Name: Dual USB DC-DC Buck Converter 6V-32V to 5V 3A Multi-Protocol Step-Down Charging Board - UNIVERSAL CIRCUIT SYSTEM
SKU: UCS-0191
Price: 190.00 BDT
Availability: InStock

Product Overview

The Dual USB DC-DC Step-Down Charging Module is a high-performance, industrial-grade multi-protocol buck converter board engineered to deliver fast, stable power to two mobile devices simultaneously. It accepts a wide input voltage envelope spanning from 6V up to 32V DC, making it instantly compatible with standard 12V and 24V vehicle electrical systems, industrial power rails, off-grid solar arrays, and high-capacity lithium battery banks. This module features a perfectly balanced, dual-channel mirrored circuit architecture that steps down incoming voltage with exceptional efficiency and minimal thermal output.

Advanced Mirrored Dual-Channel Architecture

Unlike basic multi-port charging boards that force devices to share a single power lane, this premium module features two entirely independent step-down conversion paths:

Dual Power Processing Engines: Each USB channel is managed by its own high-speed switching regulator chip, allowing both ports to negotiate independent fast-charging profiles and deliver full power without bottlenecking the adjacent device.
Dual Heavy-Duty 220 Inductors: The layout incorporates two high-current, surface-mount 220 power inductors that store and release magnetic flux smoothly, ensuring high power throughput and low electromagnetic interference (EMI).
Multi-Stage Solid Capacitor Filtering: To ensure safety for high-end smartphones, each channel is ironed out by dedicated low-ESR solid aluminum capacitors (one 100µF 35V VT tank on the input side and one 220µF 16V VT smoothing filter on the output side), which completely eliminate voltage ripple noise.
Independent Diagnostic Status LEDs: Features two clear onboard surface-mount LEDs labeled LED1 and LED2 that illuminate to provide immediate visual confirmation when each respective USB channel is actively processing power.

Flexible Dual-Input Design & Connectivity

The board is uniquely engineered to adapt to different installation environments by offering two distinct power input paths:

Central DC Barrel Receptacle: A standard, fully shrouded DC power jack located at the top center allows for tool-free, plug-and-play integration using common AC-to-DC wall power bricks.
Oversized Input Solder Pads: Flanking the DC jack are gold-plated, wide-gauge solder pads labeled +IN and -IN, allowing advanced builders to securely hardwire thick power cables directly to vehicle batteries or distribution boards.

Comprehensive Smart Protections

The module features a robust layer of automated hardware safeguards to protect your downstream equipment:

Output Over-Current Safeguards: Safely restricts current output to a peak threshold of roughly 3A per port to prevent connected smartphones from overheating.
Short-Circuit & Over-Temperature Isolation: Automatically cuts power execution if an electrical fault or thermal spike is detected, restarting safely once conditions normalize.

Common Field Applications

DIY Multi-Port Car Chargers: Hardwiring the panel behind a car, truck, or boat dashboard to create a modern dual-USB charging hub driven directly by the vehicle’s 12V–24V battery line.
Off-Grid Solar Charging Stations: Regulating fluctuating inputs from portable solar panels down to dual stable outputs to charge field equipment, tablets, or phones outdoors.
Workshop Bench Power Expansion: Soldering the module to an old 19V or 24V laptop charger to build a dedicated, high-efficiency smartphone fast-charging zone on an electronics workbench.