MIC2131-1YTSE-TR

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The MIC2131-1YTSE-TR is a step-down DC to DC switching controller designed to provide a high application performance, improved power supply efficiency, and minimal external component count. The device offers a low-noise, single-stage, step-down solution for a wide range of AC/DC and DC/DC applications. The MIC2131 provides high currents with a fixed, 1.2V reference output, or a programmable output (selectable between 0.8V and 5.5V). High-efficiency operation is achieved through the incorporation of a high-side MOSFET and a low-side MOSFET. This makes the MIC2131-1YTSE-TR an ideal solution for ad-hoc, mobile and industrial applications.

The device offers a wide range of features to suit a variety of requirements. These include adjustable current limit and an adjustable switching frequency, both of which can be programmed through an I2C interface. The device also features a sleep mode and power good/current limit control for improved system efficiency. The MIC2131 also features unique, advanced complimentary output (ACO) control, which enables the controller to dynamically adjust the switching frequency and output voltage. This allows the device to reduce EMI emissions, while simultaneously improving system stability.

The MIC2131-1YTSE-TR is capable of operating at a maximum output of 5.5V with a 3A current limit or 2.5A when in sleep mode. This feature facilitates a high level of performance in various applications such as automotive, communications and consumer electronics.

The MIC2131-1YTSE-TR incorporates a highly efficient synchronous buck architecture. The high-side MOSFET and low-side MOSFET of the controller handle output loading, enabling a compliant transfer from one state to another. The MIC2131-1YTSE-TR also features differential current sensing for improved loop-compensation and feed-forward control, and includes an integrated low-noise power-supply filter to minimize component count and ensure stable system operation.

In addition, the device includes a range of fault protection features, including output overvoltage, overcurrent and thermal shutdown modes to protect against component damage and/or system malfunction. The device also features a patented current-mode auto-discharge function, which effectively disconnects the load from the power supply when the device is in standby mode. This helps to reduce board space and cost.

The MIC2131-1YTSE-TR is an ideal DC to DC switching controller solution for power supplies in high power applications. With its features for current limit, high efficiency and low noise performance, the device provides a versatile and reliable solution for a wide variety of applications.

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