LTC3634MPFE#PBF

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The LTC3634MPFE#PBF is a family of high power special purpose voltage regulators developed by Linear Technology Corporation, that are based on a proprietary special purpose topology suitable for commercial and industrial applications. These voltage regulators are available with dual output current ratings of up to 10A and output voltage ratings up to 24V. The active PFC technology reduces the typical input voltage ripple and maximizes power efficiency. The device also has thermal and over-power protection.

Product overview

The LTC3634MPFE#PBF family of voltage regulators feature a low noise, single-rail, constant frequency voltage regulation design with active power factor correction (PFC) technology. The versatile switching PWM converter operating frequency can be set up to 600kHz, making it ideal for applications such as power-over-Ethernet, battery chargers, and many more special purpose power management applications. This family offers a wide input-output voltage differential and can operate from a wide input voltage range of 8V to 72V.

The device provides dual PCB mount voltage regulation with output current ratings of 10A and output voltage ratings of up to 24V. The active PFC technology reduces the typical input voltage ripple and maximizes the power efficiency. The device also has thermal and over-power protection.

The LTC3634MPFE#PBF is housed in a thermally enhanced, high-reliability 3mmx5mm thermally enhanced QFN Package. This family of voltage regulators is suitable for use in applications such as industrial and communications, automotive, consumer, and medical.

Application field

The LTC3634MPFE#PBF family of voltage regulators have been designed for applications requiring high output power for a wide input voltage range and with the capability of active power factor correction. This family is suitable for various applications including industrial and communications, automotive, consumer, and medical applications.

The LTC3634MPFE#PBF voltage regulator can be used in a variety of applications that require dual output voltage regulation including power over Ethernet (PoE) applications, DC/DC converters and battery chargers, automotive power management applications, medical imaging and instrumentation, point-of-load (POL) converters, and high efficiency point-of-use supplies.

Working principle

The LTC3634MPFE#PBF operates using a single-rail, constant frequency switching PWM design with active PFC. This type of regulation allows for a wide input-output voltage differential and extremely low input voltage ripple. The active PFC technology reduces the typical input voltage ripple and maximizes power efficiency.

The LTC3634MPFE#PBF uses an on-chip oscillator to control the voltage regulation loop. The oscillator frequency is adjustable from 0.5MHz to 600kHz, allowing designers to optimize the design for their particular application. It also includes thermal and over-power protection to prevent damage to the device and maintain the system load.

In addition, the LTC3634MPFE#PBF has a range of additional features that enable developers to increase system efficiency and performance. These features include under-voltage lockout, remote voltage programming, soft-start, and diagnostic functions.

Conclusion

The LTC3634MPFE#PBF family of voltage regulators from Linear Technology Corporation is an advanced, high power, single-rail, constant frequency switching PWM design with active PFC designed for applications requiring high output power for a wide input voltage range. The device is ideal for applications such as power over Ethernet, battery chargers, and high efficiency point-of-use supplies.

The active PFC technology reduces the typical input voltage ripple and maximizes the power efficiency. The device also features thermal and over-power protection, under-voltage lockout, remote voltage programming, soft-start and diagnostic functions. The LTC3634MPFE#PBF is housed in a thermally enhanced, high-reliability 3mmx5mm thermally enhanced QFN package.

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