LT3477IFE#TRPBF

$5.02

Description：IC LED DRVR RGLTR PWM 3A 20TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)

SKU:352e361ef982 Category: LED Drivers IC Brand: Analog Devices Inc.

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Product introduction

LT3477IFE#TRPBF is listed in the LED Driver IC range at ChipApex. The manufacturer field lists Analog Devices Inc.. Its product description is IC LED DRVR RGLTR PWM 3A 20TSSOP. Review the specifications below when checking this part for your BOM.

LED Driver IC specifications for LT3477IFE#TRPBF

Description：IC LED DRVR RGLTR PWM 3A 20TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)
Type：DC DC Regulator
Topology：Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost)
Internal Switch(s)：Yes
Number of Outputs：1
Voltage - Supply (Min)：2.5V
Voltage - Supply (Max)：25V
Voltage - Output：-
Current - Output / Channel：3A (Switch)
Frequency：200kHz ~ 3.5MHz
Dimming：PWM
Applications：-
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Package / Case：20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package：20-TSSOP-EP
Grade：-
Qualification：-

LED Driver IC datasheet and documents for LT3477IFE#TRPBF

LT3477IFE#TRPBF

LED Driver IC Overview

The LT3477IFE#TRPBF is a current mode DC/DC step-up converter manufactured by Analog Devices Inc. It features an internal 3A, 42V switch and dual rail-to-rail current sense amplifiers. The device combines traditional voltage feedback with two unique current feedback loops to operate as a constant-current, constant-voltage source. Input voltage ranges from 2.5 V to 25 V, with a maximum output voltage of 42 V and output current capability up to 2.66 A. Switching frequency is adjustable between 200 kHz and 3.5 MHz. Operating temperature spans -40°C to +85°C.

LED Driver IC Feature Summary

Integrates a 3A, 42V internal power switch for high-current step-up conversion
Utilizes dual rail-to-rail current sense amplifiers for precise regulation
Supports combined constant-current and constant-voltage operation modes

LED Driver IC Applications

LED driver circuits requiring open LED protection
General purpose DC/DC boost converter designs
Battery-powered applications requiring voltage step-up

LED Driver IC Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm that the part number matches the exact manufacturer designation from Analog Devices Inc. documentation. Ensure compatibility with required operating temperature ranges and electrical specifications before integration into final designs.

LED Driver IC Selection Notes

Select this component for applications requiring high input voltage tolerance and integrated power switching. Consider the adjustable switching frequency range for optimizing external component sizes. Verify that the QFN-20 package fits the target PCB layout constraints. Evaluate thermal performance requirements given the internal 3A switch capabilities.

LED Driver IC Part Context

This part belongs to the LT3477 series of switching regulators from Analog Devices. It is categorized under PMIC (Power Management ICs) and specifically within the Switching Voltage Regulators subcategory. The device is designed for robust performance in demanding power conversion environments.