MAX8573EUT+

MAX8573EUT+ is an advanced, efficient, and reliable special purpose voltage regulator. It is a low-voltage synchronous Step-Down switching regulator with an internal high-side switch, a synchronous rectifier, and a low-side switch. Specifically, the MAX8573EUT+ was designed to provide an easy-to-use, drop-in replacement solution with good transient response, low operating current, and low output voltage ripple noise. The MAX8573EUT+ is a very versatile solution, delivering performance and flexibility across a broad range of applications.

The MAX8573EUT+ is the ideal choice for applications that require high power density, high efficiency, and minimum number of components. Its advanced design, built-in safety features, and wide input voltage range make it suitable for demanding applications where total cost, size, and reliability are key design considerations. The MAX8573EUT+ can be applied in a variety of low-voltage, high-power conversion applications that require maximum stability, such as high-power adapters, point-of-use DC/DC converters, digital media players, and test and measurement applications.

The MAX8573EUT+ is designed on a synchronous switching regulator architecture, which has been proven to be one of the most efficient, cost-effective, and reliable switching regulator topologies. The design of the MAX8573EUT+ is optimized for low and medium power applications, with high-side and low-side synchronized pulse width modulation (PWM) output control for optimal load transient response. It also features built-in current limiting protection, making it safer to use in applications with higher peak load currents. Additionally, it includes short-circuit and over-temperature protections as thermal- and electrical-protection measures to minimize the risk of damage in faulty operation.

The MAX8573EUT+ integrates high-side and low-side switches, synchronous rectifier, and components required for power stage control. The high-side switching element is a 30V N-MOSFET with a continuous drain current of 0.9A (1.5A peak). The low-side switching element is a 30V P-MOSFET with a continuous drain current of 1.2A (2.0A peak).

The MAX8573EUT+ also features a very low output voltage ripple specification. In order to reduce output voltage ripple, the MAX8573EUT+ utilises a low-side P-channel MOSFET for synchronous rectification. This MOSFET acts as a double-acting switch, conducting on the rising and falling edges of the high-side MOSFET’s PWM pulse. The combination of this low-side MOSFET along with the high-side MOSFET provides lower output voltage ripple and improved efficiency.

The MAX8573EUT+ is a very versatile solution and can be used in a wide range of output voltages, making it suitable for number of applications. It can be used in applications that require up to 18V output voltage, delivering excellent transient response and outstanding performance. Additionally, the MAX8573EUT+ is highly efficient because it incorporates low-side active synchronization, allowing it to achieve high efficiency with low switching losses, less stress on components, and improved system reliability.

In conclusion, the MAX8573EUT+ is an excellent choice for applications that require a high-power density synchronous voltage regulator. It provides excellent performance, high level of integration and flexibility, and high efficiency, making it an ideal solution for a wide variety of applications. It provides a high-efficiency drop-in replacement solution with excellent transient response, low operating current, and low output voltage ripple noise.