SY3408 Power Bank IC – Synchronous Boost Converter with Power Path Management

The SY3408 Power Bank IC is a high-efficiency synchronous boost converter with integrated power path management, designed specifically for power bank and portable charging applications. It integrates charging, discharging, and protection functions in a single compact IC, reducing external components and simplifying circuit design.

With features such as automatic power path control, USB charging compatibility, load detection, and multiple protection mechanisms (OVP, OCP, OTP, UVLO), the SY3408 ensures safe and reliable operation. It supports lithium-ion/lithium-polymer battery charging and provides stable 5V output for USB-powered devices.

Features:

• Integrated boost converter and power path management
• Supports single-cell Li-ion/Li-Po battery charging
• Automatic power path control for charging and discharging
• USB-compatible 5V output for portable devices
• Built-in protection functions: OVP, OCP, OTP, UVLO
• High efficiency synchronous design
• Compact IC, ideal for power banks, USB chargers, and portable devices

Specifications:

• Model: SY3408
• Type: Power Bank Management IC
• Input Voltage Range: 2.7V – 5.5V
• Output Voltage: 5V regulated USB output
• Battery Support: Single-cell Li-ion / Li-Po
• Functions: Boost conversion, charging, discharging, load detection, protection
• Protection Features: Overvoltage (OVP), Overcurrent (OCP), Overtemperature (OTP), Undervoltage Lockout (UVLO)
• Package Type: SOP-8 (common package form)
• Applications: Power banks, portable USB chargers, handheld electronics

Package Includes:

• 1 x SY3408 Power Bank IC