The RT9372-FM is a highly integrated Power Management IC (PMIC) from Richtek, designed for portable devices that require efficient power conversion, battery charging, and system management functionalities. This PMIC integrates multiple DC-DC converters, a battery charger, and comprehensive protection features into a compact package, making it ideal for space-constrained applications such as smartphones, tablets, and wearables. Its advanced power management capabilities ensure optimized power delivery and prolonged battery life.

Applications

• Smartphones
• Tablets
• Wearable Devices (Smartwatches, Fitness Trackers)
• Portable Media Players
• Low-Power IoT Devices

Features

• Multiple DC-DC Converters: High-efficiency buck converters provide power to core components such as processors, memory, and peripherals.
• Integrated Battery Charger: Supports Lithium-ion and Lithium-polymer batteries with programmable charging parameters.
• Low Quiescent Current: Minimizes power consumption in standby and idle modes, extending battery life.
• I2C Interface: Allows for flexible configuration and monitoring of power rails, charging parameters, and protection features.
• Protection Features: Includes Over-Voltage Protection (OVP), Over-Current Protection (OCP), Short-Circuit Protection (SCP), and Over-Temperature Protection (OTP).
• Compact Package: Available in a small QFN package for space-constrained applications.

Benefits

• High Power Efficiency: Efficient DC-DC converters and low quiescent current minimize power loss and extend battery life.
• Reduced Board Space: Integrated power functions reduce the need for external components, saving board space.
• Flexible Configuration: I2C interface allows for easy configuration and monitoring of key parameters.
• Enhanced System Reliability: Comprehensive protection features ensure safe and reliable operation under various conditions.
• Simplified Design: Integrated solution simplifies power management design and reduces time-to-market.

The RT9372-FM features multiple high-efficiency buck converters that deliver power to different system components, ensuring stable and efficient operation. The integrated battery charger supports Lithium-ion and Lithium-polymer batteries and offers programmable charging parameters, enabling optimized charging profiles tailored to specific battery characteristics. The I2C interface allows for flexible configuration and monitoring of key parameters, providing the ability to fine-tune the PMIC for optimal performance in various applications. Comprehensive protection features, including Over-Voltage Protection, Over-Current Protection, Short-Circuit Protection, and Over-Temperature Protection, safeguard the device against potential damage and ensure reliable operation.

Technical Specifications: The input voltage range typically spans from 2.7V to 5.5V. The operating temperature range is generally from -40°C to +85°C, making it suitable for a wide range of environmental conditions. Specific output voltages and currents for the DC-DC converters are configurable via the I2C interface.