Color: Black Key benefits Stable, low ripple output with a TI TPS63020 voltage regulator chip for reliable performance. Switching frequency up to 2.4 MHz enables compact, lightweight components. Typical maximum continuous output current around 900 mA, suitable for a wide range of power supply scenarios. Two operation modes available: normal operation and power saving to help extend battery life in portable projects. Wide input voltage range from 1.8 to 5.5 V, making it compatible with common microcontrollers and development boards. Stepup/stepdown (buckboost) structure provides flexibility to maintain a stable supply as the input varies. Red LED output indicator provides a quick status check of the module in use. What it is A blackcolor power module built around the TI TPS63020 chip, designed to manage voltage for microcontroller platforms with variable input. It offers low output ripple and stable performance across its input range, with a switching frequency to support compact external components. Compatibility and performance Input voltage range: 1.8–5.5 V Output current: typical maximum around 900 mA Switching frequency: up to 2.4 MHz Architecture: typical stepup/stepdown (buckboost) design Supported devices: suitable for powering STM32, ESP32, 51 microcontrollers, and other models Status indicator: red LED Use scenarios Batterypowered microcontroller projects (STMicro, Espressif, or 51 MCU families) that require a stable supply from a single Liion or similar battery with varying input voltage. Portable sensor nodes or wearables where the powersaving mode helps maximize battery life without sacrificing performance. Prototyping and development boards that need reliable regulation and the ability to adapt to changing input voltage while maintaining device operation. Notes The module provides two modes to optimize energy use: normal operation and power saving. The red LED indicator helps confirm operation and status during setup and testing. This description preserves the original brand, specifications, models, and functions while presenting a clear, readerfriendly overview suitable for strong product conversion.