LM25117QPMH/NOPB

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The LM25117QPMH/NOPB is a DC/DC switching controller designed for DC-DC conversion, providing programmable control of switch frequency, deadtime, voltage regulation voltage sensing, and current sensing. It is a versatile device that is applicable in many applications.

The operating principle of LM25117QPMH/NOPB is simple. The device monitors the voltage applied to the input, which passes through the internal current-sense divider circuit. When the voltage is above the programmed threshold, the controller will switch on and allow current to flow through the switch. The current then passes through the internal voltage-sensing divider circuit, and when the voltage is at or below the programmed threshold, the controller will turn off the switch and no current will flow. This helps maintain the desired output voltage.

The LM25117QPMH/NOPB is useful for many applications that require a precisely regulated voltage output. It can be used in converters such as buck, boost and buck-boost, as well as flyback, forward and other converters. It is also useful for LED lighting, LED backlighting, portable power tools, and power management applications.

The LM25117QPMH/NOPB offers several features and benefits. It has a wide operating range, up to 70V input, and allows for programmable peak current detect, adjustable deadtime, voltage regulation, and current sense frequency. It is also designed to withstand a wide range of transient conditions, such as extreme temperatures and EMC interference, and is housed in a small 4 mm × 4 mm QFN package.

In conclusion, the LM25117QPMH/NOPB is a versatile DC/DC switching controller designed for precision voltage regulation. It is ideal for a wide range of applications, including energy-efficient LED lighting, portable power tools, and power management applications. It is highly reliable with a wide input voltage range and adjustable current peak detect, voltage regulation, and deadtime. The LM25117QPMH/NOPB is housed in a small 4 mm × 4 mm QFN package, making it ideal for use in space-constrained designs.

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