LT3477EFE#PBF

Description：IC LED DRVR RGLTR PWM 3A 20TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:3a79e3216594 Category: LED Drivers IC Brand: Analog Devices Inc.

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Product introduction

LT3477EFE#PBF 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 LT3477EFE#PBF

Description：IC LED DRVR RGLTR PWM 3A 20TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube
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 ~ 85°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 LT3477EFE#PBF

LT3477EFE#PBF

LED Driver IC Overview

The LT3477EFE#PBF is a current-mode DC/DC step-up converter featuring an internal 3A, 42V switch and dual rail-to-rail current sense amplifiers. It operates with an input voltage range of 2.5 V to 25 V and supports switching frequencies from 200 kHz to 3.5 MHz. The device provides a maximum output voltage of 42 V and an output current capability of 2.66 A. It utilizes a QFN-20 package and functions within a temperature range of -40°C to +85°C.

LED Driver IC Feature Summary

Integrates dual rail-to-rail current sense amplifiers for precise input current limiting
Combines traditional voltage feedback with unique current feedback loops for constant-current and constant-voltage operation
Features an internal high-voltage switch capable of handling up to 42 V

LED Driver IC Applications

LED drivers requiring accurate input current limiting
Boost converters operating between 5 V and 12 V inputs
Buck-boost LED driver configurations for wide input voltage ranges

LED Driver IC Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout and electrical specifications. Ensure the selected component matches the required thermal performance for the intended application environment. Cross-reference datasheet revisions to validate compatibility with existing design parameters before finalizing procurement decisions.

LED Driver IC Selection Notes

Select this component when designing circuits that require simultaneous regulation of output voltage and strict control over input current limits. The integrated dual current sense amplifiers make it suitable for applications where source protection or battery charging profiles are critical. Evaluate the switching frequency requirements against external component sizes to optimize the overall system footprint.

LED Driver IC Part Context

This part belongs to the LT3477 series of power management ICs designed for flexible DC/DC conversion topologies. It serves as a versatile solution for applications needing robust current mode control and high voltage tolerance. The series is engineered to provide reliable performance in space-constrained designs utilizing surface mount packaging technologies.