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SC286 Datasheet(PDF) 4 Page - Semtech Corporation |
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SC286 Datasheet(HTML) 4 Page - Semtech Corporation |
4 / 20 page SC286 Parameter Symbol Conditions Min Typ Max Units Load Regulation ΔV LOAD-REG PVINA/B = AVINA/B = 5.0V, I OUT=800mA to 4A ±0.3 % Oscillator Frequency f OSC 1.275 1.600 1.925 MHz Soft-Start Charging Current(2) I SS +5 µA Foldback Holding Current I CL_HOLD Average LX Current 1 A Impedance of PGOOD Low R PGOOD_LO 10 Ω PGOOD Threshold V PG_TH VOUTA/B rising 90 % PGOOD Delay V PG_DLY Asserted 2 ms PGOODA/B= Low 20 µs CTL X Delay t EN_DLY From CTL X Input High to SS starts rising 50 µs CTL X Input Current (2) I CTLx CTL X =AVINA/B or AGNDA/B -2.0 2.0 µA CTL X Input High Threshold V CTLx_HI 1.2 V CTL X Input Low Threshold V CTLx_LO 0.4 V V OUTA/B Over Voltage Protection V OVP 110 115 120 % Thermal Shutdown Temperature T SD 160 °C Thermal Shutdown Hysteresis T SD_HYS 10 °C Notes: (1) The “Output Voltage Tolerance” includes output voltage accuracy, voltage drift over temperature and the line regulation. (2) A negative current means the current flows into the pin and a positive current means the current flows out from the pin. Electrical Characteristics (continued) 4 |
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