LTC3835EUFD#PBF

LTC3835EUFD#PBF is a member of the PMIC - Voltage Regulators - DC DC Switching Controllers family. It is a high performance synchronous buck switching regulator controller offering multiple integrated features that make it simple and easy to use. The LTC3835EUFD#PBF is designed to conserver energy and increase system efficiency while offering accurate control and loop compensation over a wide input voltage range and temperature.

The power consumption of the LTC3835EUFD#PBF is relatively low, thanks to its integrated features and system protections which help minimize the external component count. It has several features to help attaining optimized and reliable system performance. These include programmable transition mode loop compensation, dynamic voltage scaling, and cycle-by-cycle current limit.

The LTC3835EUFD#PBF increases system efficiency by lowering the output voltage under light load conditions. This is achieved by automatically switching off all unneeded channels to reduce power loss. Its dual pulse generator simplifies multiple-output designs and offers high power transfer efficiency between output channels. The frequency synchronization allows synchronization of multiple regulators and possible lower EMI.

The LTC3835EUFD#PBF also has other features which make it suitable for a range of applications. These include an integrated 2 μA low dropout linear regulator (LDO) to supply small loads, fault prediction circuitry to notify the system status, adjustable soft-start ramp, cycle-by-cycle current limit and much more. Additionally, the controller is designed with a flexible package option.

The LTC3835EUFD#PBF offers several applications in a range of markets including communications, servers, industrial, medical and consumer applications. It is suitable for use in battery-powered products, automotive systems, portable and distributed systems, home appliances, telecom/datacom systems, and LCD TVs.

The LTC3835EUFD#PBF works based upon a suitable switching controller, feeding a power switch (or multiple power switches). The settings are configured and programmed via an external resistor voltage divider network (RVDN) which is connected to the controller. The controller then generates a pulse width modulated (PWM) signal to drive the power switch. The power switch then transitions between its on and off state cycles that are regulated by the controller.

The controller constantly checks the feedback voltage and ensures that the output voltage of the switching regulator is within the certain range. If the feedback voltage falls below or exceeds the predetermined range then the PWM duty cycle is adjusted to keep the output voltage within the specified limits. The output voltage of the PWM is then filtered, usually using LC filter to provide the output voltage at a low ripple component.

The LTC3835EUFD#PBF is suitable for a variety of applications and can provide efficient energy transfer from input to output. It is a cost effective, fast response, low power consumption, and flexible controller making it an ideal choice for a variety of applications.