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STM32H757AI 数据表(PDF) 112 Page - STMicroelectronics |
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STM32H757AI 数据表(HTML) 112 Page - STMicroelectronics |
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112 / 251 page  Electrical characteristics STM32H757xI 112/251 DS12931 Rev 1 6.3.2 VCAP external capacitor Stabilization for the main regulator is achieved by connecting an external capacitor CEXT to the VCAP pin. CEXT is specified in Table 25. Two external capacitors can be connected to VCAP pins. Figure 15. External capacitor CEXT 1. Legend: ESR is the equivalent series resistance. Table 24. Supply voltage and maximum frequency configuration Power scale VCORE source Max TJ (°C) Max frequency (MHz) Min VDD (V) VOS0 LDO 105 480 1.7 SMPS step-down converter(1) 1. VOS0 (power scale 0) is not available when the SMPS step-down converter directly supplies VCORE. -- - VOS1 LDO 125 400 1.62 SMPS step-down converter VOS2 LDO 125 300 1.62 SMPS step-down converter 125 VOS3 LDO(2) 2. Only for power-up sequence when the SMPS step-down converter supplies the LDO. 105 64 1.2(2) LDO 125 200 1.62 SMPS step-down converter 125 SVOS4 LDO 105 N/A 1.62 SMPS step-down converter 125 SVOS5 LDO 105 N/A 1.62 SMPS step-down converter 125 MS19044V2 ESR R Leak C |
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