LTC3731IUH#PBF

$13.15

Description：IC REG CTRLR BUCK 32QFN
Series：PolyPhase®
Mfr：Analog Devices Inc.
Package：Tube

SKU:34a569fd73bb Category: DC DC Switching Controllers Brand: Analog Devices Inc.

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Product introduction

LTC3731IUH#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 32QFN. Review the specifications below when checking this part for your BOM.

DC DC Switching Controllers specifications for LTC3731IUH#PBF

Description：IC REG CTRLR BUCK 32QFN
Series：PolyPhase®
Mfr：Analog Devices Inc.
Package：Tube
Output Type：Transistor Driver
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Number of Outputs：3
Output Phases：3
Voltage - Supply (Vcc/Vdd)：3.8V ~ 7V
Frequency - Switching：225kHz ~ 680kHz
Duty Cycle (Max)：98.50%
Synchronous Rectifier：Yes
Clock Sync：No
Serial Interfaces：-
Control Features：Enable, Phase Control, Power Good, Soft Start
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：32-WFQFN Exposed Pad
Supplier Device Package：32-QFN (5x5)
Grade：-
Qualification：-

DC DC Switching Controllers datasheet and documents for LTC3731IUH#PBF

LTC3731IUH#PBF

DC DC Switching Controllers Overview

The LTC3731IUH#PBF is a PolyPhase three-phase synchronous buck switching regulator controller designed for high-current applications. It operates at a fixed frequency of 600kHz and supports input voltages from 4V to 36V. The device generates precise gate drive signals for external N-channel MOSFETs, enabling efficient power conversion with low output ripple. It features an industrial temperature range of -40°C to 85°C and is housed in a compact 32-lead QFN package.

DC DC Switching Controllers Feature Summary

Integrates a three-phase control architecture to distribute load current across multiple phases, reducing input and output capacitor requirements.
Provides synchronized gate drive outputs for external N-channel MOSFETs to ensure optimal switching performance and efficiency.
Supports phase locking to external clock sources or master controllers for multi-unit synchronization in distributed power systems.

DC DC Switching Controllers Applications

High-density server and workstation power supplies
Distributed point-of-load (POL) conversion architectures
Industrial equipment requiring robust DC-DC regulation

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free packaging compliant with RoHS standards. Confirm the IUH designation corresponds to the industrial temperature grade (-40°C to 85°C) and the 32-lead QFN EP package. Ensure compatibility with external components selected for the target voltage and current specifications.

DC DC Switching Controllers Selection Notes

Select this component when designing multi-phase converters requiring high efficiency and low thermal footprint. It is suitable for applications needing precise current sharing and fast transient response. Consider the external MOSFET selection carefully to match the controller's drive capabilities and switching frequency.

DC DC Switching Controllers Part Context

This part belongs to the LTC3731 family of PolyPhase controllers, which are engineered for high-performance synchronous buck applications. The family offers various package options and temperature grades to suit different design constraints while maintaining consistent control logic and performance characteristics.