The RT9393 is a highly integrated power management IC (PMIC) from Richtek, primarily designed for portable applications where efficient power conversion and space-saving are critical. This PMIC integrates multiple DC-DC converters, a battery charger, and comprehensive system power management functions into a small package, making it suitable for smartphones, tablets, wearables, and other battery-powered devices. Its design focuses on maximizing battery life and minimizing board space.

Applications

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

Features

• Multiple DC-DC Converters: Provides efficient power conversion for core components.
• Integrated Battery Charger: Supports Lithium-ion and Lithium-polymer batteries with programmable charging parameters.
• Low Quiescent Current: Minimizes power consumption during standby and idle modes.
• I2C Interface: Allows for flexible configuration and monitoring of power rails and charging parameters.
• Protection Features: Includes over-voltage, over-current, short-circuit, and over-temperature protection.
• Compact Package: Small QFN package for space-constrained applications.

Benefits

• Optimized Power Efficiency: Extends battery life by minimizing power loss through efficient DC-DC conversion and low quiescent current.
• Reduced Board Space: Integration of multiple power functions reduces the number of external components required.
• Flexible Configuration: Allows for customization of power settings to match the specific needs of the application.
• Enhanced System Reliability: Protects the device from potential damage due to power-related faults.
• Simplified Design: Reduces the complexity of power management design, shortening time-to-market.

The RT9393 features multiple high-efficiency buck converters designed to power different system components, ensuring stable and efficient operation. The integrated battery charger supports Lithium-ion and Lithium-polymer batteries and allows for programmable charging parameters, facilitating optimized charging profiles. The low quiescent current minimizes power consumption during standby and idle modes, helping to extend battery life. The I2C interface enables flexible configuration and monitoring of power rails and charging parameters. The comprehensive protection features, including over-voltage, over-current, short-circuit, and over-temperature protection, safeguard the device against potential damage from power-related faults.

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, suitable for a wide range of environments. Specific output voltages and currents are configurable via the I2C interface.