LTC3816EFE#TRPBF

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The LTC3816EFE#TRPBF is a dual, 180mΩ, low-side power switch that incorporates a synchronous rectifier with current-mode control. This power switch is optimized for synchronous buck configurations. The integrated current-sense amplifier senses the synchronous rectifier current and drives the gate of the power switch as needed to minimize switching losses. It also features low RDS(on) and low turn-on times. Most importantly, it features fast transient response when current is ramped up or down.

The LTC3816EFE#TRPBF application field and working principle makes it an ideal device for high-performance point-of-load (POL) regulators, where high efficiency, low quiescent current and fast transient response are important criteria. This device also is especially useful in high-load current applications, such as powering an FPGA core, where the occasionally high peak currents may be beyond the capabilities of a smaller package.

This dual power switch offers a very high level of performance, providing a wide range of features to ensure reliable operation, including inherent fault protection, current-limiting, thermal shutdown, and overvoltage protection. Additionally, it is optimized for use in applications requiring low noise, small size, and high efficiency. The LTC3816EFE#TRPBF is capable of driving very small loads, such as microprocessors, FPGA cores, and small loads associated with telecom applications. It is also capable of driving medium to high power loads found in more traditional circuits such as voltage regulators, motor drives, and gate drivers.

The LTC3816EFE#TRPBF is capable of operation up to 42V, making it especially well suited for use in automotive applications, such as controlling actuator power, stepper motor drives, or buck regulators supplying 48V loads. It is also easily integrated into many other circuitry requiring power handling capability, such as DC/DC converters.

The LTC3816EFE#TRPBF is based on the industry-standard voltage regulator design, in which the primary sources of energy is the unregulated input and the secondary sources of energy is the regulated output. The application of this device begins with the input voltage being applied to the input of the LTC3816EFE#TRPBF, which begins the process by supplying and regulating the output voltage. The internal topology then turns the control voltage from the regulator into a control current, which is received by the power switch in order to control the power switch\'s switching frequency, duty cycle, and current. The current is then fed into the synchronous rectifier, which is used to return any unwanted energy to the source.

The LTC3816EFE#TRPBF is capable of providing up to 17A of output current, with a dropout voltage as low as 40mV. The switched mode operation provides a significant advantage over traditional linear regulators in that they are much more efficient, due to the reduced power losses associated with the switching frequency, as well as having a much lower dropout voltage than their linear counterparts.

The LTC3816EFE#TRPBF is a flexible and capable device, capable of powering a wide variety of loads. It is especially suited for applications requiring fast transient response, high efficiency, and high output current. Its integrated switching and sensing features provide for very rapid current limiting, overvoltage protection, and short circuit protection in order to ensure reliable operation. The LTC3816EFE#TRPBF is a great choice for designers looking for high power, high efficiency, and fast transient response at a very cost-effective price.

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