LX-LBC3.1 Charging and Discharging 5V 3A Integrated Module Type-C

LX-LBC3.1 5V3A Charging and Discharging Integrated Module Type-C is a high-efficiency power management circuit designed for lithium battery management in portable electronics. This compact board integrates synchronous step-up converter and charging capabilities into a single system. Consequently, it provides continuous 5V output at up to 3A current for power-hungry microcontrollers and peripherals. Furthermore, the onboard USB Type-C interface simplifies power input while delivering fast charging performance. Therefore, developers can seamlessly add reliable battery backup capabilities to DIY electronics and embedded systems without complex circuit designs.

Key Features:

• High Current Output: Delivers up to 3A output current at 5V to power modern development boards and high-drain sensors effectively.
• Synchronous Rectification: Utilizes high-efficiency synchronous switching conversion to minimize energy loss and operating temperature.
• Modern Type-C Port: Features a robust USB Type-C interface for fast, reliable power input and battery charging.
• Integrated Protection: Incorporates comprehensive protection against overcharging, over-discharging, short circuits, and over-current conditions.
• Compact Form Factor: Fits effortlessly into space-constrained enclosures and custom portable project builds.

Technical Specifications:

• Input Voltage Range: 4.5V to 5.5V DC (via Type-C or solder pads)
• Output Voltage: 5.0V ±0.25V DC
• Maximum Charging Current: ≈ 2.0A to 3.0A
• Continuous Output Current: Up to 3A
• Conversion Efficiency: ≥ 90% at optimal loads
• Battery Voltage Compatibility: 3.7V / 4.2V nominal single-cell lithium-ion or LiPo batteries
• Quiescent Current: ≤ 100 μA in standby mode

Mechanical Specifications:

• PCB Type: High-quality double-sided FR-4 PCB
• Input Connector: USB Type-C Female Port
• Battery Connection: Direct solder pads for BAT+ and BAT-
• Output Connection: Solder pads for OUT+ and OUT-

Dimensions:

• Length: ≈ 20 mm
• Width: ≈ 18 mm
• Height: ≈ 4.5 mm
• Weight: ≈ 3.0 g

Pinout and Wiring:

• Type-C Port: Primary power input interface for battery charging and circuit pass-through.
• BAT+: Connects directly to the positive terminal of the 3.7V lithium battery.
• BAT-: Connects directly to the negative terminal of the 3.7V lithium battery.
• OUT+: 5V regulated output positive terminal for driving external loads.
• OUT-: Common ground terminal for the output load interface.
• Note: However, double-check battery polarity prior to powering on the module to prevent board damage.

Datasheet Reference:

• Download Integrated Power Management Chip Datasheet

Commonly Used in:

• DIY Power Banks: Constructing custom high-capacity portable power sources for mobile electronics.
• IoT Gateways: Providing uninterrupted battery power backup for ESP32, Raspberry Pi, and Arduino nodes.
• Handheld Devices: Powering portable game consoles, field test tools, and wireless equipment.

Applications:

• Uninterruptible Power Supplies (UPS): Maintaining continuous power supply to embedded microcontrollers during mains power failure.
• Robotics Projects: Driving servo motors, microcontrollers, and wireless transceivers on mobile robot platforms.
• Portable Lighting: Managing charging and voltage regulation for high-brightness rechargeable LED arrays.

Equivalent Models:

• IP5306 2A/3A Module: A widely used power bank SOC module supporting simultaneous charge and discharge functions.
• MH-CD42 Module: A compact 5V 2A/3A charge-discharge boost board with Type-C input capability.
• TP5400 Boost Module: A lower-current alternative, however it provides lower max output compared to the LX-LBC3.1.

Package Includes:

• 1 x LX-LBC3.1 5V3A Charging and Discharging Integrated Module Type-C