The RT9368A is a highly integrated power management IC (PMIC) from Richtek, tailored for applications demanding compact size and high efficiency, such as wearables, IoT devices, and portable electronics. This PMIC integrates multiple DC-DC converters, a battery charger, and comprehensive power management functions into a small package, optimizing board space and simplifying system design.

Applications

• Wearable devices (smartwatches, fitness trackers)
• Internet of Things (IoT) devices
• Portable media players
• Low-power handheld devices
• Bluetooth headsets

Features

• Multiple High-Efficiency DC-DC Converters: Provides efficient power conversion for various system components.
• Integrated Battery Charger: Supports Lithium-ion and Lithium-polymer batteries with optimized charging profiles.
• Low Quiescent Current: Minimizes power consumption in standby and idle modes.
• I2C Interface: Allows for flexible configuration and monitoring of power rails and charging parameters.
• Comprehensive Protection Features: Includes over-voltage, over-current, short-circuit, and over-temperature protection.
• Compact Package: Available in a small QFN package for space-constrained applications.

Benefits

• Small Form Factor: Ideal for compact and portable devices.
• High Efficiency: Extends battery life and reduces heat dissipation.
• Flexible Configuration: Enables customization of power settings for different applications.
• Enhanced System Reliability: Protects the device from potential damage due to power faults.
• Simplified Design: Reduces the number of external components and simplifies PCB layout.

The RT9368A incorporates multiple high-efficiency DC-DC converters that efficiently regulate voltage levels for different system components, such as the core processor, memory, and peripherals. The integrated battery charger supports Lithium-ion and Lithium-polymer batteries and provides optimized charging profiles to maximize battery life and safety. The low quiescent current minimizes power consumption during standby and idle modes, further extending battery life. An I2C interface allows for flexible configuration and monitoring of power rails and charging parameters. Comprehensive protection features, including over-voltage, over-current, short-circuit, and over-temperature protection, safeguard the device against potential damage due to power faults. The compact QFN package makes the RT9368A ideal for space-constrained applications.

Technical Specifications: The input voltage range is typically between 2.7V and 5.5V. The operating temperature range typically spans from -40°C to +85°C. Specific output voltage and current capabilities vary based on the configuration and load requirements.