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STM32MP157DAC1 数据表(PDF) 135 Page - STMicroelectronics |
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STM32MP157DAC1 数据表(HTML) 135 Page - STMicroelectronics |
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135 / 258 page  DS12504 Rev 2 135/258 STM32MP157A Electrical characteristics 238 REG1V8 embedded regulator (USB+DSI) 6.3.6 Supply current characteristics The current consumption is a function of several parameters and factors such as the operating voltage, ambient temperature, I/O pin loading, device software configuration, operating frequencies, I/O pin switching rate, program location in memory and executed binary code. The current consumption is measured as described in Figure 12: Current consumption measurement scheme. All the Run mode current consumption measurements given in this section are performed with a CoreMark code unless otherwise specified. IVDD Regulator Current consumption on VDD Regulator Enabled and Iload = 0 mA - 150 203 µA Regulator Enabled and Iload = 50 mA - 178 243 1. Guaranteed by design. 2. For better dynamic performances a 2.2 μF typical value external capacitor is recommended. 3. Load is for internal STM32MP157A analog blocks, no additional external load is accepted unless mentioned. Table 19. REG1V2 embedded regulator (DSI) characteristics(1) (continued) Symbol Parameter Condition Min Typ Max Unit Table 20. REG1V8 embedded regulator (USB+DSI) characteristics(1) Symbol Parameter Condition Min Typ Max Unit VDD Regulator input voltage - 2.25 3.3 3.6 V VDDA1V8_ REG Regulated output voltage after trimming 1.7 1.8 1.9 V CL Load Capacitor - 0.5 2.2(2) 3.3 µF esr Equivalent Serial Resistor of Cload - 0.1 25 600 mΩ Iload Static load current(3) - - - 70 mA tSTART Start-up time. from PWR_CR3.REG11EN = 1 to PWR_CR3.REG11RDY = 1 CL=2.2uF - 81 - µs CL=3.3uF - - 150 IINRUSH VDD Inrush Current to load external capacitor at start - - 80 100 mA IVDD Regulator Current consumption on VDD Regulator Enabled and Iload = 0 mA - 130 181 µA Regulator Enabled and Iload = 70 mA - 170 231 1. Guaranteed by design. 2. For better dynamic performances a 2.2 μF typical value external capacitor is recommended. 3. Load is for internal STM32MP157A analog blocks, no additional external load is accepted unless mentioned. |
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