MAX662ACSA+T

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The MAX662ACSA+T is a DC-DC Switching Regulator, belonging to the more general family of Voltage Regulators within the Power Management Integrated Circuit (PMIC) product category.

This device is an integrated DC-DC switching regulator, using pulse width modulation (PWM) to generatea fixed-frequency voltage mode controlled, monolithic switching powersupply. It is popularly used to efficiently provide a regulated output voltage from aninput single source, wherein the output voltage can differ from the inputvoltage.It is capable of providing a step-up/down function, with an adjustable output voltage from 2.5V to 24V,or a fixed output voltage from 2.5V to 13V, with an adjustable 1.8V highest voltagesetting.

The MAX662ACSA+T is a complete many-in-one integrated circuit solution, complete with an internallycontrolled MOSFET switch, along with a current limit circuit, a power-goodindicator, and an oscillator circuit. Additionally, the voltage regulator isequipped with a process-corrected architecture, where the all of thecomponents inside the integrated circuit are precision temperature compensated, so that the output voltage remains accurate across all operationaltemperature ranges from -25 to +85°C.

The MAX662ACSA+T is commonly used to drive and regulate the voltage of loads such as DSPs, SRAMs, ASICs, and microprocessors. It can also be used to provide a regulated voltage output for servo motioncontrollers, or motor control applications. By efficiently drawing an input voltage from a low-cost single source, the MAX662ACSA+T is able to reduce the component count of voltage regulator designs. This results in compact and cost-effective switching power supplies and ensures optimal efficiency, compared to discrete solutions.

At the centre of the MAX662ACSA+T switch regulator is a voltage mode controlled oscillator, which uses pulse width modulation to generate a variable duty cycle signal. The duty cycle is proportional to the voltage drop across a pair of resistors, which are connected between the output voltage and the feedback voltage. The MOSFET switch is independently controlled, with an overcurrent protection circuit including a comparator and reference voltage, a voltage level shifter, and a power good indicator. The current limit circuit further ensures that the output current does not exceed the maximum limit. In most current limit applications, the voltage drop across a current sense resistor is monitored and compared to a voltage reference, if the voltage drop exceeds the reference voltage, the error amplifier output turns off the PWM oscillator, thus turning off the switch and limiting the output current.

The MAX662ACSA+T boost converter circuit can be designed to regulate either a step-up or step-down voltage. By controlling the output voltage and current, the MAX662ACSA+T is able to provide a regulated output voltage from the input single source, no matter what the input voltage happens to be. With its high switching frequency and fast transition times, the MAX662ACSA+T is a great choice for applications where fast response and optimal efficiency are desired.

The MAX662ACSA+T is a highly versatile, efficient and cost-effective DC-DC Switching Regulator, and it is widely used in various power systems. Whether it’s used to regulate the power of a digital signal processor, a servo motor controller, or in any other power control application, the MAX662ACSA+T is a great choice.

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