IS31FL3733A-QFLS4-TR

IC LED DRVR LIN I2C 42MA 48QFN
Mfr. Part Number
IS31FL3733A-QFLS4-TR
Manufacturer
Lumissil Microsystems
Package / Case
48-WFQFN Exposed Pad
Datasheet
Description
IC LED DRVR LIN I2C 42MA 48QFN
RoHS Status
Lead Free / RoHS Complaint
Availability
Sourcing — Lead time quoted on request (often 3–15 business days by channel)
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IS31FL3733A-QFLS4-TR
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In Stock8,065
Unit
Price
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Reference Price
QuantityPrice
Prices are for reference only. The final transaction is subject to confirmation.
As of 2026-09-20 · Valid as reference until 2026-09-27 · Request RFQ for live stock.
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Specification Summary

Package / Case
48-WFQFN Exposed Pad
Supplier Device Package
48-QFN (6x6)
Voltage - Supply (Max)
5.5V
Voltage - Supply (Min)
2.7V
Current - Output / Channel
42mA
Frequency
400kHz ~ 1MHz
Operating Temperature
-40°C ~ 125°C (TA)
Mounting Type
Surface Mount
Full specifications are listed below. Need alternates or BOM matching? Read BOM guide · Request a quote
Stock status: Sourcing — Lead time quoted on request (often 3–15 business days by channel)
Shortage / allocation / EOL lines may need longer — ask via RFQ.
Reference price and stock shown as of 2026-09-20. Confirm live availability and unit price via RFQ before placing a PO.
Specifications
Product Description
Purchase & Inquiry
Voltage - Supply (Min)
2.7V
Current - Output / Channel
42mA
Dimming
I²C
Frequency
400kHz ~ 1MHz
Internal Switch(s)
Yes
Number of Outputs
28
Topology
Constant Current
Voltage - Output
-
Voltage - Supply (Max)
5.5V
Applications
General Purpose
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 125°C (TA)
Type
Linear
Package / Case
48-WFQFN Exposed Pad
Supplier Device Package
48-QFN (6x6)
IC LED DRVR LIN I2C 42MA 48QFN
Brand Introduction

Lumissil Microsystems is a division of Integrated Silicon Solution Inc. (ISSI). Lumissil’s odyssey at ISSI began with innovative LED drivers that continue to have a great impact on many popular products. Through a series of strategic acquisitions, it amassed technologies in touch sensors, audio, microcontrollers, power management, and connectivity with the goal of becoming a best-in-class analog solution provider for automotive, IoT, and industrial markets. Lumissil delivers a diverse portfolio of high performing, innovative but pragmatic analog semiconductor products, connecting customers’ next ideas to the analog world of light, touch, sound, power, and control.

Lumissil Microsystem is a fabless manufacturer with established relationships at key semiconductor foundries. This enables its analog products to be innovative and cost-effective, while ensuring continuity of supply for the customer. As a division of ISSI, Lumissil upholds the commitments to build long-term relationships and to be a long-term supplier for its customers. Lumissil Microsystems innovates through a process of listening and understanding customer technical challenges and invents analog solutions to enhance their designs.

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