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ST1S03A Arkusz danych(PDF) 6 Page - STMicroelectronics |
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ST1S03A Arkusz danych(HTML) 6 Page - STMicroelectronics |
6 / 14 page Electrical characteristics ST1S03A 6/14 4 Electrical characteristics Table 5. Electrical characteristics (VIN_SW = VIN_A = VINH = 5 V, CI = 4.7 µF, CO = 22 µF, L1 = 3.3 µH, TJ = 0 to 125 °C (unless otherwise specified. Typical values are referred to 25 °C) Note: 1 Guaranteed by design, but not tested in production Symbol Parameter Test conditions Min. Typ. Max. Unit FB Feedback voltage 784 800 816 mV IFB VFB pin bias current 600 nA IQ Quiescent current VINH > 1.2V 1.5 mA VINH < 0.4V 1µA VINH Inhibit threshold Device ON 1.2 V Device OFF 0.4 IO Output current VI = 2.7 to 5.5V 1.5 A IMIN Minimum output current 1 mA %VO/ΔVI Reference line regulation VI = 2.7V to 5.5V 0.2 %VO/ ΔVI %VO/ΔIO Reference load regulation IO = 10mA to 1.5A 0.2 %VO/ ΔIO PWMfS PWM switching frequency VFB = 0.7V, TA = 25°C Note 1 1.2 1.5 1.8 MHz DMAX Maximum duty cycle VFB = 0.7V 87 % ISW Switching current limitation 2.5 A VDS Switch VDS ISW = 800mA 200 mV ν Efficiency IO = 10mA to 100mA, VO = 3.3V 70 % IO = 100mA to 1.5A, VO = 3.3V 85 TSHDN Thermal shutdown Note 1 130 150 °C THYS Thermal shutdown hysteresis Note 1 15 °C %VO/ΔIO Load transient response IO = 100mA to 1.5A, TA = 25°C tR = tF ≥ 100ns, Note 1 -3 +3 %VO %VO/ΔIO @ IO=Short Short circuit removal response IO = 10mA to short, TA = 25°C Note 1 -10 +10 %VO |
Podobny numer części - ST1S03A_08 |
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