MIC38C42-1BM-TR

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Power management integrated circuit (PMIC) is a type of semiconductor device that functions as part of an integrated circuit to perform power management functions. PMIC devices are mainly used as AC-to-DC or DC-to-DC converters, offline switchers, regulators, or inverters. The MIC38C42-1BM-TR is a family of PMIC devices and is an example of a PMIC AC-to-DC converter.

The MIC38C42-1BM-TR is a low quiescent current, PWM voltage regulator with built-in power-down circuitry. It is designed to convert an AC line voltage of 130 to 300VAC into a regulated 3.3V output and is capable of supplying up to 1.5A of output current. The device is made using an advanced CMOS process and has many features to make it ideal for a wide range of applications. It is well suited for use in automotive, industrial, and consumer applications.

The MIC38C42-1BM-TR can be used in applications such as DC-to-DC converters, power supplies, and voltage regulators in personal computers and workstations. It can also be used in automotive power conversion applications, industrial switching power supplies, and in consumer power conversion applications. The device is also well suited for use in medical applications such as for medical imaging and life support equipment.

The MIC38C42-1BM-TR can be used for a variety of voltage regulation applications such as providing regulated power to digital and analog circuits, or for general-purpose power supply management. The integrated over-voltage and over-current protection functions provide reliable and robust system operation. The device also provides an internal operating temperature sensing capability and thermal protection against temperature overshoot.

The MIC38C42-1BM-TR incorporates high-frequency current mode control, programmable soft start, and duty cycle modulation. Fixed frequency current-mode control eliminates the need for external components at normal supply voltage and output levels, and reduces overall cost and solution size. The device offers excellent loop stability and dynamic response over fluctuations in supply voltage and load conditions. The programmable soft start feature helps minimize the output voltage overshoot due to the start up of heavy loads.

The MIC38C42-1BM-TR is designed with an under-voltage lock out (UVLO) threshold of 11.8V. This ensures that no damage is done to the device due to operating conditions with a supply voltage below the minimum required level. The duty cycle modulation feature allows the device to maintain a stable output voltage regardless of changes in the supply voltage.

Finally, the device is designed to be used with a logic controlled power fail pin that provides the option to power down the device during periods of inactivity, such as during power cycling. The power fail pin is also used to turn off the device during power-down or standby modes. This pin is controlled by an external logic signal and can be used to reduce the current consumption of the device during periods of inactivity, saving energy and cost.

In summary, the MIC38C42-1BM-TR is a low quiescent current, PWM voltage regulator that is ideal for a variety of power management applications. It has a built-in power-down circuitry, an on-chip temperature sensing capability, and fixed frequency current-mode control. It also has a programmable soft start feature and a duty cycle modulation feature. The device is designed with an under-voltage lock out (UVLO) threshold of 11.8V, and a logic controlled power fail pin that can be used to power down the device during periods of inactivity. The MIC38C42-1BM-TR is well suited for use in automotive, industrial, and consumer applications.

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