High-precision switch charger - 1.5MHz switching frequency, supports 1uH inductor - ±0.4% constant voltage charging accuracy (adjustable in 10mV/step) - 5% constant current charging accuracy @1.5A - Charging termination current accuracy 20mA±2mA - Maximum support for 2A charging, charging efficiency >90%@1A - Supports configurable time Top-off charging function - BATFET impedance 45mΩ Low static power consumption boost - No-load output chip total power consumption less than 500uA - Maximum output current 1.2A, output voltage 4-stage adjustable - Configurable output from VBUS pin NVDC path management - Supports immediate start-up of battery-less/low-voltage battery systems - Supports input current limiting and input overvoltage protection (DPM) functions Static power consumption less than 12uA, shipmode power consumption less than 2uA Complete protection functions - 4-stage configurable input overvoltage protection - Battery overcurrent/overvoltage/undervoltage protection - Boost output overvoltage/overcurrent protection scheme - Thermal adjustment and thermal shutdown protection Flexible reset function - Supports configurable system power-down reset functions such as long-press button/watchdog/VBUS insertion

The SY6201 is a universal, low-power, high-precision NVDC architecture switch charger suitable for portable wearable battery devices such as wireless earphones and smartwatches. The chip integrates a charging module and a boost module, and includes comprehensive protection functions.
The SY6201 is optimized for fast charging applications with small-capacity lithium batteries. It supports a maximum charging current of 2A and a minimum charging cutoff current of 10mA. Meanwhile, the chip's standby power consumption is less than 12uA, and less than 2uA in ship mode.
The SY6201 can be configured flexibly via an I2C communication interface. The constant voltage charging voltage can be adjusted in 10mV increments, and the constant current charging current in 20mA increments.
The SY6201 integrates comprehensive battery protection functions, including JEITA charging standard support, charging timeout, and battery overvoltage/overcurrent/undervoltage protection.
The SY6201 integrates a reverse boost output function. The boost supports a maximum load of 1.2A and is highly efficient under light loads. Power consumption is less than 500uA when the output is unloaded, and the boost can be configured to output from VBUS (OTG function) depending on the application.
The SY6201 is packaged in a 4mm*4mm QFN24 package.