DA9168

DA9168 is a highly integrated power management IC (PMIC) designed by Renesas Electronics Corporation for portable and battery-powered applications. It features a low-dropout regulator (LDO), multiple DC-DC converters, and comprehensive power sequencing capabilities, enabling efficient voltage regulation across various system components. The device supports input voltages ranging from 2.5 V to 5.5 V, making it suitable for use with single-cell Li-ion batteries or standard 3.3 V systems. The DA9168 integrates two high-efficiency step-down (buck) converters capable of delivering up to 1.5 A and 0.5 A respectively, allowing flexible power distribution to processors, memory, and peripherals. Additionally, it includes a programmable LDO output that can supply up to 150 mA at adjustable voltages, ideal for powering analog circuits or sensors. Its advanced power sequencing logic ensures reliable startup and shutdown sequences for complex SoC-based systems, reducing boot failures and improving system stability. This PMIC also incorporates built-in protection features such as over-current protection (OCP), over-temperature protection (OTP), and under-voltage lockout (UVLO), which enhance reliability in harsh operating environments. The device supports I²C interface for configuration and monitoring, enabling dynamic adjustment of output voltages and operational modes via software control. This flexibility allows designers to optimize power consumption based on real-time system requirements. Designed for space-constrained applications, the DA9168 is packaged in a compact 24-pin QFN (4 mm × 4 mm), minimizing PCB footprint while maintaining excellent thermal performance. Its low quiescent current—less than 1 µA in shutdown mode—makes it particularly well-suited for always-on or low-power modes in IoT devices, wearables, and portable medical equipment. The chip’s robust design and extensive feature set support rapid development cycles and reduce the need for external components. Common applications include smart meters, wireless sensors, Bluetooth audio devices, and industrial handheld tools where efficiency, small size, and reliability are critical. By integrating multiple power functions into a single IC, the DA9168 simplifies system design, reduces bill-of-materials costs, and accelerates time-to-market for developers targeting energy-sensitive embedded systems.