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STM32H7B3AI Datasheet(PDF) 80 Page - STMicroelectronics |
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STM32H7B3AI Datasheet(HTML) 80 Page - STMicroelectronics |
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80 / 238 page  6.1.6 Power supply scheme Figure 21. Power supply scheme VDD VDD50USB VREF- VSSA VSS Analog domain Core domain Backup domain LDO Voltage regulator Power switch VDDLDO VDDSMPS VLXSMPS VSSSMPS VFBSMPS VBAT VDDA VREF+ VDD USB regulator VCAP1/2 VDDMMC PDR_ON POR/PDR 100 nF 1 μF 100 nF 1 μF 1 μF 1 μF 100 nF 47W VDDA Three different possible use cases VREF+ 100 nF 1 μF 1 μF 5V Two different possible use cases 3.3V Battery 100 nF(1) VDD 100 nF(1) 4.7 μF VDD 100 nF 100 nF 1 μF Two different possible use cases VDDMMC Two different possible use cases 100nF 100 nF(1) 2.2 μF LDO enabled LDO disabled VCAP3 SMPS enabled SMPS disabled 4.7 μF 100 pF or 200 pF 4.7 μF 4.7 μ F 10 μF VDDSMPS 2.2 μH VDDMMC IOs BKUP IOs VDD IOs VDD domain Two different possible use cases 4.7 μF USB FS IOs SMPS Switched Mode Power Supply step down converter Defines different use case options Define power domaines VDD33USB STM32H7B3xI Parameter conditions DS13139 - Rev 8 page 80/238 |
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