DC‑DC converter Mean Well DETN02L-05, 2 W, input 4.5–5.5 V, output 200 mA, 10.9×15.2×7.1 mm

The Mean Well DETN02L-05 DC‑DC converter is a compact board‑mount power module that accepts a 4.5–5.5 V DC input and provides a regulated output capable of delivering up to 200 mA with a maximum output power of 2 W. Housed in a miniature package measuring 10.9 × 15.2 × 7.1 mm, this converter is designed for low‑power embedded electronics and applications where PCB space is constrained. The module offers simple integration for on‑board power regulation and is suitable for systems that require a small, reliable DC‑DC conversion solution.

Advantages

The small footprint and low profile make installation on densely populated PCBs straightforward while reducing the need for external heat sinking. With a narrow input voltage window of 4.5–5.5 V, the converter is optimized for single‑cell Li‑ion or stabilized 5 V supplies and provides stable output up to 200 mA. The sealed package and standardized mounting simplify assembly and shorten design cycles for portable devices, sensors, and other board‑level applications.

Suitable for

• Low‑power embedded systems and microcontroller boards
• Battery‑powered and portable devices using a 5 V range supply
• Sensor modules and data‑acquisition front ends
• On‑board power regulation in compact consumer or industrial electronics
• Prototyping and space‑constrained PCBs

Key specifications

• Input voltage range: 4.5–5.5 V DC
• Maximum output power: 2 W
• Maximum output current: 200 mA
• Physical dimensions: 10.9 × 15.2 × 7.1 mm (L × W × H)
• Mounting style: board‑mount (throughhole or SMD as shown by footprint)
• Output type: regulated DC output suitable for low‑power loads

How to use

Mount the converter onto the PCB following the manufacturer’s recommended footprint and polarity markings. Connect the input to a stable 4.5–5.5 V DC source with appropriate decoupling capacitors near the module inputs to minimize noise and ensure stability. Route the load to the regulated output, observing the maximum 200 mA current rating and power dissipation limits. Ensure adequate spacing around the module for airflow if operating near the maximum power and verify thermal performance in the final application.