Welded Type-C USB 5V 2A Boost Converter Step-Up Power Module with Lithium Battery Charging Protection
Upgrade your DIY projects with this compact and efficient Type-C USB 5V 2A Boost Converter Module. Designed for single-cell lithium battery applications, this module combines a powerful step-up converter with intelligent charging and protection features — all in a compact and ready-to-use welded design.
Equipped with a USB Type-C input and LED voltage display, this module provides a regulated 5V output (up to 2A), making it ideal for powering USB devices, development boards, mobile electronics, and portable gadgets. It also includes built-in lithium battery charging management, overcharge/discharge protection, and auto-restart functionality — ensuring safe and reliable operation.
Whether you're building a custom power bank, wearable device, or portable sensor module, this boost converter delivers performance, safety, and flexibility in one smart board.
Key Features:
- ✅ Step-Up Boost Converter: Converts lithium battery voltage to stable 5V (up to 2A)
- ✅ Type-C USB Input: Modern and convenient charging and power input
- ✅ Built-In Charging Circuit: Supports 4.2V/4.35V lithium battery charging at up to 2.4A
- ✅ Battery Protection: Overcharge, over-discharge, and low-voltage protection
- ✅ Smart Auto Functions: Auto-restart charging, no-load shutdown, and pre-charge mode
- ✅ External Control Pin: Optional button connection for manual output control
- ✅ LED Display: Real-time output voltage and status monitoring
- ✅ Compact Design: Welded USB-C for direct use – no soldering required
Electrical Specifications
- Input voltage: 5 – 5.5 V DC (via USB‑C)
-
Boost output:
- Voltage: 5.0 – 5.15 V (adjusted to compensate line loss)
- Maximum output current: 2 A
- Boost conversion efficiency: ≈ 92.5 % (measured from ~3.6 V battery to 5 V/2 A output)
- Output voltage ripple: ~100 mV
- Quiescent draw at battery: < 30 µA
Battery Charging Management
- Charge cutoff voltage: 4.2 V (± 0.5 %), or optionally 4.35 V
- Charging current: 2.4 A ± 5 %
- Termination behavior: Charging ends when current drops to ~100 mA at final voltage
-
Auto-restart:
- Re‑charges if battery voltage dips below 4.1 V
-
Pre-charge mode:
- If voltage drops under 2.8 V, pre‑charging begins at ~180 mA
Protection & Control Features
- Over‑charge and over‑discharge protection included
- No-load auto-shutdown: output disables if load current < 50 mA; power cycling allowed
- External control pin (“K” point): lets you add a button to toggle output/display manually