LTC3851AEMSE-1#TRPBF

DC DC Switching Controllers Overview

The LTC3851AEMSE-1#TRPBF is a synchronous step-down switching regulator controller from Analog Devices, housed in a 16-pin MSOP package. It operates with an input voltage range of 4V to 38V and supports output voltages from 800mV to 5.5V. The device delivers up to 25A of output current with a fixed switching frequency of 750kHz. It features a low static current of 20µA and a shutdown function. The component functions within a temperature range of -40°C to +125°C and includes load regulation of 0.01%.

DC DC Switching Controllers Feature Summary

• Drives all N-channel synchronous power MOSFET stages for high efficiency
• Constant frequency current mode architecture allows phase-lockable operation
• Includes pulse skip operation capability for improved light-load performance

DC DC Switching Controllers Applications

• High efficiency 3.3V/15A step-down converter designs
• 1.8V/5A converters utilizing pulse skip operation
• 1.5V/15A regulators synchronized at 350kHz

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the MSOP-16 EP package type matches your PCB footprint requirements. Ensure the 750kHz fixed frequency aligns with your system timing constraints. Check RoHS compliance status through official manufacturer channels before finalizing procurement decisions.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring high current delivery up to 25A with precise voltage regulation. The fixed 750kHz frequency simplifies external component selection compared to adjustable variants. Consider the MSOP-16 package size for space-constrained designs. Verify that the 4V to 38V input range covers your supply rail variations.

DC DC Switching Controllers Part Context

This component belongs to the LTC3851A series of synchronous buck controllers. It is designed to replace older generation controllers by offering higher efficiency through N-channel MOSFET drive. The part integrates essential control loops while requiring external power stages. It serves as a core power management IC for various DC-DC conversion topologies.

DC DC Switching Controllers Replacement Considerations

LTC3851AEMSE#PBF is a compatible variant in tube packaging. LTC3851AIGN#TRPBF offers the same electrical specifications in SSOP-16 packaging.