IRS27951STRPBF

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The IRS27951STRPBF is a DC-DC switching controller integrated with a low on-resistance, N-channel MOSFET. It is configured to provide a synchronous Buck converter in applications utilizing voltage input range of 40V to 100V. This controller is ideal for power delivery applications in telecom equipments, enterprise and cloud computing platforms, as well as industrial and IoT applications.

The IRS27951STRPBF implements a low-noise, fixed frequency current mode control architecture to maintain a constant output voltage. It uses synchronous rectification to reduce conduction and switching losses, thereby achieving high efficiency. The switching frequency can be adjusted by an external resistor and is optimized for resonant or active-clamp topologies. The controller also features an integrated adjustable soft-start, short-circuit protection, under voltage lockout, overload protection, current limit and thermal shutdown protection.

The low switching frequency of the IRS27951STRPBF allows designers to use smaller magnetics, more integrally-packed power delivery designs and lower-profile filter components. The controller also features a 1.1V reference voltage and a low quiescent current, making it a suitable choice for portables and energy-sensitive applications. The IRS27951STRPBF has a very fast transient response due to cycle-by-cycle current sensing.

The IRS27951STRPBF DC-DC switching controller is packaged in a 7-pin, PowerPAD TSSOP-7 package with exposed metal pad on the bottom. The exposed metal pad ensures the best thermal performance in power applications. The device is available from 2.5V to 5.5V on a single voltage rail. The maximum output voltage is adjustable up to 10V and the maximum output current is up to 18A.

Working Principle and Applications

The working principle of the IRS27951STRPBF is based on synchronous Buck controller using external components. The Buck converter is a type of DC-DC converter which is used to convert a DC voltage from one level to another. It operates by switching the switching element (MOSFET) in a specific pattern to transfer energy from the input side (high voltage) to the output side (lower voltage). The controller produces a continuous output current with a regulated output voltage. The output voltage is regulated by the feedback loop and the cycle-by-cycle current limit.

The IRS27951STRPBF is ideal for applications such as power delivery for telecom equipments, enterprise and computing platforms, as well as industrial and IoT applications. It is also suitable for wide range of general purpose DC-DC converters, including computer peripherals, automotive, automotive aftermarket and data center applications. The controller can be used with different topologies such as Buck, Boost, Flyback, SEPIC and other isolated architectures.

In summary, the IRS27951STRPBF is a high performance, low on-resistance, N-channel MOSFET DC-DC switcher controller with integrated adjustable soft-start, short-circuit protection, under voltage lockout, overload protection, current limit and thermal shutdown protection. The device is available in 7-pin TSSOP-7 package with an exposed metal pad, which ensures the best thermal performance in power applications. The device is suitable for a wide range of automotive, embedded systems and data power delivery applications where high efficiency is required.

The specific data is subject to PDF, and the above content is for reference