Matek PM12S-3 9-55V 3xBEC xV5V12V Power Regulator

Manufacturer: Matek (MatekSys). Product type: Drone parts (component for drones and quadcopters). This power module is designed for modern unmanned platforms and combines three independent buck converters (BEC) on a single board, allowing for convenient and reliable power supply to onboard electronics, servos, and additional loads.

Brief Description

MatekSys Power Module PM12S-3 — a high-performance and compact power module with a wide operating input voltage range of 9–55 V (with TVS protection). The device provides three independent outputs: Vx with switchable voltage levels, stable 5 V and 12 V, has a built-in voltage divider for monitoring, and a separate pin for connecting a current sensor. This simplifies installation, reduces system weight, and increases the reliability of your drone's electronics.

Key Features

• Input range: 9–55 V with TVS protection against pulses and overvoltages.
• Three independent BEC outputs: Vx (selectable 5.25 V / 6 V / 8 V), BEC 5V, and BEC 12V.
• Built-in 1:20 voltage divider for monitoring (Volt = 1/21 of input voltage).
• Separate pin for current sensor signal transmission — convenient for telemetry systems and power consumption control.
• Protection mechanisms: thermal protection, short-circuit protection (automatic shutdown up to 2 s), and overload recovery.

Technical Specifications

• 1. Operating input voltage range: 9–55 V (with TVS protection).
• 2. Number of independent buck converters: 3 (BEC Vx, BEC 5V, BEC 12V).
• 3. BEC Vx:
  • Output voltage: 5.25 V / 6 V / 8 V (1.5% tolerance).
  • Typical continuous output current: up to 15 A; peak load: up to 25 A.
  • Efficiency: 90–96%.
  • Output ripple: ~32 mV (VIN=50 V, 5.25 V @ 15 A), ~43 mV (VIN=50 V, 8 V @ 5 A).
  • Standby current: 10–20 mA.
  • Protection functions: thermal protection, short-circuit protection (up to 2 s), overload protection.
  • Note: for continuous 15 A output, the input voltage must be at least 15 V.
• 4. BEC 5V:
  • Output voltage: 5.2 V (1.5% tolerance).
  • Continuous output current: up to 4 A; peak load: up to 6 A.
  • Output ripple: ~20 mV (VIN=24 V, 5 A), ~50 mV (VIN=50 V, 5 A).
  • Protection functions: thermal protection, short-circuit protection (up to 2 s), overload protection.
• 5. BEC 12V:
  • Output voltage: 12 V (1.5% tolerance).
  • Continuous output current: up to 4 A; peak load: up to 6 A.
  • Output ripple: ~18 mV (VIN=24 V, 5 A), ~32 mV (VIN=50 V, 5 A).
  • Protection functions: thermal protection, short-circuit protection (up to 2 s), overload protection.
  • Note: for stable 12 V output, the recommended input voltage is at least 13 V.
• 6. Monitoring voltage: built-in 1:20 divider (Volt = 1/21 of input), allowing connection to a flight controller for accurate battery measurement.
• 7. Current sensor signal transmission: a separate pin is provided for connecting a current sensor, convenient for telemetry systems.
• 8. Dimensions and weight: 61×40×15 mm, weight 53 g.
• 9. Package contents:
  • 1× PM12S-3
  • 1× low-ESR ZLJ 63 V 390 µF capacitor.
  • Tip: if the input line is "noisy", the capacitor should be soldered to the input terminals to reduce interference.

The Power Module PM12S-3 is ideal for multirotors, hexacopters, flying wings, and other unmanned solutions where power reliability and compactness are critical. Thanks to three independent BECs, high efficiency, and built-in protection mechanisms, the PM12S-3 reduces the risk of electronics failures due to overloads or short circuits and simplifies the electrical installation of the drone.

If you are building or upgrading a drone and need a compact, efficient, and protected power source with voltage monitoring and current sensor connectivity, the Matek PM12S-3 will be an excellent choice. The device provides stable 5.25/6/8 V for power lines and separate stabilized 5.2 V and 12 V for electronics and auxiliary devices.

Product category: Drones and Quadcopters > Stacks (FC+ESC).

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