Synchronous buck regulators support an input voltage range of 4.5V to 18V

Intersil Corporation (Milpitas, CA) announced the ISL85003 and ISL85003A 3 Amp synchronous buck regulators with integrated high-side and low-side MOSFETs. The new ISL85003/3A buck regulators support an input voltage range of 4.5V to 18V while delivering very efficient and continuous 3A current for the latest generation of FPGAs from leading manufacturers for high-end server, network communication and industrial process control applications. The ISL85003/3A buck regulators are designed to deliver a very low resistance in a triode region R_DS(ON) with an optimized current mode controller to further improve efficiency and reduce die temperatures, keeping complex systems cooler and preventing product failures. Features include:

• A high-side FET that runs at 65mΩ, and the low-side R_DS(ON)  runs at 45mΩ.
• Up to 95 percent efficiency.
• Input voltage range from 4.5V to 18V.
• Continuous 3A output current.
• Output voltage adjustable from 0.8V +/-1%.
• 500kHz switching frequency option.
• External synchronization up to 2MHz.

For more information on the synchronous buck regulators, visit www.intersil.com.

Intersil Corporation is a leader in the design and manufacture of high performance analog semiconductors. The company's products are targeted at some of the fastest growing segments of the industry: flat panel displays, mobile phones, other handheld systems and notebook computers. Intersil's product portfolio provides power management and analog signal processing. Intersil products include battery management ICs, hot-swap controllers, linear regulators, supervisory ICs, switching DC/DC regulators, power MOSFET drivers, optical storage laser diode drivers, DSL line drivers, video and high performance op amps , data converters, interface ICs, analog switches and multiplexers, crosspoint switches, IP voice devices, and ICs for military, space, and radiation-resistant applications.

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