LTC3884IRHE-1#PBF

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The LTC3884IRHE-1#PBF is a member of the family of synchronous step-down switching regulators. LTC3884IRHE-1#PBF is a switch-mode operating DC to DC controller with integrated high and low-side MOSFETs that is suitable for a dimmable isolated flyback regulator. It manages output voltage over a wide input voltage range, and features a wide output voltage adjustable range. It also features programmable output current capability that allows users to build very compact power supply designs.

This versatilecontroller is ideal for applications in industrial and consumer AC/DC and DC/DC power conversion. It is used in consumer, commercial and industrial applications such as PoE, UPS, medical and consumer electronics. It can also be used in smart home applications like lighting and power control applications.

The LTC3884IRHE-1#PBF has a wide range of features such as a precision current-mode regulation, which offers excellent line and load regulation. It also has cycle-by-cycle over-current protection, and fault reporting circuitry to help you safely operate it. The device also has very low operating current, low noise protection circuitry, high operating frequency and low level shutdown mode.

The LTC3884IRHE-1#PBF works with a low input voltage and works with a switching frequency up to 2.5MHz, with duty cycle as high as 80%. It has a step-down voltage regulator with a voltage range of 0-80V. It can be used as a single-ended device or a dual-ended device. One of the biggest advantages of this device is its high efficiency, with its low on-resistance power MOSFETs, it can provide up to 95% efficiency, making it suitable for applications where power efficiency is paramount but size, cost and ease of design are still important.

The LTC3884IRHE-1#PBF works with a high-side FET and a low-side FET, both connected to the same control node to provide operation of a voltage in both directions. This controller can be used with the LTC3887 or LTC3889 proprietary flyback converters in bidirectional applications, where it provides a synchronous PWM capability and supports a wide input voltage range from 4.5V to 80V. It allows for automatic current sharing and cascading of converters for higher output currents . For a given load, the output voltage can be adjusted between two specified limits by varying the duty cycle.

The LTC3884IRHE-1#PBF also offers programmable gate drivers for the FETs, allowing for higher switching speeds and less switching losses. It has a soft-start feature that prevents output from varying at startup, minimizing start-up current and making the power supply more reliable. The thermal shutdown and current limit protection ensures that the load will be protected if the internal temperature gets too high or if there is an overload or short circuit. The chip also provides a power saving power saving mode, allowing the device to enter a low power state when the input voltage drops to low.

In summary, the LTC3884IRHE-1#PBF is a highly efficient and reliable DC to DC switching controller with integrated high and low-side MOSFETs. It provides a wide input voltage range and features a wide output voltage adjustable range, programmable output current capability, precision current-mode regulation, cycle-by-cycle over-current protection, fault reporting circuitry, low operating current, low noise protection circuitry, high operating frequency and low level shutdown mode, and power saving power saving mode. It is a suitable solution for many applications in industrial, consumer, and medical electronics.

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