The ACT8945AQJ305-T is a highly integrated power management IC (PMIC) from Qorvo, designed for a wide range of portable and battery-powered applications. This PMIC integrates multiple functions, including buck converters, LDO regulators, and a battery charger, into a single chip. Its key features include high efficiency, small size, and programmability, enabling optimized power management in complex systems. The ACT8945AQJ305-T is suitable for use in smartphones, tablets, wearables, and other portable devices.

Applications:

• Smartphones: Power management for application processors, displays, and peripherals.
• Tablets: Power supply for the main processor, memory, and display panel.
• Wearable devices: Power management for smartwatches, fitness trackers, and medical devices.
• Portable media players: Voltage regulation for audio processing and display modules.
• Handheld gaming consoles: Power management for the GPU, memory, and display.

Features:

• Multiple buck converters: Provides efficient power conversion for different system components.
• Low-dropout (LDO) regulators: Offers stable voltage regulation with low dropout voltage.
• Integrated battery charger: Supports Li-ion and Li-Polymer battery charging.
• I2C interface: Enables programmability and control of PMIC settings.
• Overvoltage protection (OVP): Protects the system from overvoltage conditions.
• Overtemperature protection (OTP): Prevents damage from overheating.
• Short-circuit protection (SCP): Safeguards against short-circuit conditions.

Benefits:

• Extended battery life: High efficiency reduces power consumption.
• Smaller PCB footprint: Integration of multiple functions reduces component count.
• Flexible power management: Programmability allows for optimization of power settings.
• Enhanced system reliability: Protection features prevent damage from various fault conditions.
• Simplified design: Integrated solution reduces design complexity.

Technical Specifications:

The ACT8945AQJ305-T typically operates with an input voltage range of 2.7V to 5.5V. It features multiple buck converters with output currents up to 2A, LDO regulators with output currents up to 300mA, and a battery charger with a charging current of up to 1.5A. The device is available in a QFN package. Additional features include power-good indicators and interrupt outputs.