LTC3203BEDD#PBF

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The LTC3203BEDD#PBF belongs to the PMIC - Voltage Regulators - DC DC Switching Regulators category. It is a monolithic, dual-channel, switching regulator controller that features a single input power source and programmable outputs. This device enables three distinct conversion topologies of constant frequency current mode: step-down, step-up, and step-down-to-semi-buck. The input voltage range is from 2.5V to 28V. It supports wide variable switching frequencies that is programmable up to 2.4MHz, with a minimum output voltage of 0.6V.

The LTC3203BEDD#PBF operates in current mode, with a cycle-by-cycle current limit and constant frequency operation. This is done via an internal oscillator, which can be synchronized to an external clock and/or allow enabling or disabling of the PWM outputs. The selectable frequency range enables the design of optimized circuits, with either fast transient response or low EMI and with minimum external components required. The LTC3203BEDD#PBF supports up to 1.2A peak load current on a given channel, providing a regulated output voltage with good line and load regulation.

With its unique and intuitive architecture, the LTC3203BEDD#PBF provides a variety of features that can be easily tuned via external resistors, including reference voltage and SoftStart. Its double-ended current sensing feature allows for precise on-time control even for transformer structures, enabling accurate selection ofboundary or pulse-skipping control. The device also features an active pre-bias start-up circuit that provides an uninterrupted start-up cycle in the presence of an already existing pre-bias output.

The LTC3203BEDD#PBF is designed to operate in harsh environments and during power-down sequences. Its OV and UV protection helps the device to maintain its output levels even when the input power is removed. The built-in circuitry also protects the device from overtemperature conditions and thermal runaway.

The LTC3203BEDD#PBF is widely used in applications that need efficient and reliable power supplies, such as communications systems, computing applications, optical networking, multi-port base station routers, and other industrial components. It is also suitable for automotive applications, where its overload and over temperature protections are highly appreciated.

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