I’ve attached a photo of the board front/back.
The is an ultra-compact, high-efficiency synchronous step-down (Buck) DC-DC converter module designed for applications requiring precise voltage regulation within confined spaces. Driven by the high-frequency Monolithic Power Systems (MPS) MP1584EN step-down regulator IC , the module functions as a highly efficient alternative to traditional linear regulators like the LM78XX series, minimizing heat dissipation and conserving energy.
): Operating continuously near its maximum capacity yields internal power dissipation above Hw-133-v1.0 Datasheet
Most HW-133 series adapters are classified as and no longer manufactured. Key considerations include:
: These adapters provide JTAG-based in-system programming with features such as low power consumption, high-speed operation, and industrial temperature ranges I’ve attached a photo of the board front/back
So, what is the HW-133-v1.0, and how do you use it? Let’s break down what the datasheet would tell you.
The core electrical and thermal limits of the HW-133-V1.0 buck converter are detailed below: Specification Value MP1584EN / GW1584 / XM1584 High-frequency buck regulator Input Voltage Range ( VINcap V sub cap I cap N end-sub ) 4.5 V to 28 V DC Recommended: 6 V to 24 V Output Voltage Range ( VOUTcap V sub cap O cap U cap T end-sub ) 0.8 V to 20 V DC Must be lower than VINcap V sub cap I cap N end-sub Maximum Output Current ( IOUTcap I sub cap O cap U cap T end-sub ) Continuous load recommended < 2.0 A Switching Frequency 1.0 MHz (Typical) to 1.5 MHz (Max) Allows smaller inductor sizing Maximum Conversion Efficiency VINcap V sub cap I cap N end-sub VOUTcap V sub cap O cap U cap T end-sub differential Output Ripple Measured at standard 20 MHz bandwidth Quiescent Current Static standby current draw Operating Temperature -45°C to +85°C Thermal shutdown engages above limit Dimensions 22 mm x 17 mm x 4 mm Ultra-compact footprint Pinout Configuration ): Operating continuously near its maximum capacity yields
: The availability of such components can spur innovation among developers, leading to novel applications and use cases not initially envisioned by the component's creators.
: The HW-133B is a newer variant of the module, often featuring a fixed 5V output and a different input range. For instance, the datasheet for the HW-133B specifies an input voltage of DC 7V-28V and a fixed 5V output, compared to the adjustable 0.8-20V output of the HW-133-v1.0. The HW-133-v1.0 offers more flexibility due to its adjustable output.
The module does not feature an input reverse protection diode. Connecting positive supply to IN- and ground to IN+ will cause catastrophic thermal breakdown of the MP1584EN IC.