Integrating the HW-133-v1.0 into a project is remarkably straightforward. Here is a step-by-step guide to a typical application:
: Unlike standard linear regulators, this module operates efficiently with minimal thermal throttling even at high loads.
This module is engineered to accept a higher input voltage and efficiently convert it to a lower, stable output voltage. With its ability to handle up to 3A of current and support a broad input and output voltage range, the HW-133 v1.0 is a versatile building block for various power-sensitive electronics projects, automotive applications, and industrial systems.
Provides a path for current when the internal switch is off. Hw-133-v1.0 Datasheet
When Leo closed the file, he felt a small, steady excitement — not only the thrill of technical possibility but the anticipation of requirements becoming products. The Hw-133-v1.0 datasheet was, in essence, a contract between engineers and the world: a clear, centered set of truths about what a small module could do and the conditions under which it would do it well.
HW-133-v1.0 DC-DC Step-Down (Buck) Converter module, typically based on the high-frequency switching regulator chip
HW-133-v1.0 is a compact, ultra-small DC-DC step-down (buck) converter module Integrating the HW-133-v1
The HW-133-V1.0 is a compact 3A DC-DC buck converter module offering up to 92% efficiency and a low 0.8 mA quiescent current, making it ideal for space-constrained, battery-powered projects. Measuring only 17×11×3.8 mm, the module provides a cleaner, more efficient power output (≤45mVpp ripple) compared to traditional LM2596 regulators. For technical details, visit AliExpress Wiki .
on how to adjust the output voltage for your specific project?
that require high current for servos or sensors. RC Models and DIY power banks. ⚠️ Critical Usage Notes With its ability to handle up to 3A
Because of its ultra-compact size (approx. 22mm x 17mm), it is a staple in DIY electronics, drone building, and portable battery-powered projects where space is at a premium. Technical Specifications
I can provide tailored instructions for your layout or calculate whether you will need external cooling components. Share public link
| Parameter | Value / Range | | :--- | :--- | | | 3.3V – 5.5V DC (Typically 5V) | | Current Consumption | < 20 mA | | Output Type | 2x Outputs: Digital (TTL) & Analog (Voltage divider) | | Digital Output Logic | 0V (Low) when water detected / 5V (High) when dry | | Analog Output Range | 0V (water covered) to VCC (completely dry) | | Comparator Chip | LM393 (Open collector/comparator) | | Sensitivity Adjust | 10kΩ Potentiometer (onboard) | | Operating Temperature | -25°C to +85°C | | Board Dimensions | 65mm x 20mm (Sensor PCB) + 38mm x 15mm (Control PCB) |
Connect to the negative or ground terminal of the power supply.
Unregulated DC supply input (4.5V to 28V).