LTC3862EGN-2#PBF

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PMIC - Voltage Regulators - DC DC Switching Controllers

LTC3862EGN-2#PBF is a versatile DC to DC switching controller or Power Module for driving N-channel external power MOSFETs. This power module uses world-class-leading technology to provide precise measurement, control, and efficient regulation for applications requiring high voltage, current or power and very precise control. It is specially designed to handle high-power applications, capable of delivering up to 4 A peak output current and up to 100 V output voltage.

Application Fields

LTC3862EGN-2#PFB is ideal for a wide range of applications, including portable electronic devices and consumer appliances, automotive, industrial and medical systems. It is suitable for driving brushless DC motors, fuel pumps, and heating elements. It can also be used for 24 V to 12 V intermediate bus converters, DC-DC changers such as boost, buck, and buck-boost converters. Its high efficiency makes it a perfect match for mobile equipment powered by batteries.

Working Principle

The LTC3862EGN-2#PBF power module works by controlling the gate voltage of an external N-channel MOSFET, thereby regulating the current flow in the external circuit. It has a voltage-mode control topology, which has several advantages over traditional PWM control, including much smaller filter size, less inductor and capacitor costs and faster transient response. The module has an external clock signal generator, which allows it to be synchronized to the external signal, to eliminate noise and select the desired frequency. The module also has a current-mode control loop, which can be enabled to reduce the output voltage ripple, and to ensure the maximum efficiency. The module also has output voltage and current monitoring, to ensure the output is always within the specified range.

In summary, LTC3862EGN-2#PBF is an efficient DC to DC switching controller or Power Module for driving N-channel external power MOSFETs. It is suitable for a wide range of applications, including portable electronic devices and consumer appliances, automotive, industrial and medical systems. The module features voltage-mode control topology and current-mode control loop, which makes it a perfect match for mobile equipment powered by batteries.

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