LM3673TLX-1.8/NOPB

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The LM3673TLX-1.8/NOPBis a DC-DC switching regulator. It is a current mode device which regulates output voltage by switching an internal N-Channel MOSFET. It supports variable frequency operation with range of 500 kHz to 2.0 MHz, allowing selection of switching frequency to minimize external component size and optimize efficiency.

The LM3673TLX-1.8/NOPB is a voltage regulator from the Power Management Integrated Circuit (PMIC) family. It features voltage regulation of up to 1.8V and is ideal for low power applications such as notebooks, cameras, portable media players and other consumer electronics. The device operates from an input voltage of 4.0 V to 20 V and delivers a maximum output current of 2 A. It includes an internal driver for an N-channel MOSFET for greater efficiency.

The LM3673TLX-1.8/NOPB offers several features that make it attractive to designers of consumer electronics applications. It includes over voltage protection, thermal shutdown, cycle-by-cycle current limit and foldback current limit. It also offers programmable soft-start, UVLO and Hiccup mode protection. Integrated power switch on/off control further simplifies the design process.

In terms of its working principle, the LM3673TLX-1.8/NOPBcontrolls the output voltage by monitoring the feedback voltage. The feedback voltage is compared to an internal reference voltage to determine the duty cycle generated by the internal pulse-width modulation (PWM) control circuitry. If the feedback voltage is lower than the reference voltage, the duty cycle is increased until the output voltage is at the desired level. If the feedback voltage is higher than the reference voltage, the duty cycle is decreased until the output voltage is at the desired level.

The LM3673TLX-1.8/NOPB is a cost-effective solution when compared to traditional linear regulators. Its high efficiency, fast transient response and low voltage drop-outs make it suitable for powering a variety of electronics devices. Its small form factor, wide input voltage range, low quiescent current, adjustable output voltage and integrated power switch further increase its utility.

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