LT1766IFE-5#PBF

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LT1766IFE-5#PBF is a monolithic switching regulator containing all the necessary active components to produce a high efficiency low ripple power conversion in a very compact space. It is designed to be a high voltage, high current DC to DC switched regulator that can provide up to 5 amps output current from an input voltage range of up to 34V. It can be used to step-down any wide input voltage to any lower regulated DC voltage with highly accurate stability.

The LT1766IFE-5#PBF is a member of the LT17xx family of monolithic integrated circuit regulators specifically designed to regulate the output of a DC-DC switch mode power converter. The device integrates all of the system functions necessary to operate in either step-down or step-up applications. These products are designed to operate at switch frequencies up to 1 MHz and offer built-in short-circuit protection, auto-restart and true shutdown capability. The LT1766IFE-5#PBF is offered in either Lead-free (PbF) or RoHS compliant packages with different pin requirements.

The basic integrated circuit block diagram of the LT1766IFE-5#PBF includes a high voltage switch, voltage error amplifier, current up/down converter, and an internal reference. The device combines a unique power factor correction (PFC) control circuit with an advanced switchmode converter to provide high efficiency, low noise operation. It also features very accurate voltage regulation and a wide dynamic range of output current and adjustable output voltage with 1% accuracy. The device includes a low pass filter which helps reduce AC components on the inputs, providing improved power factor regulation.

In terms of applications, the LT1766IFE-5#PBF can be used in many different applications such as distributed power, battery chargers and power supplies, portable music and audio devices, test and measurement equipment, automotive systems, computers and peripherals, and medical applications. It is also suited for green power and energy storage applications due to its high efficiency and low power losses.

The overall working principle of the LT1766IFE-5#PBF is simple. When the input voltage is applied, the internal error amplifier and comparator sense the output voltage. The error amplifier and comparator generate a control signal which drives the high voltage switch. As the switch turns ON, a high-frequency current is sent from the input to the output, generating a low ripple regulated output voltage and high efficiency conversion.

In summary, the LT1766IFE-5#PBF is the perfect choice for high voltage, high current DC to DC switched regulator applications with its wide input voltage range, built-in short circuit protection, auto-restart and true shutdown capabilities and high efficiency and low noise operation. It is a cost effective solution for distributed power, battery chargers and power supplies, automotive systems, medical applications, green power and energy storage applications

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