The power consumption of the [STM32F205](https://www.ampheo.com/search/STM32F205) [microcontroller](https://www.ampheo.com/c/microcontrollers) (based on ARM Cortex-M3 core) varies depending on several factors like clock frequency, operating mode, peripherals in use, and power-saving configuration.

Here's a breakdown based on [STMicroelectronics](https://www.ampheo.com/manufacturer/stmicroelectronics)' official datasheet for the STM32F205 series:

**Typical Power Consumption (STM32F205)**

**Key Influencing Factors**
* Voltage Supply (V_DD): usually 1.8V – 3.6V
* Clock frequency: Higher MHz = more current
* Peripherals: ADC, USB, DMA, etc. increase consumption
* I/O activity: Switching GPIOs also adds power
* Temperature: High temperatures = higher leakage currents

**Example Power Profiles**

**How to Minimize Power:**
* Lower the system clock when full speed isn’t needed.
* Use low-power modes (Sleep, Stop, Standby) as much as possible.
* Disable unused peripherals and clocks.
* Use DMA instead of CPU polling.
* Enable voltage scaling (if supported).

**Datasheet Reference:**
You can find this data in the [STM32F205xx](https://www.ampheoelec.de/search/STM32F205) datasheet (Rev. 7 or higher), Section "Electrical characteristics".