EN
  • EN
  • DE
loading
Mfr. Part No. Qty. Price

No items in the cart

View Cart
Same model may have multiple batches, images only for reference.
IS31FL3743B-QULS4-TR Lumissil Microsystems
Same model may have multiple batches, images only for reference.

IS31FL3743B-QULS4-TR

Part No IS31FL3743B-QULS4-TR
Manufacturer Lumissil Microsystems
Catalog PMIC - LED Drivers
Description IC LED DRV LIN PWM 34.5MA 40UQFN / LED Driver IC 11 Output Linear PWM Dimming 34.5mA 40-UQFN (5x5)
Datasheet
IS31FL3743B-QULS4-TR Datasheet
Sample
Rohs State rohs
ECAD Module
Need Help

Products specifications Report Issue?

Category Integrated Circuits (ICs) - Power Management (PMIC) - LED Drivers
Mfr Lumissil Microsystems
Series -
Package Tape & Reel
Product Status Active
Type Linear
Topology -
Internal Switch(s) No
Number of Outputs 11
Voltage - Supply (Min) 2.7V
Voltage - Supply (Max) 5.5V
Voltage - Output -
Current - Output / Channel 34.5mA
Frequency 12MHz
Dimming PWM
Applications General Purpose
Temperature Range - Operating -40°C ~ 125°C (TA)
Mounting Type Surface Mount
Package / Case 40-UFQFN Exposed Pad
Supplier Device Package 40-UQFN (5x5)
Base Product Number IS31FL3743
MSL Level 3 (168 Hours)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001
Win Source Part Number 1354207-IS31FL3743B-QULS4-TR
Ultra Librarian 3D Model Ultra Librarian IS31FL3743B-QULS4-TR CAD Model

Description

The IS31FL3743B-QULS4-TR is a power management integrated circuit (IC) specifically designed for LED drivers. Manufactured by Lumissil Microsystems, this IC is part of the IS31FL3743 series.

  • Function: LED Driver
  • Series: IS31FL3743
  • Product Status: Active
  • Package / Case: 40-UFQFN Exposed Pad
  • Operating Temperature: -40°C to 125°C
  • Frequency: 12MHz
  • Application: General Purpose
  • Voltage - Supply: 2.7V to 5.5V
  • Number of Outputs: 11
  • Current - Output / Channel: 34.5mA
  • Features: PWM Dimming
  • Mounting Type: Surface Mount

You May Also Be Interested in

A8512ELBTR-T Real Image
A8512ELBTR-T
Allegro MicroSystems, LLC
LED Backlight Driver for Medium/Large Displays | IC LED DRIVER CTRLR DIM 24SOIC
Need more? Email Us
AL8860QMP-13 Real Image
AL8860QMP-13
Diodes Incorporated
IC LED DRVR RGLTR PWM 1.5A 8MSOP / LED Driver IC 1 Output DC DC Regulator Step-Down (Buck) Analog, PWM Dimming 1.5A 8-MSOP-EP
Lowest to $0.4467
AL1676-20CS7-13 Real Image
AL1676-20CS7-13
Diodes Incorporated
IC LED DRIVER OFFL 2A 7SO / LED Driver IC 1 Output AC DC Offline Switcher Step-Down (Buck) Dimming 2A 7-SO
Lowest to $0.2622
ALED6001TR Real Image
ALED6001TR
STMicroelectronics
IC LED DRIVER CTRLR PWM 16HTSSOP / LED Driver IC 1 Output DC DC Controller SEPIC, Step-Down (Buck), Step-Up (Boost) Analog, PWM Dimming 16-HTSSOP
Lowest to $2.9615
TLC5971RGER Real Image
TLC5971RGER
Texas Instruments
IC LED DRIVER LINEAR 60MA 24VQFN
Lowest to $2.9233
AL8843QSP-13 Real Image
AL8843QSP-13
Diodes Incorporated
IC LED DRIVER RGLTR PWM 3A 8SO / LED Driver IC 1 Output DC DC Regulator Step-Down (Buck) Analog, PWM Dimming 3A 8-SO-EP
Lowest to $1.1730
A6279ELP-T Real Image
A6279ELP-T
Allegro MicroSystems, LLC
IC LED DRVR LIN 75.5MA 24TSSOP / LED Driver IC 16 Output Linear Shift Register Dimming 75.5mA 24-TSSOP-EP
Need more? Email Us
ALT80800KLPATR Real Image
ALT80800KLPATR
Allegro MicroSystems, LLC
LED Driver 5000uA Supply Current Automotive 16-Pin TSSOP EP T/R
Lowest to $3.3227
AL1696-20CS7-13 Real Image
AL1696-20CS7-13
Diodes Incorporated
IC OFFLINE LED DRIVER SO-7
Lowest to $0.3128

