LTC3851AEUD#PBF

$5.62

Description：IC REG CTRLR BUCK 16QFN
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:6393c40db4fb Category: DC DC Switching Controllers Brand: Analog Devices Inc.

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Product introduction

LTC3851AEUD#PBF is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists Analog Devices Inc.. Its product description is IC REG CTRLR BUCK 16QFN. Review the specifications below when checking this part for your BOM.

DC DC Switching Controllers specifications for LTC3851AEUD#PBF

Description：IC REG CTRLR BUCK 16QFN
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Output Type：Transistor Driver
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：4V ~ 38V
Frequency - Switching：235kHz ~ 750kHz
Duty Cycle (Max)：99%
Synchronous Rectifier：Yes
Clock Sync：No
Serial Interfaces：-
Control Features：Current Limit, Enable, Frequency Control, Soft Start, Tracking
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：16-WFQFN Exposed Pad
Supplier Device Package：16-QFN (3x3)

DC DC Switching Controllers datasheet and documents for LTC3851AEUD#PBF

LTC3851AEUD#PBF

DC DC Switching Controllers Overview

The LTC3851AEUD#PBF is a high-performance synchronous step-down switching regulator controller from Analog Devices Inc., designed to drive an all N-channel synchronous power MOSFET stage. It features a constant frequency current mode architecture that supports a phase-lockable switching frequency of up to 750kHz. The device operates with an input voltage range of 4.5V to 38V and provides a positive output configuration. Packaged in a 16-WFQFN (3x3) surface-mount package, it includes control features such as enable, frequency control, power good signaling, soft start, and tracking capabilities.

DC DC Switching Controllers Feature Summary

Drives all N-channel synchronous power MOSFETs for high efficiency
Supports phase-lockable frequencies up to 750kHz via constant frequency current mode
Includes internal bias linear regulator and mode selection for forced CCM, pulse skip, or burst operation

DC DC Switching Controllers Applications

High efficiency synchronous step-down DC/DC converters
Systems requiring wide input voltage ranges (4.5V to 38V)
Applications utilizing pulse skip or burst mode for light load efficiency

DC DC Switching Controllers Procurement Notes

Verify the specific suffix (#PBF) indicates tube packaging when reviewing distributor catalogs. Confirm the operating temperature grade matches the application requirements, as automotive variants may exist within the broader family. Ensure the selected part number aligns with the required pinout and thermal pad specifications for the 16-QFN package.

DC DC Switching Controllers Selection Notes

Select this controller for designs requiring full N-channel MOSFET synchronization and flexible frequency settings up to 750kHz. Consider the 4.5V to 38V input range for versatile power supply architectures. Evaluate the need for specific modes like pulse skip or burst operation based on light-load efficiency targets.

DC DC Switching Controllers Part Context

This component belongs to the LTC3851 family of synchronous buck controllers. It is distinct from integrated converter modules by providing only the control logic, requiring external power stages. The #PBF suffix denotes tube packaging, differentiating it from tape-and-reel options available in the same product line.