LT3791IFE-1

Description：IC REGULATOR
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:5b51dfa07c43 Category: DC DC Switching Controllers Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REGULATOR
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Output Type：Transistor Driver
Function：Step-Up/Step-Down
Output Configuration：Positive
Topology：Buck-Boost
Number of Outputs：2
Output Phases：2
Voltage - Supply (Vcc/Vdd)：4.7V ~ 60V
Frequency - Switching：200kHz ~ 700kHz
Duty Cycle (Max)：-
Synchronous Rectifier：Yes
Clock Sync：Yes
Serial Interfaces：-
Control Features：Enable, Frequency Control, Soft Start
Operating Temperature：-40°C ~ 125°C
Mounting Type：Surface Mount
Package / Case：38-TFSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package：38-TSSOP-EP
Grade：-
Qualification：-

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LT3791IFE-1

Overview

The LT3791IFE-1 is a synchronous four-switch buck-boost voltage and current regulator controller manufactured by Analog Devices Inc. It operates within an input voltage range of 4.7V to 60V, supporting a maximum output current of 10A. The device features a programmable switching frequency between 200kHz and 700kHz and functions reliably across a junction temperature range of -40°C to 125°C. Packaged in a 38-TSSOP-EP format, it integrates precise regulation capabilities for both voltage and current modes.

Feature Summary

Synchronous four-switch topology enabling efficient step-up and step-down conversion
Dual regulation capability for both output voltage and output current control
Supports analog and PWM dimming methods for lighting applications

Applications

High-power LED driver systems requiring constant current regulation
Battery-powered equipment with wide input voltage variations
Industrial lighting fixtures utilizing True Color PWM technology

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to ensure correct package type and thermal pad configuration. Confirm that the ordered component matches the required switching frequency range and operating temperature specifications for the target application environment. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before purchase.

Selection Notes

Select this controller when designing systems requiring simultaneous voltage and current regulation within a wide input window. Ensure external components support the 10A output capability and the selected switching frequency falls within the 200kHz to 700kHz range. Evaluate thermal management requirements given the 38-TSSOP-EP package and high power density associated with synchronous buck-boost topologies.

Part Context

This component belongs to the LT3791 family of power management integrated circuits designed for robust DC-DC conversion. It serves as a specialized controller for applications demanding high efficiency and precise regulation under varying load and line conditions. The device complements other Analog Devices solutions for complex power architectures requiring flexible topology options.