LTC3862EUH-2#PBF

The LTC3862EUH-2#PBF is a high voltage, high power synchronous buck switching regulator controller from Linear Technology. This family of devices is designed to operate from inputs of up to 40V, and can deliver output currents up to 30A. The LTC3862EUH-2#PBF offers an integrated FET driver, 100% duty cycle capability, and adjustable frequency as low as 100 kHz to enable the design of very efficient and low-noise power supplies.

The LTC3862EUH-2#PBF is a part of Linear Technology’s PMIC - Voltage Regulators - DC DC Switching Controllers product family. As a PMIC, the LTC3862EUH-2#PBF is a power management integrated circuit (PMIC), which is any integrated circuit that manages the power for an entire system, or for a discrete subsystem within a system. A Voltage Regulator is an electronic component that, using power transistors, converts a fluctuating or varying input voltage to a steady, constant output voltage. DC-DC switching controllers are integrated circuits that regulate a design’s operating voltage from the input voltage.

The LTC3862EUH-2#PBF synchronous buck-switching regulator controller is designed for use in applications such as servers, PCs and workstations, portable devices, storage peripherals, telecom base station power supplies, and medical instruments, as well as high power industrial, test and measurement, automotive, and consumer products. It is perfect for cost effective point-of-load conversion.

The LTC3862EUH-2#PBF features a high peak current (IPK) mode that allows the device to support higher load currents (for shorter periods of time) than a standard switching regulator controller. The device also has a patented “Constant On-Time” (COT) current mode control architecture, which simplifies compensation and optimizes the transient response. It incorporates a thermal foldback feature for reduced stress under overload, and has excellent thermal performance, as well as high efficiency.

The LTC3862EUH-2#PBF is a good choice for applications that require high current or very low noise, and its wide input voltage range (up to 40V) and floating design make it ideal for high power supplies or POL converters. It is guaranteed to operate over a wide temperature range (junction temperatures from -40°C to 150°C). Additional features such as programmable soft-start, Power Good output, and selectable frequency reduce the number of external components needed, simplifying the design effort.

In conclusion, the LTC3862EUH-2#PBF is an ideal controller for high efficiency and low noise synchronous buck-switching regulator applications. It operates over a wide input voltage range and utilizes a patented current mode architecture for proper compensation. Its wide temperature range and thermal foldback features make it a good choice for applications that require high current or very low noise, while its short circuit protection and Power Good feature add extra safety and protection to the system.