The LTC3900ES8TR#PBF is a high voltage boost converter from Analog Devices. This part is designed to convert a low voltage input into a higher voltage output. The chip has a wide input voltage range of 4V to 40V, and it is capable of supplying up to 40W of output power at up to 40V. Additionally, electrical noise and ripple are reduced thanks to integrated EMI noise filtering. The chip includes a 1A internal high side power switch and a 0.2A low side power switch, so it can operate with both low and high current loads. The output voltage is adjustable with an external voltage divider, and it can operate in either PFM or PWM mode. Temperature protection, overvoltage and overcurrent protection are also integrated.