LP3971SQ-W416/NOPB

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The LP3971SQ-W416/NOPB is an integrated circuit integrated in a Power Management Special Application which is ideal for portable applications that require excellent power supply performance. The device is based on a sophisticated multipass architecture that achieves high efficiency and low output ripple for output currents up to 500 mA and input voltages up to 5.5V. In addition, the LP3971SQ-W416/NOPB has an adjustable output voltage capability, programmable output current limits, short-circuit protection, and an adjustable soft-start time, making it one of the most versatile power management solutions.

The LP3971SQ-W416/NOPB features an integrated wide range high frequency synchronous converters that operates in buck or boost topology mode. In buck operation, the device supports a wide input voltage range (2V to 5.5V) with an adjustable output voltage up to 3.3V. In boost operation, the device supports a wide input voltage range (2V to 5.5V) with an adjustable output voltage up to 5V.

The device utilizes a high frequency charge-pump architecture that provides excellent power conversion efficiency. The LP3971SQ-W416/NOPB supports ultra-low noise operation, with a power supply noise of less than 30 μVRMS, due to its patented spike noise suppression technology. In addition, the device features built-in sequencing and hot-plug monitoring, programmable current limit, adjustable soft-start time, as well as integrated over-current, thermal and short-circuit protections.

TheLP3971SQ-W416/NOPB is ideal for low power applications such as system adapters, battery-powered adapters, portable computers, digital cameras, PDA’s, and others. In addition to its low power capability, the LP3971SQ-W416/NOPB is also capable of providing high power output levels, up to 500 mA. With this capability, the device is also suitable for a variety of applications, such as appliances, home theater, projectors and displays, automotive, and others.

The LP3971SQ-W416/NOPB device features a small form factor package and is designed to be extremely low power. The device’s low power, small form factor and high efficiency makes it ideal for portable applications that require excellent power supply performance.

The LP3971SQ-W416/NOPB application field and working principle are that it is capable of providing high power outputs up to 500mA, with an operating voltage range of 2-5.5V. The device utilizes a high frequency charge-pump architecture along with a multipass architecture which results in low output ripple and high efficiency. The device is ideal for low to medium power consumption applications such as system adapters, battery powered adapters, digital cameras, and others.

The LP3971SQ-W416/NOPB also features built-in sequencing and hot-plug monitoring as well as a programmable current limit, adjustable soft-start time, and integrated over-current, thermal and short-circuit protections. In addition, the device can be programmed with an adjustable output voltage, ranging from 0.6V to 3.3V for buck topology and from 0.6V to 5.0V for boost topology.

The LP3971SQ-W416/NOPB is designed to provide excellent power supply performance while working in low power settings. The device is capable of providing ultra-low noise operation, with a power supply noise of less than 30 μVRMS, due to its patented spike noise suppression technology. In summary, the LP3971SQ-W416/NOPB is an ideal integrated circuit for portable applications which require excellent power supply performance, high efficiency, and low output ripple.

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