MAX1744AUB/V+

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MAX1744AUB/V+ Application Field and Working Principle

The MAX1744AUB/V+ is a dual-output synchronous DC-DC buck controller, suitable for a wide range of applications like in wired/wireless broadband equipment, enterprise router modules, 3G base stations, and automotive systems. This device is a Precision Edge-triggered Controller (PExT). It is optimized to work with external MOSFETs to deliver high power efficiency and allows users to program their power supply output voltage.

Overview

The MAX1744AUB/V+ controller offers high precision, fast switching frequency, and low-noise operation with ease of setup and programming. This makes the MAX1744AUB/V+ suitable for complex ,high-power applications where high-efficiency and low EMI/RFI are of paramount importance. With its wide input voltage range, ±5% precision output voltage accuracy, and external clock synchronization, the MAX1744AUB/V+ offers a wide range of options for power supply design.

Application Field

With its wide input and output voltage range, the MAX1744AUB/V+ is suitable for a variety of applications. These include powering base stations for 3G and 4G access, wired/wireless broadband equipment, enterprise routers and server modules, as well as automotive electronic systems. This MCU is capable of delivering up to 25A of current to keep such systems running efficiently.

Operating Principle

The MAX1744AUB/V+ employs a synchronous buck architecture in order to regulate the output voltage. This is achieved by generating a PWM signal which is used to switch current in and out of the coils of an external inductor. This inductor serves to "smooth" out the AC ripple caused by the on-off switching and thus regulate the output voltage. The MAX1744AUB/V+ can also be programmed to enable frequency synchronization with an external clock. This allows the control circuitry to efficiently adjust the switching frequency to match the desired output voltage while reducing EMI/RFI.

Synopsis

The MAX1744AUB/V+ dual-output synchronous DC-DC buck controller is capable of regulating two output voltages up to 25A for a wide variety of applications. Its edge-triggered architecture means it can generate up to 5% precision output voltage accuracy and reduce EMI/RFI with frequency synchronization. This makes the MAX1744AUB/V+ an ideal choice for powering complex, high-power systems with ease of setup and programming.

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