MAX751CSA+

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The MAX751CSA+ is a high-frequency step-down switching regulator with a low 58mΩ (maximum) on-resistance to provide up to 2A of continuous output current. It offers very accurate regulation with a ±1% tolerance at no load, as well as exceptional line and load transient response.

MAX751CSA+ is a DC-DC switching regulator (PMIC - Voltage Regulators - DC DC Switching Regulators) with a low 59mΩ (maximum) on-resistance to provide up to 2A of continuous output current. It features a fast settling frequency of 15MHz, and its integrated dual-channel synchronous technology enables the use of two outputs to balance the load current. It also provides very accurate regulation with a ±1% tolerance at no load, as well as exceptional line and load transient response.

The MAX751CSA+ is well suited for a wide range of applications, including LED drivers, point-of-load modules for FPGAs, power management for microprocessors, portable devices, and grid-tied solar inverters. It is also well suited for battery powered systems with the addition of the MAX701 remote shutdown controller. This device allows the regulator to be shut down without having to remove the load from the regulator.

The MAX751CSA+ can achieve an input voltage ranging from 2V to 16V, while its output voltage can be adjusted between 0.8V and VIN. It also features an internal PWM controller, allowing for multiple operating modes such as pulse-frequency modulation (PFM), pulse-width modulation (PWM), and burst-mode operation (BM). It also includes an adjustable current limit to ensure the safety of the load.

In operation, the MAX751CSA+ works by connecting the input voltage to the inductor, charging it. The inductor is then connected to the output, where it discharges its energy. This process creates a high-current DC supply voltage at the output, which is regulated by the internal error amplifier and power stage. The power stage is then used to generate the output voltage.

The MAX751CSA+ also features built-in thermal and short-circuit protection to protect the device in the event of a fault. Additionally, its very low noise operation is ideal for noise-sensitive applications. The MAX751CSA+ is available in an 8-pin VSSOP package Dimensions and operates over an extended temperature range of -40°C to +125°C.

In summary, the MAX751CSA+ is the ideal choice for a variety of applications that require low output voltage, high-current, and fast switching. It is designed with a low 58 mΩ (maximum) on-resistance, an extended -40°C to 125°C operational temperature range, and offers accurate regulation with a ±1% tolerance at no load. It also includes built-in thermal and short-circuit protection and can be used with the MAX701 remote shutdown controller for battery-powered systems. The MAX751CSA+ is a high-performance, versatile solution for a wide range of applications.

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