MIC4950YFM-T5

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Overview

The MIC4950YFM-T5 is a signal input, high frequency, step-up DC/DC switchmode regulator series. The series includes all the necessary functions to regulate output voltage up, down, and equal to the signal input voltage. It is specifically designed to provide users with substantial design benefits, including excellent voltage accuracy, improved efficiency, reduced design cycle, and energy savings.

Application Field and Working Principle

This DC/DC switchmode regulator series is ideally suited for a wide range of 8-32V input voltage applications in which a variable or fixed output voltage of up to 2200V is required. It is suitable for powering high-voltage loads, generating supply for battery charging, defining a required output voltage, or providing wide-range, variable-voltage supplies. The MIC4950YFM-T5 is composed of a low-noise oscillator, internal switch, and control circuits. Its unique high-frequency architecture minimizes the size and weight of the inductor and total components, making it suitable for applications that require minimal space. The MIC4950YFM-T5 uses a larger input voltage as an input signal to generate higher output voltage. The signal input voltage can be initially set with an external voltage reference (VREF). When the output voltage is equal to the signal input voltage, it is in the steady state. The system will then automatically shift to Pulse Width Modulation (PWM) mode, modulating the width of the pulse to regulate the output voltage.

Performance Advantages

The MIC4950YFM-T5 boasts a slew of performance advantages, including a high efficiency of up to 95%, low quiescent current of 25uA, low noise levels (less than 0.2mVrms P-P), and a small form factor of just 2.54mm x 1.14mm x 0.53mm. The MIC4950YFM-T5 provides excellent protection features, including thermal shutdown, surge protection, reverse voltage protection, and over voltage protection. The device also has a fast transient response time and wide temperature operating range, allowing it to continue to be stable and reliable even in extreme conditions. Furthermore, this regulator series offers low leakage current and improved transient performance, resulting in a wide variety of benefits, including enhanced system power efficiency, reduced power-supply noise and EMI, and minimal component count.

Conclusion

The MIC4950YFM-T5 is a signal input, high frequency, step-up DC/DC switching regulator series. It provides excellent voltage accuracy, high efficiency, reduced design cycle time, and energy savings. It is designed for a wide range of 8-32V input voltage applications in which a variable or fixed output voltage of up to 2200V is required. The series offers a slew of performance advantages and protection features, such as thermal shutdown, surge protection, reverse voltage protection, and over voltage protection. As such, it is the ideal solution for powering high-voltage loads, generating supply for battery charging, defining a required output voltage, or providing wide-range, variable-voltage supplies.

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