MIC49300WR

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The MIC49300WR is a voltage regulator that is part of the family of low-dropout (LDO) linear regulators from Microchip Technology. This device is specifically designed to provide very low noise and low dropout voltage to help maximize battery power efficiency, making it especially helpful when operating from limited power sources like battery cells. It is also available in a wide range of output voltages to accommodate multiple applications.

The MIC49300WR is an adjustable or fixed output regulator that is available with a 3.0V to 5.5V output voltage range. It is designed to work with low input sources such as battery cells and solar panels, and is able to supply up to 500mA of continuous output current. The device features a low supply current that can be reduced further by utilizing its shutdown mode. Unlike traditional linear regulators, the MIC49300WR features a very low quiescent current (IQ) load of only 3.2uA in normal operation and 0.3uA in shutdown mode.

The MIC49300WR offers superior noise performance, with very low input noise down to 8uVrms at 10KHz. This is achieved by utilizing low dropout performance, allowing minimal ripple on the output voltage even at low input voltages.

The MIC49300WR is designed to operate over a wide ambient temperature range of -45°C to +125°C. It is available in an SOIC-8 package that is thermally efficient, allowing it to deliver excellent power dissipation at low output voltages. Additionally, it features a reverse current protection that prevents reverse current flow to the input.

The MIC49300WR is ideal for a wide range of applications including battery-powered systems such as digital cameras, handheld devices and portable gaming equipment, automotive systems, and industrial systems. It is also well suited for powering electronics including low dropout regulators, voltage references, switches, audio amplifiers, and RF amplifiers.

The MIC49300WR works on a linear power regulating principle, which is a basic electronic voltage regulating technique. It works by regulating the output voltage of a power source that is adjustable with some form of programming such as a feedback loop. As the output level is requested to change, the internal feedback loop within the linear regulator responds and adjusts the output voltage to the programmed level.

The MIC49300WR linear regulator is highly efficient, with its energy efficiency rating exceeding 90%. It features a low quiescent current, excellent noise performance, and wide temperature range, making it a great choice for projects operating at different power source levels. Additionally, its low dropout performance maximizes battery power efficiency and its wide output voltage range makes it suitable for a variety of applications.

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