Multi-Channel Linear DC Power Supply Module AC220V 10W
Multi-Channel Linear DC Power Supply Module AC220V 10W
Multi-Channel Linear DC Regulated Power Supply Module — AC220V Input, 10W
This compact yet powerful multi-channel linear DC regulated power supply module converts AC220V mains input into multiple precise, low-noise DC output voltages. Ideal for engineers, hobbyists, and professionals who need a reliable bench-top or embedded power source for digital and analog circuits, microcontrollers, communication equipment, and industrial control instruments.
Key Features
- Multiple Output Voltages: ±12V, ±5V, 3.3V, 2.5V, and 1.8V — all from a single module
- Adjustable Output: ADJ adjustable voltage rail for custom voltage requirements
- Low Noise & Low Ripple: Linear regulation architecture ensures clean, stable power for sensitive analog and high-speed digital circuits
- Digital Display: Built-in digital readout for at-a-glance voltage monitoring
- Power Indicator Light: Visual confirmation that the module is live and operating
- Built-in Over-Temperature Protection: Integrated thermal protection circuitry guards the module during extended operation
- Versatile Applications: DAC/ADC converters, precision op-amps, MCUs, communication hardware, industrial instrumentation
Technical Specifications
| Input Voltage | AC 220V |
| Output Voltages | ±12V, ±5V, 3.3V, 2.5V, 1.8V + ADJ adjustable |
| Max Output Current (ADJ/±5V) | ±500mA (MAX); recommended <±200mA for ADJ, <±300mA for ±5V |
| Max Output Current (3.3V/2.5V/1.8V) | 500mA (MAX); recommended <300mA |
| Total Output Power | 10W (MAX) |
| Protection | Built-in over-temperature protection |
| Operating Temperature | 0°C – 70°C |
| EU LVD Compliance | Low Voltage: Below 50Vac or 75Vdc |
Important Safety & Usage Notes
- Mains Voltage — Observe Safety: The input is AC 220V. Always follow safe electrical practices. Switch off the power when the module is not in use.
- No Reverse Connection or Overcurrent Protection on Output: Double-check all external wiring polarity before powering up.
- 10W Total Power Limit: Do not exceed 10W combined output. Exceeding this limit risks transformer damage.
- Indicator Light Off? A load short circuit may be the cause. Power off immediately and inspect your circuit before restarting.
- Heat Management: LDO heating increases with higher current draw and larger input/output voltage differentials. At higher loads, attach an appropriate heat sink to maintain safe operating temperatures.
What's in the Box
- 1× Multi-Channel Linear DC Regulated Power Supply Module
Made in Mainland China.
For guidance on electrical safety standards relevant to power supply modules, visit the U.S. Consumer Product Safety Commission — Electrical Safety.
Learn more: Uninterruptible power supply
Frequently Asked Questions
Q: What input voltage does this DC regulated power supply module require?
A: This module is designed for AC 220V mains input. It is not compatible with AC 110V without a step-up transformer. Always ensure your mains supply matches this specification before connecting.
Q: Can I use all output channels simultaneously at maximum current?
A: The combined total output power must not exceed 10W. While each rail supports up to 500mA, running multiple rails at high current simultaneously will approach or exceed the 10W limit. Plan your load distribution carefully and add heat sinking when operating at higher sustained currents.
Q: Does this module include overcurrent or short-circuit protection on the outputs?
A: The module does NOT include output overcurrent or reverse-polarity protection. Always verify your wiring before powering up. If the power indicator light fails to illuminate, suspect a short circuit in the connected load and power down immediately to inspect.
Q: What is the adjustable (ADJ) voltage rail used for?
A: The ADJ rail allows you to dial in a custom output voltage beyond the fixed rails, making this module highly versatile for powering components with non-standard voltage requirements such as precision op-amps, analog-to-digital converters, and specialty microcontroller peripherals.