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ST1S03 Scheda tecnica(PDF) 3 Page - STMicroelectronics |
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ST1S03 Scheda tecnica(HTML) 3 Page - STMicroelectronics |
3 / 11 page ST1S03 3/11 Table 5: Electrical Characteristics (VIN_SW = VIN_A = 5V, CI = 4.7µF, CO = 22µF, L1 = 3.3µH, TJ = 0 to 125°C, unless otherwise specified. Typical values are referred to 25°C) NOTE 1: Guaranteed by design, not tested in production. Symbol Parameter Test Conditions Min. Typ. Max. Unit FB Feedback Voltage 784 800 816 mV PSRR Feedback PSRR 1Hz < Frequency VIN -60 dB IFB VFB Pin Bias Current 600 nA BW Bandwidth of Error Amplifier Closed Loop 300 KHz IQ Quiescent Current No Switching 2.5 mA IOUT Output Current VIN =3V to 16V 1.5 A IMIN Minimum Output Current 1 mA %VOUT/ ∆VIN Reference Line Regulation VIN = 3V to 16V 0.032 0.06 %VOUT / ∆VIN %VOUT/ ∆IOUT Reference Load Regulation IOUT = 10mA to 1.2A 0.0014 0.003 %VOUT /mA PWM fS PWM Switching Frequency (1) VFB = 0.8V, TA =25°C 1.2 1.5 1.8 MHz DMAX Maximum Duty Cycle 87 % ISWL Switching Current Limitation 1.65 A VDS Switch VDS ISW = 750 mA 200 350 mV E Efficiency IOUT =10mA to 1.2A 70 % TSHDN Thermal Shut Down (1) 130 150 °C THYS Thermal Shut Down Hysteresis (1) 15 °C ∆VOUT/ ∆IOUT Load Transient Response (1) IOUT = 100mA to 700mA tR = tF ≥ 100ns, TA = 25°C -5 +5 %VO ∆VOUT/ ∆IOUT @IO = short Short Circuit Removal Response (1) IOUT = 10mA to short, TA = 25°C +5 %VO |
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