Top Sellers

FT230XS-R real image4301
FT230XS-R
FTDI, Future Technology Devices International Ltd
IC USB SERIAL BASIC UART 16SSOP
Lowest to $5.4647
ICM-42688-P Real Image2
ICM-42688-P
TDK InvenSense
MOTION SENSOR / Accelerometer, Gyroscope, 6 Axis Sensor Output
Lowest to $17.5820
BMI160 real image
BMI160
Bosch Sensortec
IMU ACCEL/GYRO I2C/SPI 14LGA / Accelerometer, Gyroscope, 6 Axis Sensor I2C, SPI Output
Lowest to $3.8016
AR8033-AL1A real image2016
AR8033-AL1A
Atheros
Ethernet TXRX Single Chip 1-Port 3.3V 10Mbps/100Mbps/1000Mbps 48-Pin QFN EP Tray
Lowest to $2.6071
DRV8432DKD Real Image1
DRV8432DKD
Texas Instruments
IC BRIDGE DRIVER PAR 36HSSOP
Lowest to $19.3374
BMM150 label picture
BMM150
Bosch Sensortec
SENSOR FLIPCORE/HALL SPI 12WLCSP / Geomagnetic Sensor
Lowest to $0.7841
FT4232HL real image4446
FT4232HL
FTDI, Future Technology Devices International Ltd
IC USB HS QUAD UART/SYNC 64-LQFP
Lowest to $14.0181
TPSM63606RDLR Real Image
TPSM63606RDLR
Texas Instruments
DC DC CONVERTER 1-16V / Non-Isolated PoL Module DC DC Converter 1 Output 1 ~ 16V 6A 3V - 36V Input
Lowest to $13.0101
FT232RL-REEL Real Image
FT232RL-REEL
FTDI, Future Technology Devices International Ltd
IC USB FS SERIAL UART 28-SSOP
Lowest to $4.9895
ULN2803ADW Real Image
ULN2803ADW
Texas Instruments
DARLINGTON TRANSISTOR ARRAY | TRANS 8NPN DARL 50V 0.5A 18SO
Lowest to $5.4647
BM06B-GHS-TBT(LF)(SN)(N) Real Image2
BM06B-GHS-TBT(LF)(SN)(N)
JST Sales America Inc.
CONN HEADER SMD 6POS 1.25MM
Lowest to $0.4985
FT4232HL-REEL real image4451
FT4232HL-REEL
FTDI, Future Technology Devices International Ltd
IC USB HS QUAD UART/SYNC 64-LQFP
Lowest to $14.0181
BM04B-GHS-TBT(LF)(SN)(N) label picture
BM04B-GHS-TBT(LF)(SN)(N)
JST Sales America Inc.
CONN HEADER GH TOP 4POS 1.25MM
Lowest to $0.2376
PI3740-00-LGIZ real image
PI3740-00-LGIZ
Vicor Corporation
DC DC CONVERTER 10-50V / 8V – 60VIN , 10V – 50VOUT , 50 – 140W Cool-Power ZVS Buck-Boost Regulator
Lowest to $32.0752
PE4312C-Z label picture
PE4312C-Z
Peregrine Semiconductor
RF ATTENUATOR 31.5DB 50OHM 20QFN
Lowest to $2.2891

Pricing & Ordering

Quantity Unit Price Ext. Price
60+ $0.8857 $53.1420
125+ $0.8286 $103.5750
190+ $0.8000 $152.0000
270+ $0.7429 $200.5830
350+ $0.7143 $250.0050
440+ $0.6858 $301.7520
* Prices exclude shipping and taxes. Shipping costs are calculated at checkout.
Estimate Shipping
Enter your destination to get a shipping estimate
*
Availability: 51,770 pieces
MOQ: 60 pcs
Order Increment : 1 pcs
*Need More Quantity? *Request a Bulk Quantity Quotation?
Ordering Guidelines

Shipping Information

Shipped from HK warehouse
Expected Shipping Date
Ship today if order in (HKT)
Supplier Lead-Time Call for availability
Estimate shipping fee
Enter your destination to get a shipping estimate
Estimate Shipping Fee

Contact Us

*
*
*

FRAUD PREVENTION REMINDERS

Recently, We have discovered that criminals falsely claimed to be WIN SOURCE to commit fraud. Please note that the only official website & email suffix are win-source.group, win-source.net, winsourcectl.com and winsourceelec.com

More details about fraud prevention
About Us
Customer Service
Solutions
Copyright © 2026 WIN SOURCE. All rights reserved.
For detailed contact information and office addresses in our key locations, including Irvine, Munich, Toronto, Singapore, Seoul, Bangalore, Bologna, Yamanashi, Hong Kong, and Mainland China, please visit our website.
Trust Guard Security Scanned
RFQ RFQ RFQ BOM BOM BOM API API API Sell Sell Sell your Excess