The WM8352BGEB/RV is a highly integrated power management IC (PMIC) from Cirrus Logic, designed to cater to the power management needs of portable devices. This PMIC incorporates numerous power conversion and control functions within a single chip. It is typically used to manage power distribution, battery charging, and system control in smartphones, tablets, and other battery-powered devices, improving efficiency and reducing overall system size.

Applications

• Smartphones
• Tablets
• Portable Media Players
• Handheld Gaming Devices
• Other battery-powered portable devices

Features

• Multiple DC-DC Converters: Integrates several high-efficiency buck converters and boost converters for powering different subsystems.
• LDO Regulators: Includes multiple low-dropout (LDO) regulators for noise-sensitive applications.
• Battery Charger: Built-in battery charging circuitry for Lithium-ion/Polymer batteries.
• Power Sequencing: Programmable power-up and power-down sequencing for controlled system behavior.
• Real-Time Clock (RTC): Incorporates an RTC with battery backup for timekeeping.
• I2C Interface: Provides an I2C interface for control and configuration.
• Low Quiescent Current: Designed for low power consumption in standby and idle modes.

Benefits

• Reduced BOM Cost: Integration of multiple functions reduces the number of external components.
• Extended Battery Life: High efficiency and low quiescent current contribute to longer battery life.
• Simplified System Design: Integration simplifies power system design and reduces board space.
• Improved System Reliability: Controlled power sequencing and protection features enhance reliability.
• Smaller Form Factor: Compact package enables smaller device designs.

Additional Details

The WM8352BGEB/RV provides a comprehensive power management solution for complex portable systems. The DC-DC converters are designed for high efficiency across a wide range of load currents, optimizing power usage under various operating conditions. The LDO regulators ensure stable and clean power to sensitive circuits, improving overall system performance. The battery charger is designed to support various charging profiles and includes safety features to protect the battery. The programmable power sequencing ensures proper initialization and shutdown of the device. The I2C interface allows for real-time monitoring and adjustment of PMIC settings. The integrated RTC allows for maintaining accurate timekeeping, even when the main power is off.

Refer to the WM8352BGEB/RV datasheet for precise details on voltage and current ratings of the regulators and battery charger, as well as other technical specifications.