LM5180NGUT Texas Instruments Integrated Circuit (Small Outline No-lead) In Stock
LM5180NGUT is a primary-side regulated flyback converter controller from Texas Instruments with an integrated 100V, 1.5A power MOSFET and input voltage range of 4.5V to 65V. It operates in current-mode control and is housed in a compact 8-pin WSON package rated to 150°C.
- Manufacturer
- Texas Instruments
- Package
- Small Outline No-lead
- Pin Count
- 9
- Lifecycle
- OBSOLETE
- Datasheet
- LM5180NGUT Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM5180NGUT?
- Integrated 100V, 1.5A power MOSFET eliminating external switch components and simplifying flyback converter design
- Wide input voltage range of 4.5V to 65V supporting industrial, automotive, and universal AC-DC adapter applications
- Primary-side regulation (PSR) enabling isolated output control without opto-coupler feedback circuitry
- Current-mode control with peak-current limiting for fast transient response and inherent cycle-by-cycle protection
- Compact 8-pin WSON package rated to 150°C enabling high-temperature industrial and automotive designs
What is LM5180NGUT used for?
The LM5180NGUT is designed for isolated flyback power supplies in industrial equipment, smart home devices, and meter power modules requiring a compact, cost-effective isolated DC-DC conversion solution. Its wide 4.5V to 65V input range makes it suitable for 24V industrial bus and 48V telecom systems, while the primary-side regulation eliminates the need for an opto-coupler. The integrated 100V MOSFET and 8-pin WSON footprint enable single-chip isolated supply designs with minimal external passive components.
What are the specifications of LM5180NGUT?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Input Voltage-Max | 65V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 24V |
| JESD-30 Code | S-PDSO-N8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 1.65A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | SINGLE |
| Switching Frequency-Max | 350kHz |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | MATTE TIN |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.8mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the LM5180NGUT datasheet?
LM5180NGUT Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM5180NGUT?
Compatible alternatives and drop-in replacements for LM5180NGUT:
Switching Regulator, Current-mode, 1.5A, 350kHz Switching Freq-Max, BICMOS, PDSO8
Frequently Asked Questions
What is the integrated MOSFET rating in LM5180NGUT and how does it benefit flyback converter design?
The LM5180NGUT integrates a 100V, 1.5A power MOSFET directly on-chip, eliminating the need for a separate external switching transistor in the flyback topology. This integration reduces component count by at least 1 device, decreases PCB area, and minimizes gate drive routing inductance, which improves switching efficiency and reduces EMI at operating frequencies up to several hundred kilohertz in typical designs.
Which industrial and automotive bus voltages is the LM5180NGUT compatible with given its input range?
The LM5180NGUT accepts input voltages from 4.5V to 65V, covering common industrial and automotive bus rails including 12V, 24V, and 48V systems. It also supports universal AC-DC pre-regulator outputs in the 40V to 60V range, making it versatile for factory automation, building control, and electric vehicle auxiliary power modules operating across a wide supply voltage window.
How does primary-side regulation in LM5180NGUT eliminate the need for an optocoupler and what are the design trade-offs?
LM5180NGUT uses primary-side regulation (PSR) by monitoring the flyback winding voltage during the off-time to estimate the secondary output voltage, removing the need for an optocoupler and TL431 shunt reference in the feedback path. This reduces component count by 2 to 3 parts and improves reliability, but PSR output accuracy is typically within 5%, making it best suited for loads that tolerate moderate voltage variation rather than precision regulation below 1%.
What maximum junction temperature does LM5180NGUT support and how does this extend its use in harsh environments?
The LM5180NGUT is rated for operation from -40°C to 150°C junction temperature, enabling reliable deployment in harsh environments such as automotive engine compartments, industrial motor drives, and outdoor smart meters. The 150°C maximum junction rating provides substantial thermal headroom at elevated ambient temperatures, reducing the heatsinking and derating requirements compared to standard-grade converters limited to 125°C.
Related Guides
STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply
Choose the right STM32H725 variant by comparing Flash, package, pin count, temperature grade, connectivity, and production requirements.
Aug 1, 2026
STM32H725IGT3 High-Performance MCU Design Guide
Design STM32H725IGT3 systems for reliable 550 MHz operation with practical power, clock, cache, DMA, PCB, ADC, and recovery guidance.
Jul 31, 2026
150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing
Select the 150141VS73100 by wavelength, brightness, drive current, 3528 fit, reliability, and traceable sourcing requirements.
Jul 31, 2026
STEF05SGR 5 V eFuse Protection Design Guide
Design a reliable 5 V STEF05SGR eFuse stage with current-limit math, capacitor sizing, thermal analysis, fault recovery, and PCB layout guidance.
Jul 30, 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