LM3405AXMY Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
LM3405AXMY is a constant current buck LED driver from Texas Instruments. It delivers up to 1A output current with integrated 0.5Ω MOSFET switch and operates from 3V to 20V input. Ideal for LED lighting, backlighting, and portable displays. Available in SOT-23-5 package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- LM3405AXMY Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM3405AXMY?
- Constant current output up to 1A for stable LED brightness control
- Wide input voltage range: 3V to 20V for flexible power supply compatibility
- Integrated 0.5Ω N-channel MOSFET switch reduces external component count
- High switching frequency up to 1.6MHz enables compact, low-profile designs
- SOT-23-5 package ideal for space-constrained LED driver applications
What is LM3405AXMY used for?
The LM3405AXMY is well-suited for LED backlighting in LCD panels, portable consumer electronics, and handheld devices requiring compact and efficient constant-current LED drivers. It is also widely used in automotive interior lighting, industrial indicator lighting, and general solid-state lighting applications where precise current regulation and high efficiency are essential.
What are the specifications of LM3405AXMY?
| YTEOL | 0 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the LM3405AXMY datasheet?
LM3405AXMY Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3405AXMY?
Compatible alternatives and drop-in replacements for LM3405AXMY:
Frequently Asked Questions
What is the input voltage range of the LM3405AXMY?
The LM3405AXMY operates from a 3V to 20V input voltage range, making it suitable for a wide variety of battery-powered and regulated supply applications including single-cell Li-Ion, multi-cell alkaline, and 12V/15V adapter supplies.
What is the maximum output current the LM3405AXMY can deliver?
The LM3405AXMY can deliver up to 1A of continuous output current. It achieves this with an integrated 0.5Ω N-channel MOSFET switch, eliminating the need for an external switching transistor and reducing overall component count.
What are the typical applications for the LM3405AXMY?
The LM3405AXMY is designed for LED lighting applications including architectural lighting, industrial lighting, LCD backlighting for portable devices, and handheld displays. Its constant current regulation ensures consistent LED brightness regardless of input voltage variations.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit