MIC2159YMME-TR

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Introduction:

The MIC2159YMME-TR is an integrated power supply voltage regulation and control solution which is specifically designed for demanding DC-DC switch mode applications. This reliable and cost-effective, high-performance solution requires very few external components and allows for an easy design of a low-noise, high-efficiency and high-current regulator. It is widely used in many applications, including portable electronic equipment, battery-powered systems, and other varying applications that are available in the industrial, automotive, telecom and home control markets.

Application Field:

The MIC2159YMME-TR is used to regulate and control power supply voltages in demanding DC-DC switch mode applications. This integrated power supply solution provides outstanding dynamic performance, allowing the design of a very low noise, high-efficiency, and high-current voltage regulator with few external components. It is ideal for use in many demanding applications such as portable electronic equipment, battery-powered systems, and other applications in industrial, automotive, telecom, and home control markets.

The MIC2159YMME-TR is particularly suitable for applications such as cellular phones, portable computers and PDAs. It can also be used in automotive applications such as in-vehicle power supplies, battery power systems, and LED lighting. The MIC2159YMME-TR can also be used in home appliances including washing machines, refrigerators, and air conditioners.

Working Principle:

The MIC2159YMME-TR uses a synchronous buck topology to regulate the output voltage. It has two input pins, one of which is a high voltage source, and the other one is ground. It also has two output pins, one of which is the regulated output voltage, and the other one is the feedback voltage. The voltage at the feedback pin is compared to a reference voltage, and the error amplifier then adjusts the output voltage accordingly. The PWM control circuit receives the output from the error amplifier and uses it to generate a pulse width modulated (PWM) signal. This PWM signal is then sent to the main switching stage which consists of two power MOSFETs, one of which is an N-channel and one of which is a P-channel. The N-channel MOSFET is used to control the on/off switching of the output voltage, while the P-channel MOSFET is used to reduce the electrical current flowing through the main MOSFET at higher voltages.

The output voltage is monitored by the voltage divider circuit and the feedback signal is compared with the reference voltage. The error amplifier then adjusts the output voltage to match the reference voltage. The MIC2159YMME-TR provides excellent dynamic performance, allowing for a very low-noise, high-efficiency, and high-current voltage regulator. It also has built-in protection features such as over-voltage and over-current protection, as well as soft-start and shoot-through protection.

Conclusion:

The MIC2159YMME-TR is a cost-effective and reliable integrated solution for DC-DC switch mode applications, designed for high efficiency and low-noise performance. It has few external components and excellent dynamic performance, allowing for the design of a highly efficient and high-current voltage regulator. It is ideal for many challenging applications including portable electronics, battery-powered devices, and home appliances. It incorporates many safety features such as over-voltage and over-current protection, as well as soft-start and shoot-through protection.

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