Ultra-Small DC-DC Step-Down Buck Converter — 3A, 1.8–12V Adjustable, -40°C to 80°C

Ultra-Small DC-DC Step-Down Buck Converter — 3A, 1.8–12V Adjustable, -40°C to 80°C

This ultra-compact DC-DC step-down buck converter delivers up to 3A of regulated output current in a minimal PCB footprint, making it ideal for space-constrained projects such as drones, wearables, and custom embedded PCBs. Output voltage is adjustable from 1.8V to 12V via an onboard trimmer, covering the most common logic supply voltages (1.8V, 2.5V, 3.3V, 5V, 9V, 12V).

Key Specifications

Parameter	Value
Topology	Step-down (buck)
Max Output Current	3A
Output Voltage	1.8V / 2.5V / 3.3V / 5V / 9V / 12V (adjustable via trimmer)
Form Factor	Ultra-small (minimal PCB footprint)
Operating Temperature	-40°C to +80°C

Why Choose This Ultra-Small Buck Converter?

• ✅ Ultra-compact footprint — fits in tight spaces where standard modules won't
• ✅ 3A output — sufficient for Raspberry Pi Zero, Arduino, ESP32, and sensors
• ✅ 1.8–12V adjustable — covers 1.8V, 3.3V, 5V, and 12V logic supply needs
• ✅ -40°C to +80°C — reliable in drone, automotive, and outdoor applications
• ✅ Onboard trimmer — set output voltage precisely without external components

Typical Applications

• Arduino / ESP32 regulated 3.3V or 5V power supply
• Drone and UAV onboard power regulation
• Wearable electronics compact power module
• Custom embedded PCB power stage
• Raspberry Pi Zero portable power supply
• Space-constrained IoT sensor node power

Package Contents

• 1 × Ultra-Small DC-DC Step-Down Buck Converter Module

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