LTC3862HUH

Voltage - Supply (Vcc/Vdd):	4 V ~ 36 V
Supplier Device Package:	24-QFN (5x5)
Package / Case:	24-WQFN Exposed Pad
Operating Temperature:	-40°C ~ 150°C (TJ)
Control Features:	Enable, Frequency Control, Phase Control, Soft Start
Serial Interfaces:	--
Clock Sync:	Yes
Synchronous Rectifier:	No
Duty Cycle (Max):	96%
Frequency - Switching:	75kHz ~ 500kHz
Series:	--
Output Phases:	2
Number of Outputs:	2
Topology:	Boost, SEPIC
Output Configuration:	Positive
Function:	Step-Up, Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Obsolete
Packaging:	Tube

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LTC3862HUH is a controller for DC-DC power supplies in the PMIC - Voltage Regulators - DC DC Switching Controllers. It is specifically designed to make reliable, highly efficient regulator designs.The LTC3862HUH is a fully featured synchronous boost controller that is optimized for the low current industrial, consumer and automotive applications. This device includes a wide range of features that help simplify the power supply design. The LTC3862HUH\'s features include logic detection of input voltage, active voltage position control, selectable peak current limit, adjustable soft start, spread spectrum modulation, energy saving no load mode, on-time selection, current limited startup, and PGOOD monitoring. It\'s these features that make the LTC3862HUH a versatile DC-DC controller that simplifies designs and reduce time to market.The LTC3862HUH is based on LTC\'s patented current-mode control technology and features proprietary features such as cycle-by-cycle peak current limit and Foldback PolyPhaseTM current sharing for up to 18 outputs. It provides synchronous buck, boost and SEPIC capabilities. In addition to its advanced performance, the LTC3862HUH also offers low-cost external components and a low EMI signature. The LTC3862HUH is available in the industry-standard 40-pin and 5mm × 6mm QFN packages.The LTC3862HUH was designed to be used in a broad range of applications such as telecom, server and industrial power supplies, auxiliary DC-DC converters, plus automotive or consumer applications. It provides the power engineer with a wide selection of features and performance to meet tough specifications quickly and economically.The application field of the LTC3862HUH is wide and versatile. The device is suitable for use in various industries and applications such as data centers, servers, telecom, industrial power supplies and consumer applications.The working principle of the LTC3862HUH can be divided into several sections.Firstly, the device has an advanced control architecture that provides cycle-by-cycle peak current limit over the full temperature range. This architecture also offers voltage position control with high precision.Secondly, it has on-time selection, which allows the engineer to select a trade-off between high efficiency and fast response.Third, the spread spectrum modulation feature reduces EMI where it is a major concern, by reducing the harmonic content of the switching signal. Fourth, the device offers a low power sleep mode that reduces the total system power consumption. This mode is entered into via the EN/UV LO input pin.Finally, when used in current-limited applications, the LTC3862HUH can enter the current-limited startup mode. This mode allows the device to compensate for the effect of an open loop system and reduce the inrush current accordingly.The LTC3862HUH is ideal for applications that require extremely efficient power supplies with reliable performance and low EMI signatures. It can accurately run at a wide range of input voltages, allowing for a high degree of flexibility. Its highly efficient operation makes it ideal for a broad range of industrial, consumer, and automotive applications.

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