LTC3855EFE

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The LTC3855EFE is a controller which belongs to the PMIC Voltage Regulators DC DC Switching Controllers family. It can be used to generate multiple output voltages for sake of system module design flexibility. It also drives N-channel MOSFET power stages and covers essential functions such as power supply fault monitoring and protection, temperature monitoring and shut-down, and remote sensing.

Based on the user desired needs, it can support multiple output voltage outputs. These outputs can either be regulated by using the integrated Feedback and Error Amplifier, or regulated with an external voltage reference. It also has internal high-bandwidth feedback loops to control the output voltage regulation, minimizing external components and optimizing cost, size, and design time. This device supports multiple current-mode synchronous buck converter output stages via external N-Channel MOSFETs.

Working principle of this device starts with the input voltage being applied to the VIN pin. The device then regulates the output voltage(s) to the desired level set by the voltage reference in voltage mode, or the error amplifier in current mode. If a fault is detected or an overtemperature condition exceeded, the LTC3855EFE will shut the entire power stage down to protect the system. The Shut-Down input pin provides additional external control over power delivery from the power stage.

The device also provides extensive protection and monitoring features to prevent its associated linear and switching power supplies from over-temperature harms and/or possible damages. Its temperature monitoring feature ensures the device remains within a safe operating zone. Besides its thermal protection, it also provides power-supply fault protection ensuring a safe output voltage when a fault condition is detected. Other features include Brown-In/ Brown-Out detection, synchronization with an external clock, remote sensing, and adjustable Soft-Start.

The LTC3855EFE is a very versatile device which fits many applications. It is suitable for acts reliable current mode synchronous buck converter output stages. Examples of typical applications include field-programmable gate arrays (FPGA), digital signal processors (DSP), ASICs, microprocessors, and other general-purpose requirements for a wide variety operating voltage supports. It\'s maximum power stage output current can reach up to 50A. It is also appropriate for use in industrial and domestic applications such as servers, workstations, Netcom systems, audio power amplifiers, cellular phones, laser printers, personal media centers, and LCD monitors.

Its low component count and high integration level make it one of the best efficient and functional DC DC switching controllers. It has a 16-pin, 5mm × 7mm QFN package, making it suitable for even lager power supply designs. Leveraging the cost-effectiveness of switching power supplies, it our-performs traditional linear power supplies and reduces power consumption, component cost and design time.

In summary, the LTC3855EFE belong to the PMIC Voltage Regulators DC DC Switching Controllers family and is a controller providing multiple output voltage options and extensive protection and monitoring features. Its wide application field shows its versatility, such as FPGA, ASICs, audio amplifiers and LCD monitors. Its 16-pin, 5mm × 7mm QFN package makes it ideal for use in many power supply designs. Its low component count and high integration level make it one of the best efficient and functional DC DC switching controllers.

The specific data is subject to PDF, and the above content is for reference