MIC2296YML-TR

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The MIC2296YML-TR is a device in the power management integrated circuit (PMIC) voltage regulators family and is part of the DC-DC switching regulators. It is a monolithic step-down switching regulator, designed to deliver up to 10A continuous current over a wide input voltage range of 2.9V to 32V. This voltage regulator has all the features necessary to implement cost-effective, step-down switching regulator designs. The device operates at a fixed frequency of 250kHz, minimizing the external components while offering good thermal efficiency. It also includes comprehensive protection features such as adjustable current limit, thermal shutdown, and short-circuit shutdown. Its low quiescent current of 10μA at no load makes it suitable for low power applications.

The MIC2296YML-TR step-down converters have excellent current mode control characteristics, making them stable over a wide range of conditions. They have both a fixed switching frequency and a programmable frequency, allowing the user to design a solution to match the desired output current ripple, external components size, and cost requirements. It has a low standby current of 2μA, allowing for optimal power saving when the load is low. The device also includes an adjustable soft-start feature that allows the user to control the inrush current when the system is being powered up.

This step-down voltage regulator is ideal for supplying a wide variety of loads, including small motors, LEDs, sensors, and more. Its adjustable current limit and fast response to transient load makes it easy to optimize the system performance. The MIC2296YML-TR is also designed to provide high efficiency over a wide input voltage range, making it suitable for battery powered applications. The device is available in a small 12-lead 3x3mm TQFN package which offers good thermal performance.

The MIC2296YML-TR voltage regulator works by converting a higher input voltage to a lower regulated output voltage. It uses a buck topology to achieve the voltage conversion. A single inductor is used to provide the necessary energy storage. A high-side switch and a low-side switch are used for integrating the AC signal from the input voltage to create a stable DC output voltage. The current mode control circuitry is used to regulate the output voltage, by controlling the duty cycle of the switches, based on the output voltage level and the feedback signal from the output. The output voltage can be programmed by adjusting the feedback voltage to a predetermined level.

In addition, the MIC2296YML-TR offers multiple protection features such as an over-voltage, an over-current, a thermal shutdown and a reverse-input protection. The over-voltage protection (OVP) prevents the output voltage from exceeding the set point value. The over-current protection (OCP) prevents the device from delivering excessive current to the output and the thermal shutdown (TSD) feature prevents the device from overheating by shutting off the output when the device temperature reaches a certain level. The reverse-input protection (RIP) prevents the device from operating when the input voltage is applied in the wrong direction.

The MIC2296YML-TR is a versatile and efficient step-down switching regulator solution for a wide variety of applications. Its wide input voltage and adjustable current limit capabilities make it excellent for providing a regulated supply in battery powered systems, small motors, LEDs and peripherals. The adjustable soft-start feature and comprehensive protection schemes ensure it is well suited for a variety of applications with excellent results.

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