No load, VFB > 600mV 0.7 mA VDD = 5V, f SW = 250kHz, EN/PSV = floating , no load (2) 8 VDD = 3V, f SW = 250kHz, EN/PSV = floating , no load (2) 5 FB On-Time Threshold Static V IN and load, TJ = 0 to +125 °C 0.595 0.6 0.605 V Static V IN and load, TJ = 40 to +125 °C 0.594 0.6 0.606 V Frequency Range Continuous mode operation (FCM) 1000 kHz Bootstrap Switch Resistance 10 Ω Timing On-Time Continuous mode operation, V IN = 12V, VOUT = 5V, fSW= 300kHz, RTON = 133kΩ 999 1110 1220 ns Minimum On-Time (2) 80 ns Minimum Off-Time (2) VDD = 5V 250 ns VDD = 3V 370 Soft-Start Soft-Start Current 3.0 µA Soft-Start Voltage(2) When V OUT reaches regulation 1.5 V Analog Inputs/Outputs VOUT Input Resistance 500 kΩ Current Sense Zero-Crossing Detector Threshold LX - PGND -3 0 +3 mV Power Good Power Good Threshold Upper limit, V FB > internal 600mV reference +20 % Lower limit, V FB < internal 600mV reference -10 % Start-Up Delay Time (between PWM enable and PGOOD high) VDD = 5V, C SS = 10nF 12 ms VDD = 3V, C SS = 10nF 7 |
Similar Part No. - SC402B |
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Similar Description - SC402B |
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