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STWBC2-HP 数据表(PDF) 77 Page - STMicroelectronics |
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STWBC2-HP 数据表(HTML) 77 Page - STMicroelectronics |
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77 / 96 page  Symbol Parameter Test condition Min. Typ. Max. Unit VOFF,VDD3V6 VDD UVLO turn-off threshold (with 3.6 V selection) VDD turn-off threshold 3.25 3.35 3.45 V VOFF,VDD5V VDD UVLO turn-off threshold (with 5 V selection) VDD turn-off threshold 4.55 4.65 4.75 V TDELAY_VDD Comparator propagation delay dV/dt=100 mV/ms 1 μs TFILTER_VDD Comparator output filter -25% 1 +25% μs NRST PIN(1) VIL(NRST) NRST input low level voltage 0.3 x VLDO_3V3 V VIH(NRST) NRST input high level voltage 0.7 x VLDO_3V3 V Vhys(NRST) NRST Schmitt trigger voltage hysteresis 0.6 x VLDO_3V3 mV RPU Weak pull-up equivalent resistor(2) STM32G071 parameter, VSS=VLDO_3V3 75 kΩ BUCK SWITCHING REGULATOR VIN VIN operative range for VDD=5 V 5.5 24 V VIN operative range for VDD=3.6 V 4.1 24 V VBUCK_FB Average output voltage VDD=5 V selection, VIN ≥ 6V 4.75 5.0 5.25 V VDD=3.6 V selection, VIN ≥ 4.5V 3.42 3.6 3.78 V ILOAD Output load current 450 mA DVBUCK_FB_DO VDD Dropout Voltage ILOAD=[0÷450] mA DC; VDD=3.6 V/5 V 500 mV IVALLEYLIMIT_BUCK Valley Current Limit L=10 μH 450 600 750 mA IPEAKLIMIT_BUCK Peak Current Limit In Low-Dropout operations only 700 900 1100 mA fSW_BUCK Switching frequency CCM when not in LDO, L=10 μH 1 MHz RDSON_HS Buck switching node pull-up resistance ILOAD=100 mA, TJ = 25°C 300 430 685 mΩ RDSON_LS Buck switching node pull- down resistance ILOAD=100mA, TJ = 25°C 240 340 540 mΩ LINEAR REGULATORS VLDO_3V3 LDO_3V3 regulation voltage ILDO_3V3=[0÷150] mA; VDD=[3.4÷5.25] V 3.1 3.3 3.5 V ILDO_3V3 LDO_3V3 DC current capability 150 mA ◻VLDO_3V3_DO LDO_3V3 dropout voltage ILDO_3V3=150 mA DC; VDD=3.1 V 350 mV ILIMIT_LDO3V3 LDO_3V3 output current limit Trimmed parameter 270 380 520 mA CLDO_3V3 LDO_3V3 output capacitance allowed range Ceramic capacitor 4.7 22 μF VLDO_1V8 LDO_1V8 regulation voltage ILDO_1V8=[0÷50] mA; VDD=[3.4÷5.25] 1.7 1.8 1.9 V ILDO_1V8 LDO_1V8 DC current capability 50 mA STWBC2-HP Electrical characteristics DS13825 - Rev 1.0 page 77/96 |
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