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STM32MP157A 数据表(PDF) 134 Page - STMicroelectronics |
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STM32MP157A 数据表(HTML) 134 Page - STMicroelectronics |
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134 / 259 page  Electrical characteristics STM32MP157A/D 134/259 DS12504 Rev 5 REG_1V2 embedded regulator (DSI) REG1V8 embedded regulator (USB+DSI) Table 19. REG1V2 embedded regulator (DSI) characteristics(1) Symbol Parameter Condition Min Typ Max Unit VDD1V2_D SI_REG Regulated output voltage - 1.15 1.2 1.26 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) - - - 50 mA tSTART Start-up time. from DSI_WRPCR.REGEN = 1 to DSI_WISR.RRS = 1 CL=2.2uF - 84 - µs CL=3.3uF - - 164 IINRUSH VDD Inrush Current to load external capacitor at start - - 45 60 mA 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/D analog blocks, no additional external load is accepted unless mentioned. 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. |
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