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ADP1031ACPZ-3-R7 数据表(PDF) 5 Page - Analog Devices |
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ADP1031ACPZ-3-R7 数据表(HTML) 5 Page - Analog Devices |
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5 / 38 page  Data Sheet ADP1031 Rev. A | Page 5 of 38 Parameter Symbol Min Typ Max Unit Test Conditions/Comments Feedback Voltage VFB1 0.8 V Feedback Voltage Accuracy −1.5 +1.5 % Adjustable output options Feedback Bias Current IFB1 0.05 µA Load Regulation (ΔVFB1/VFB1)/ΔIOUT1 −0.0005 %/mA IOUT1 = 4 mA to 24 mA, IOUT2 = 10 mA, IOUT3 = −1 mA Line Regulation (ΔVOUT1/VOUT1)/ΔVINP 0.0003 %/V VINP = 16 V to 32 V, IOUT1 = 20 mA, IOUT2 = 10 mA, IOUT3 = −1 mA Power Field Effect Transistor (FET) On Resistance RON (FLYBACK) 3 Ω SWP current (ISWP) = 100 mA Current-Limit Threshold ILIM (FLYBACK) 280 300 320 mA SWP Leakage Current 0.03 0.5 µA SWP voltage (VSWP) = 60 V SWP Capacitance CSWP 50 pF Switching Frequency fSW (FLYBACK) 235 250 265 kHz SYNC = low or high fSYNC/2 kHz SYNC = external clock Minimum On Time 425 ns Minimum Off Time 220 ns Soft Start Timer tSS (FLYBACK) 8 ms Severe Overvoltage Threshold SOVPFLYBACK 29.4 30 30.6 V Flyback regulator stops switching until the overvoltage is removed Severe Overvoltage Hysteresis SOVPFLYBACK_HYST 500 mV BUCK REGULATOR Output Voltage VOUT2 5.15 V ADP1031ACPZ-1, ADP1031ACPZ-4, and ADP1031ACPZ-5 5.0 V ADP1031ACPZ-2 3.3 V ADP1031ACPZ-3 Output Voltage Accuracy −1.5 +1.5 % IOUT2 = 10 mA, applies to all models Load Regulation (ΔVOUT2/VOUT2)/ΔIOUT2 −0.0005 %/mA IOUT2 = 2 mA to 50 mA Line Regulation (ΔVOUT2/VOUT2)/ΔVOUT1 0.0004 %/V VOUT1 = 6 V to 28 V, IOUT2 = 7 mA Power FET On Resistance RON_NFET (BUCK) 1 Ω SW2 current (ISW2) = 100 mA RON_PFET (BUCK) 2.5 Ω ISW2 = 100 mA Current-Limit Threshold ILIM (BUCK) 280 300 320 mA SW2 Leakage Current P Type Metal-Oxide Semiconductor (PMOS) 0.03 0.5 µA VSW2 = 0 V N Type Metal-Oxide Semiconductor (NMOS) 0.03 0.5 µA VSW2 = 28 V Switching Frequency fSW (BUCK) 117.5 125 132.5 kHz SYNC = low or high fSYNC/4 kHz SYNC = external clock Minimum On Time 200 ns Soft Start Timer tSS (BUCK) 8 ms Active Pull-Down Resistor RPD (BUCK) 1.7 kΩ 1.23 V < VOUT1 < 4.5 V INVERTING REGULATOR Output Voltage Range VOUT3 −24 −5 V Feedback Voltage VFB3 0.8 V In reference to VOUT3 Feedback Voltage Accuracy −1.5 +1.5 % Adjustable output option Feedback Bias Current IFB3 0.05 µA Load Regulation (ΔVFB3/VFB3)/ΔIOUT3 −0.01 %/mA IOUT3 = 1 mA to 15 mA Line Regulation (ΔVOUT3/VOUT3)/ΔVOUT1 0.0005 %/V VOUT1 = 6 V to 28 V, IOUT3 = −15 mA Power FET On Resistance RON_NFET(INVERTER) 1.45 Ω SW3 current (ISW3) = 100 mA RON_PFET (INVERTER) 2.2 Ω ISW3 = 100 mA |
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