LT3741IUF-1#TRPBF

$5.88

Description：IC REG CTRLR BUCK 20QFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)

SKU:de970c434623 Category: DC DC Switching Controllers Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG CTRLR BUCK 20QFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)
Output Type：Transistor Driver
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：6V ~ 36V
Frequency - Switching：200kHz ~ 1MHz
Duty Cycle (Max)：-
Synchronous Rectifier：Yes
Clock Sync：Yes
Serial Interfaces：-
Control Features：Enable, Frequency Control, Soft Start
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：20-WFQFN Exposed Pad
Supplier Device Package：20-QFN (4x4)
Grade：-
Qualification：-

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LT3741IUF-1#TRPBF

Overview

The LT3741IUF-1#TRPBF is a high-power, constant current/constant voltage buck controller from Analog Devices. It operates with an input voltage range of 6V to 36V and supports output voltages from 4V to 34V. The device delivers up to 25A output current with a fixed switching frequency of 1MHz. It features a low static current of 1.8mA and functions within a temperature range of -40°C to +125°C. Packaged in a 20-QFN (4x4) surface-mount format on a reel, it includes synchronous rectification and clock synchronization capabilities.

Feature Summary

Provides precise regulation for high-power applications supporting both constant current and constant voltage modes
Integrates synchronous rectification drivers to enhance efficiency in step-down topologies
Supports external clock synchronization for noise immunity and multi-phase system expansion

Applications

High-power LED lighting drivers requiring constant current regulation
Battery charging systems utilizing constant current/constant voltage profiles
Industrial power supplies needing robust buck conversion

Procurement Notes

Verify the specific suffix #TRPBF confirms the tape-and-reel packaging configuration required for automated assembly processes. Ensure the I-grade temperature rating aligns with industrial operational environments. Cross-reference the manufacturer part number against official Analog Devices documentation to confirm authenticity and revision status before procurement.

Selection Notes

Select this component when designing systems requiring simultaneous constant current and constant voltage control capabilities. It is suitable for applications demanding high output currents up to 25A with efficient synchronous rectification. Consider the 20-QFN package constraints and thermal management requirements associated with high-power density designs operating at 1MHz switching frequencies.

Part Context

This part belongs to the LT3741 family of fixed-frequency synchronous step-down DC/DC controllers. The LT3741 series is engineered for accurate output current regulation, making it distinct from standard voltage-only regulators. The LT3741-1 variant specifically addresses applications needing combined constant current and constant voltage functionality.