MAX6472TA30AD3+T

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MAX6472TA30AD3+T is a linear voltage regulator (PMIC - Voltage Regulators - Linear) which is a predominantly used device in integrated power management blocks and power supply systems. It has the capacity to supply an adjustable voltage output range from 0.8V to 6.5V for both adjustable and fixed power supply designs. The device features adjustable output voltage, an on/off enable pin and finely tuned current smoothing for optimum power delivery. It is suitable for a wide range of applications, from low-power handheld and portable devices to high-power computing products.

In a typical buck converter circuit, the MAX6472TA30AD3+T voltage regulator will act as a switch mode DC/DC converter in order to generate the required power output. The IC utilizes a fixed frequency PWM control loop to regulate the input voltage of the regulator in order to obtain the desired output voltage. The voltage is regulated by a combination of a series of MOSFETs and the voltage feedback loop. Then, the required current is delivered to the load when the switch is closed, and the current will be regulated according to the voltage feedback loop. The feedback voltage is regulated by an error amplifier which monitors internal and external voltages with respect to a reference voltage. Then these signals are amplified to generate the control signal for the gate of the main power transistor, which ultimately supplies the output voltage.

The MAX6472TA30AD3+T features an on/off enable pin which can be used to enable or disable the regulator, and the enable pin can be connected to the logic low voltage for low-side switching or logic high for high side switching. The enables input pin can also be used to configure the current limit, allowing for an adjustable maximum load current, which is dependent on the load current and the enable logic state. This enables the device to be used in a variety of applications, as it can be easily configured by a simple logic level toggle.

The MAX6472TA30AD3+T has a very low switch-on voltage of only 10mV, which helps achieve fast recharging of the output capacitor bank, thereby improving the overall efficiency of the system. In addition, the device has very low quiescent current of only 250µA, which helps reduce the overall power consumption. The device also features over temperature protection, which helps protect the device from thermal runaway and potentially damaging it.

The MAX6472TA30AD3+T can be used for a variety of applications, ranging from low power handheld and portable devices to high power computing products. It is commonly used in combination with other components, such as Driver Stages, Sense Amplifiers and Clock Drivers, to design high power integrated power management and power supply systems. The device is ideal for use in applications where adjustable and fixed power supply and very low quiescent current is required due to its low voltage, low switch-on voltage, low noise and current smoothing features.

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