The LTM4643EV#PBF is a switching voltage regulator module manufactured by Analog Devices. It is an ultrathin quad module regulator with a configurable 3A output array that incorporates four individually-configurable buck DC/DC controllers, each with an internal 4A/3A or 3A/2.4A synchronous MOSFET. This device is optimized to provide up to 3A of output current with less than 1mm of PCB thickness. It features an input voltage range of 2.3V to 5.5V, comprehensive fault protection functions, and easy-to-use time-saving features such as its integrated spread spectrum clock, prebias start-up, and power-ok/overvoltage protection. The LTM4643EV#PBF also is highly versatile, with adjustable switching frequency, output voltage, and soft-start time. Its integrated fast transient response and excellent line and load regulation make it a great power solution for a wide range of space-conscious applications.