LTC3831EGN#PBF

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The LTC3831EGN#PBF is a monolithic synchronous buck regulator specifically designed for easy implementation in point of load applications. The device utilizes organized and optimized circuitry to improve light load efficiency, minimize output voltage ripple, and reduce the external components count. The LTC3831EGN#PBF is designed to provide an easy to use power solution for a wide variety of applications including: microprocessors, microcontrollers, DSPs, FPGAs, memory, point of load voltage regulators, high performance ADCs and DACs, and other high performance digital ICs.

The LTC3831EGN#PBF belongs to the PMIC - Voltage Regulators - Special Purpose classification. This is due to its numerous specialized functions. As a monolithic synchronous buck regulator, the device effectively converts input voltages in the range of 4.5 V to 17 V to output voltages of 0.6 V to 15 V. It\'s capable of delivering up to 15 A continuous output current and up to 25 A peak current. It also features a wide operating temperature range (-40 to +125 C). In addition, the device includes several features to minimize switching noise and minimize external component count, including an on-time control loop and an internal high side/low side MOSFET FETexchange circuitry.

The working principle of the LTC3831EGN#PBF is based on the synchronous buck regulator topology. The device operates in constant frequency and current mode control, and features an integrated power-MOSFET (power MOSFET) on the high-side and a synchronous low-side MOSFET. The power MOSFET\'s on-resistance is controlled by the internal on-time control loop. When the load current reaches the set point, the power MOSFET is turned off via the non-overlapping gate driver, which limits the output current.

The LTC3831EGN#PBF includes an input voltage range of 4.5 V to 17 V, an output voltage range of 0.6 V to 15 V, an output current of 15 A, an output power of 180W, a device efficiency of up to 97%, an improved light-load efficiency, a wide operating temperature range of -40 to +125°C, and operates with a fixed pulse width modulation frequency of 550 kHz. It also features integrated thermal protection and short circuit protection.

The LTC3831EGN#PBF is widely used in a variety of applications, such as processors, microcontrollers, DSPs, FPGAs, memory, point of load voltage regulators, high performance ADCs and DACs, and other high performance digital ICs. It is an ideal choice for high performance, high efficiency, low noise and low component count power-supply solutions.

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