MCP16251T-I/MNY

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The MCP16251T-I/MNY is a high-frequency, high-efficiency, synchronous buck DC/DC switching regulator. It is designed to reduce system size and reduce power consumption in a wide range of applications, including mobile phones, portable media players, notebooks, and desktops. The device provides excellent performance with small size and high power efficiency, and low quiescent current.

The MCP16251T-I/MNY is a 1A, 6V to 24V input, adjustable output regulator in an 8-pin SOIC Package. The device is based on a MOSFET power switch and a charge-pump based drive scheme that eliminates external switching components, allowing the device to operate up to 1 MHz while providing excellent efficiency and superior EMI performance. The device uses synchronous rectification to improve efficiency, and features overcurrent protection, short-circuit protection, and thermal shutdown. The controller operates from 4.5V to 24V operating voltage range. The device achieves up to 98% efficiency for low input voltage to low output voltage conversion. The output voltage is adjustable from 0.6V to VOUT_IN. It includes an internal POR for fast start-up and integration of several safety features.

The MCP16251T-I/MNY has a wide range of applications, depending on the input voltage and output voltage requirements. It can be used in mobile battery-operated systems to provide regulated intermediate DC voltage to increase the available power while extending battery life. It can also be used in systems such as chargers, portable medical equipment, gaming systems, surveillance systems, and other systems that require low input voltages with high efficiency output ratings. Another application of the device is in DC/DC applications such as computer notebook adapters, other low power DC/DC power supplies, and low power point-of-load adapters. The device is also suitable for automotive application, such as automotive dashboards and cameras.

The MCP16251T-I/MNY is suitable for integrated LCD power systems. With its wide operating voltage range, extremely low quiescent current, and excellent light load efficiency, it provides high quality power output, even at low input voltages. The device integrates several protection features so it can be used in a variety of applications where protection from overcurrent, shortcircuit, and thermal overload is critical. Additionally, its high switching frequency, synchronous rectifier, and low on-resistance FETs help reduce the number of external components, making it cost effective for space-constrained designs.

The working principle of the MCP16251T-I/MNY is based on a synchronous buck converter, which is a type of DC/DC converter. The synchronous buck converter creates an output voltage by using switching elements to draw power from an input voltage source, and pass it through a filter network to create an output voltage. The converter uses a series of inductors, capacitors, and resistors, to change the input voltage into a usable output voltage, which is then regulated by a controller.

The switching elements in the MCP16251T-I/MNY consist of a MOSFET power switch and a charge-pump based drive scheme. The control circuit monitors the output voltage, and adjusts the switching elements accordingly to maintain the output voltage. The feedback control loop helps stabilize the output voltage and correct any fluctuations due to load changes or environmental changes.

The MCP16251T-I/MNY is a versatile and efficient device that provides high quality power output and protection against overcurrent, short-circuits, and thermal overload. Its wide input voltage range, integrated protection features, and high switching frequency make it ideal for applications that require intermediate DC voltages with high efficiency ratings.

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