The MT6301N/B is a Power Management IC (PMIC) developed by MediaTek to efficiently manage power distribution in mobile devices. It integrates multiple functions such as DC-DC converters, LDO regulators, battery charging management, and thermal protection into a single chip, simplifying the power management process and reducing the need for external components.

• Power Regulation: The DC-DC converters in the MT6301N/B ensure that the mobile device’s high-power components, such as the processor and display, receive stable and regulated voltage, while minimizing power loss during conversion. The LDO regulators provide low noise and stable power to sensitive components like memory and analog circuits, ensuring proper operation.

• Battery Charging Management: The MT6301N/B features fast charging support for Li-ion and Li-polymer batteries. It also includes comprehensive protection mechanisms, such as overvoltage protection, overcurrent protection, and thermal protection to ensure safe and efficient charging. These protections help prevent battery damage and overheating during the charging process.

• Thermal Protection: The MT6301N/B helps protect the device from overheating with its thermal protection features. Thermal throttling reduces power to high-demand components when the device temperature rises above safe levels, while thermal shutdown powers off the device completely to prevent thermal damage.

• Power Sequencing: The MT6301N/B manages the power sequencing of the device’s components during startup, ensuring that power is applied in the correct order. This is important for maintaining stable and efficient operation throughout the boot process.

• Protection Features: The PMIC includes overcurrent protection and short-circuit protection to protect the device’s components from electrical faults, preventing damage from excessive current or short circuits. These features help ensure the longevity and safety of the device.

• Battery Health Monitoring: The MT6301N/B constantly monitors the battery’s health, tracking parameters such as voltage, current, and temperature. This monitoring ensures that the battery operates within safe limits, preventing issues such as overcharging, overheating, and deep discharging, which could otherwise shorten the battery’s lifespan.

• I2C Communication Interface: The I2C communication interface provides real-time control over power settings, allowing the system to adjust the power delivery according to the device’s current needs. This ensures that power consumption is optimized, which can help extend battery life.