LTC3863MPMSE#TRPBF

The LTC3863MPMSE#TRPBF is a high performance, multifunction, synchronous monolithic step-down for applications requiring up to 10A of load current. This device contains a dual-channel MOSFET driver, a high performance regulator controller, an adjustable PWM and synchronous rectifier (SR) drivers and a low noise 2.5V linear regulator. The microprocessor interface allows for communication with the load for precise control of voltage and current levels.

Application field

The LTC3863MPMSE#TRPBF is ideal for applications requiring highly efficient power supplies with tight control of output voltage. It is suitable for a variety of different applications, including networking, communications, automotive, desktop and other high power applications. The wide operating range of the LTC3863MPMSE#TRPBF also makes it suitable for applications needing fast transient response. This feature minimizes output voltage deviations in response to large load transients.

Working Principle

The LTC3863MPMSE#TRPBF operates off of a single output voltage at up to 10A current. Its dual-channel half-bridge driver contains a high-current NPN (SRC) and PNP (SRC+) driver for load switching control. The wide range of biasing voltages and operating temperatures ensures that the device is suitable for most applications requiring high efficiency and fast transient response.

The linear regulator contains a voltage regulator (VR), a pulse-width modulated (PWM) comparator, and a synchronous rectifier control logic block. The VR sets the output voltage of the device and regulates the PWM comparator to regulate the output current. The synchronous rectifiers control the half-bridge transistors for load switching. This system ensures that the output current remains constant irrespective of power load changes.

The LTC3863MPMSE#TRPBF contains a load share controller that allows for equal power sharing between the devices in a multi-device configuration. This feature ensures controlled current sharing and efficient operation. The microprocessor interface allows for easy voltage and current control and monitoring of vital device parameters.

The LTC3863MPMSE#TRPBF is a highly efficient and versatile switching controller suitable for a variety of applications. It is capable of providing high current at low output voltages and fast transient response. Its dual-channel drivers and microprocessor interface provide precise voltage and current control, while its load share controller allows for equal power sharing between multiple devices.