MIC37300-1.5BR TR

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Linear voltage regulators are a popular form of energy conversion within electronics, yielding adjustable voltage and current for depletion or enhancement mode applications. The MIC37300-1.5BR TR is a linear voltage regulator from Micrel, Inc. that is designed to meet a wide range of precision requirements. In this article, we will take a look at the application field and working principle of the MIC37300-1.5BR TR.

Application Field of MIC37300-1.5BR TR

The MIC37300-1.5BR TR is a high-precision, low-dropout (LDO) linear voltage regulator for use in a wide variety of applications. It has been designed for use in DVD players, portable music players, cellular phones, disk drives, portable power supplies, and other precision applications. This part features programmable dropout voltage, low-output noise and low-input ripple, and can provide up to 1.5A of output current.

The MIC37300-1.5BR TR can be adjusted to provide an output voltage anywhere between 0.8V and 6.0V, with a maximum load current of 1.5A. It has low-noise operation, ultra-low dropout voltage, extremely low-input ripple, excellent dynamic response, and good stability with line and load transients. The MIC37300-1.5BR TR also includes an internal current limit to prevent overload and thermal shutdown protection, so that it can be used safely in high-power applications.

Working Principle of MIC37300-1.5BR TR

The MIC37300-1.5BR TR is a linear voltage regulator that works on the principle of "regulating" the output voltage by adjusting the series resistance of a pass transistor. The higher the resistance, the higher the output voltage, and vice versa. The MIC37300-1.5BR TR is designed to provide precise, low-dropout voltage regulation by controlling the amount of series resistance between the input and output. This is accomplished by using a feedback circuit that compares the output voltage to a reference voltage (usually 2.5V) and adjusts the resistance accordingly.

The MIC37300-1.5BR TR includes a built-in circuit with a low-R sense, enabling the device to respond quickly to changes in load current or line voltage. This makes it ideal for applications that require very fast load transient response and excellent line regulation, such as those found in DVD players, disk drives, cellular phones and portable power supplies.

The MIC37300-1.5BR TR also includes an output voltage over-current protection, a thermal shutdown feature to prevent excessive power dissipation, as well as an enable pin for remote shutdown control. These features make the MIC37300-1.5BR TR an ideal choice for a variety of precision voltage regulation applications.

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