Common ground return path for the input supply voltage source.
The HW-133 v1.0 is an ultra-small 3A DC-DC buck converter based on the MP1584EN regulator, operating within a 4.5V to 28V input and 0.8V to 20V output range. It features up to 96% efficiency, thermal shutdown, and integrated soft-start, making it suitable for compact, battery-powered projects requiring high efficiency. Detailed specifications and usage notes are available on product listings at Amazon.ca . MP1584EN Módulo Step Down 3A DC-DC - UNIT Electronics
Connect your primary power supply (e.g., a battery) to the IN+ and IN- terminals. Hw-133-v1.0 Datasheet
This reference datasheet provides the technical specifications, pinout, circuit operation, and application guidelines for the HW-133-V1.0 hardware revision. Technical Specifications
As Xilinx’s programming adapters for the XC9500, XC9500XL, and XC9500XV series CPLDs, the HW-133 adapters served as essential bridges between programmers like the HW-130 and target devices, enabling efficient in-system programming and prototyping. Although most HW-133 adapters are now classified as obsolete by the manufacturer, they remain valuable for maintaining legacy systems and supporting existing hardware designs. Common ground return path for the input supply
rated package, triggering the internal over-temperature protection loop.
It may take several full counter-clockwise turns before you see the voltage start to drop. Final Connection: Detailed specifications and usage notes are available on
Since there is no single official PDF from a major semiconductor manufacturer, the community has reverse-engineered the specifications. Here is the critical data you need:
The HW-133-v1.0 doesn't exist in a vacuum. It competes with a wide range of generic step-down modules. Here’s a quick comparison:
However, due to inconsistent labeling by Chinese manufacturers, some sellers list the Hw-133-v1.0 as a similar to the HC-SR04. Therefore, before working with any board labeled Hw-133-v1.0, always visually confirm its components.
The "v1.0" simply indicates the PCB revision. If you have this board, you have a device designed to detect water, moisture, or rainfall.