LM4128CMFX-1.8

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The LM4128CMFX-1.8 is part of the PMIC - Voltage Reference family. It is an ideal power solution for many applications, delivering precision power with fast transient response times. The LM4128CMFX-1.8 was designed to provide clearly superior performance over linear regulators and highly efficient switching regulators. Its wide operating temperature range, small footprint and wide input voltage range makes it a great solution for many product development projects.

The LM4128CMFX-1.8 is a fixed output voltage reference, featuring precision accuracy performance. It allows for reliable and repeatable design margins through its highly precise fixed output voltage reference. This makes it ideal for applications where a supply voltage of 1.8V is needed.

The LM4128CMFX-1.8 features an integrated switching regulator which helps reduce radiated emissions, a wide operating temperature range (from -40°C to 125°C), a 4-pin SOT-23 package, and a low quiescent current (IQ) of 12mA. It also incorporates an integrated current limiting system and soft start circuit, making it one of the most efficient, advanced and reliable power solutions available.

To understand how LM4128CMFX-1.8 works we need to look at the circuit design. At the heart of the regulator design is the DC-to-DC buck converter, which is responsible for providing a constant output voltage. It works by taking advantage of the MOSFETs in the circuit to toggle the output voltage, thereby allowing for high switching frequencies and low output ripple. The LM4128CMFX-1.8 also includes voltage feedback and current limiting to ensure that the desired output is maintained without any overload conditions occurring.

The LM4128CMFX-1.8 is ideal for many applications in various fields, especially those where power density and efficiency is important. Examples of typical applications include:

• Cellular Phone Battery Chargers
• Video Application
• Low Voltage DC-DC Converters
• Wireless Headsets
• Notebook Power

The LM4128CMFX-1.8 has truly changed the landscape in power systems design with its mid range output voltage, superior transient response, wide input voltage range and improved power efficiency. With its cutting-edge technology and consistent performance, the LM4128CMFX-1.8 is the perfect choice for many product development projects.

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