IRU3037CSTRPBF Datasheet

Switching Converters, Regulators & Controllers


The IRU3037CSTRPBF controller IC is designed to provide a low cost synchronous Buck regulator for on-board DC to DC converter applications. With the migration of today’s ASIC products requiring low supply voltages such as 1.8V and lower, together with currents in excess of 3A, traditional linear regulators are simply too lossy to be used when input supply is 5V or even in some cases with 3.3V input supply. The IRU3037CSTRPBF together with dual N-channel MOSFETs such as IRU3037CSTRPBF, provide a low cost solution for such applications. This device features an internal 200KHz oscillator (400KHz for "A" version), under-voltage lockout for both Vcc and Vc supplies, an external programmable soft-start function as well as output under-voltage detection that latches off the device when an output short is detected. IRU3037CSTRPBF Features •Synchronous Controller in 8-Pin Package•Operating with single 5V or 12V supply voltage•Internal 200KHz Oscillator(400KHz for IRU3037A)•Soft-Start Function•Fixed Frequency Voltage Mode•500mA Peak Output Drive Capability•Protects the output when control FET is shorted•SOIC 8-Lead also available LEAD-FREE•PACKAGE ORDER INFORMATION IRU3037CSTRPBF Applications •DDR memory source sink Vtt application•Low cost on-board DC to DC such as 5V to 3.3V,•2.5V or 1.8V•Graphic Card•Hard Disk Drive


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Manufacturer information


Fairchild has a rich history as a pioneer in the semiconductor industry and that pioneering spirit endures today. In an era where diversity can dilute focus and hamper innovation, we specialize in the development and manufacturing of a complete portfolio of low- to high-power solutions for the mobile, industrial, cloud, automotive, lighting, and computing industries. Fairchild is one of the most reliable partners in the industry, offering the shortest time from concept to silicon, expert FAEs for customer support, and a flexible, multi-source supply chain. Our vision is clear – anticipate the power efficiencies demanded by tomorrow’s electronic products and deliver an amazing design experience

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