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SC21150EVB Datasheet(PDF) 5 Page - Semtech Corporation |
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SC21150EVB Datasheet(HTML) 5 Page - Semtech Corporation |
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5 / 20 page  SC21150 5 Parameter Symbol Conditions Min Typ Max Units Output Voltage Range Vout Adjustable Vout 0.8 VIN V Output Voltage Line Regulation dVline 5.5V > VIN > (Vout +), PWM operation 0.7 %/V Output Voltage Load Regulation dVload 500mA < ILOAD < .2A -0.3 %/A Maximum Output Current IOUT Continuous current .2 A Soft Start Soft Start Time () TSS FB: from LX rising edge to 95% of final value 00 μs LX Switching Node On Resistance High-side Rdson_hs FB = 0V; ILX = 500mA 60 mΩ On Resistance Low-side Rdson_ls FB = VIN; ILX = 500mA 20 mΩ LX Leakage Current High Side ILX_hs FB = VIN = 5.5V; VLX = 0V -.5 -0. μA LX Leakage Current Low Side ILX_ls FB = 0V; VLX = VIN = 5.5V; Vout Automatic Discharge disabled 0. μA LX Pulldown Current() ILX_pd EN = 0V; VLX = V; Vout Automatic Discharge enabled 20 mA Switching Frequency() Fsw 4MHz option, PWM operation, 500mA load, adjustable output, Vout = 2.5V 3.6 4.0 4.4 MHz Current Sense High Side Current Limit ILIMhs Current from VIN to LX .5 2.2 3.0 A Low Side Current Limit ILIMls Current from LX to GND -0.8 A Zero Cross Detector Threshold Ithzcpfm Power Save Mode and DC Test condition 0 mA Thermal Protection Over-Temperature Shutdown Tts_rise Rising temperature 60 °C Over-Temperature Hysteresis Tts_hyst 0 °C EN Input EN Input High Threshhold VIHen .2 V EN Input Low Threshhold VILen 0.4 V EN Input High Current IIHen VEN = VIN - μA EN Input Low Current IILen VEN = 0V μA Electrical Characteristics (continued) |
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