ICE5QR4770AZXKLA1

The ICE5QR4770AZXKLA1 is a highly efficient point-of-load (POL) DC-DC converter that provides a premium solution for applications in the industries such as computing and telecommunication. This converter is part of a family of Non-Isolated offline switchers – POL converters from International Rectifier that are recently released in the market. The ICE5QR4770AZXKLA1 offers up to 95% efficiency, wide input voltage range and extended temperature range for reliable operation in extreme environments. It also features optional pre-bias start-up and smart standby function with an LDO output which provides the highest power saving during light load instructions. This advanced POL converter supports the latest processor designs, while providing the highest energy efficiency required in many advanced electronic systems.

The ICE5QR4770AZXKLA1 is designed for powering processor cores and low power analog/digital IC’s in computing, data communication and industrial environment applications. This converter is also suitable for powering medical telecommunication, servers, switches, routers, test and measurement equipment, LEDs, UPS, etc. It works in non-isolated DC-DC conversion topology which is the most cost-effective and efficient solution for applications demanding precise regulation, continuous operation with no load and in extreme environments. Its switching frequencies up to 2MHz enable it to deliver precise steady-state regulation with low noise and high efficiency while providing flexible design options in a variety of power designs.

This converter works by controlling an internal power MOSFET through a high-side and low-side driver. It is optimized to provide high efficiency and wide output voltage range while consuming little energy. The unique design of this converter combines synchronous rectification (for maximum efficiency) and Soft recovery MOSFETs which provides additional performance benefits. It is also capable of auto-restart after the power down and responds to a variety of input voltage conditions which makes the device suitable for many applications. Its PWM/PFM operating modes and optional pre-bias start-up function provide superior transient response for powering sensitive loads.

In addition, the ICE5QR4770AZXKLA1 also offers an advanced protection scheme including: undervoltage, overload, over temperature, and over current protection. It also integrates a powerGood signal to indicate an output voltage valid and allows a proper system power up sequence. The ICE5QR4770AZXKLA1 is available in an 8-pin SOP or a 5-pin SIP package and supports a wide input voltage range and temperature range.

In conclusion, the ICE5QR4770AZXKLA1 is a highly efficient Non-Isolated offline switcher Point-of-Load DC-DC converter. This device offers high efficiency and wide input voltage range for reliable operation in extreme environments. It is designed to provide high power quality and accurate system control in applications such as servers, switches, routers, test/measurement devices, medical/telecommunication equipment and LEDs. Its advanced protection scheme and optional pre-bias start-up featuremake the device ideal for many advanced electronic systems. This converter is a premium solution for power electronic applications owing to its energy efficiency and reliable performance.