• STM32MP1 SoC: Runs Linux and includes dual Cortex-A7 cores plus a Cortex-M4 for real-time tasks.
• DDR Memory: A DDR3L SDRAM interface provides enough memory for Linux-based applications.
• Power Management IC (STPMIC1): Handles multiple power rails for the SoC, DDR, and peripherals.
• USB-C Port: Supports USB OTG/host/device modes.
• MicroSD Card Slot: Allows booting Linux or storing user data.
• User Controls: Includes boot configuration DIP switches, reset/power keys, and Tag-Connect programming header.

1. 24 V AC → 5 V DC
   • Rectify and filter the 24 V AC (using a bridge rectifier and smoothing capacitor).
   • Step it down to 5 V using a buck converter (switching regulator).
2. 24 V DC → 5 V DC
   • Directly feed the 24 V DC into a buck converter to generate a stable 5 V rail.

1. Bridge Rectifier BR1
   • For example, a 1 A or 2 A, 50 V or higher rating.
   • Connect the two AC pins to the 24 V AC supply; the + and – outputs go to the next stage.
2. Bulk Capacitor C100
   • Example: 1000 µF, 35–50 V electrolytic.
   • Connect from the rectifier’s + output to GND (the – rectifier output).

1. Switching Regulator U4
   • e.g., an LM2596-based module or similar.
   • Input pins to the rectified ~24 V (or 24 V DC).
   • Output pin provides stabilized 5 V net (tie to your board’s 5V_IN).
2. Input/Output Capacitors
   • C101 on the input side (e.g., 10 µF, 35 V).
   • C102 on the output side (e.g., 100 µF, 10 V).
   • Values per the regulator datasheet.

1. Linear or Switching Regulator U5
   • For example, an AMS1117-3.3 or LM1117-3.3 if linear, or a small buck module if higher current is required.
   • Input from the buck’s 5 V output.
   • Output = 3.3 V.
2. Bypass Capacitors
   • C103 and C104, each typically 10 µF at regulator input/output.

- **Bridge Rectifier [BR1](https://www.flux.ai/search?type=components&q=bridge%20rectifier)**
  - Pins: ~, ~ -> 24 V AC Input; + -> +24 V DC Out; - -> GND

- **Bulk Electrolytic [C100](https://www.flux.ai/search?type=components&q=electrolytic%20capacitor)**
  - 1000 µF/35 V (or higher), between +24 V DC Out and GND

- **Buck Regulator [U4](https://www.flux.ai/search?type=components&q=LM2596%20buck)**
  - Input: +24 V DC (post-rectifier)
  - Output: 5 V => [5V_IN](https://www.flux.ai/:handle/:documentSlug?fit=5V_IN)

- **Caps [C101](https://www.flux.ai/search?type=components&q=Capacitor), [C102](https://www.flux.ai/search?type=components&q=Capacitor)**
  - Per datasheet, e.g., 10 µF on input, 100 µF on output

- **(Optional) 3.3 V Regulator [U5](https://www.flux.ai/search?type=components&q=3.3v%20regulator)**
  - Input: 5 V
  - Output: 3.3 V

- **Optional Caps [C103](https://www.flux.ai/search?type=components&q=Capacitor), [C104](https://www.flux.ai/search?type=components&q=Capacitor)**
  - Bypass on input/output of regulator U5

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