LM25180NGUT Texas Instruments Integrated Circuit (Small Outline No-lead) In Stock
LM25180NGUT is a Texas Instruments primary-side regulated (PSR) flyback converter IC supporting 4.5 V to 42 V input, integrating a 65 V / 1.5 A power MOSFET with current-mode resonant control in an 8-pin WSON package rated from -40°C to 150°C for industrial and communications power supplies.
- Manufacturer
- Texas Instruments
- Package
- Small Outline No-lead
- Pin Count
- 9
- Lifecycle
- OBSOLETE
- Datasheet
- LM25180NGUT 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 LM25180NGUT?
- Integrated 65 V, 1.5 A power MOSFET eliminates external switch for compact isolated flyback designs
- Wide 4.5 V to 42 V input voltage range supporting 12 V, 24 V, and 36 V industrial bus standards
- Primary-side regulation (PSR) with resonant current-mode control for high efficiency without an opto-coupler
- Extended operating temperature range of -40°C to 150°C for automotive and industrial harsh environments
- 8-pin WSON (S-PDSO-N8) ultra-compact package enabling small isolated power supply footprints
What is LM25180NGUT used for?
LM25180NGUT is primarily used in isolated point-of-load power supplies for industrial automation, building control, and 4–20 mA loop-powered sensors where a compact flyback topology with 4.5 V to 42 V input is required. The integrated MOSFET and primary-side regulation eliminate the opto-coupler feedback path, reducing component count and simplifying PCB layout for space-constrained designs. It also suits USB PD wall adapters, auxiliary power rails in motor drives, and telecom equipment operating from 24 V or 48 V bus standards.
What are the specifications of LM25180NGUT?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | RESONANT CONTROL |
| Input Voltage-Max | 42V |
| 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 | BUCK BOOST |
| 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 LM25180NGUT datasheet?
LM25180NGUT Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM25180NGUT?
Compatible alternatives and drop-in replacements for LM25180NGUT:
Switching Regulator, Current-mode, 1.65A, 350kHz Switching Freq-Max, PDSO8
Switching Regulator, Current-mode, 1.5A, 350kHz Switching Freq-Max, BICMOS, PDSO8
Frequently Asked Questions
What input voltage range does LM25180NGUT support, and can it operate from a 24 V industrial bus?
LM25180NGUT accepts an input voltage range of 4.5 V to 42 V with a nominal design point of 24 V, making it directly compatible with standard industrial 24 V DC bus systems as well as 12 V automotive and 36 V battery applications.
Does LM25180NGUT require an external power MOSFET and opto-coupler for the flyback feedback loop?
No. LM25180NGUT integrates a 65 V, 1.5 A power MOSFET internally and uses primary-side regulation (PSR) with resonant current-mode control, eliminating the need for both an external switch transistor and an opto-coupler, which significantly reduces BOM count and board area.
For a sensor interface design operating in a high-temperature industrial environment, how does LM25180NGUT handle thermal stress?
LM25180NGUT is rated for junction temperatures from -40°C to 150°C, and the 8-pin WSON package provides an exposed thermal pad for efficient heat transfer to the PCB, sustaining reliable operation in high-ambient industrial enclosures without additional heatsinking at moderate load currents.
How compact is the LM25180NGUT solution footprint compared to a discrete flyback controller with external MOSFET?
With the MOSFET integrated in the 8-pin WSON package and PSR control removing the opto-coupler, LM25180NGUT reduces a typical isolated flyback power supply to fewer than 10 external passive components, shrinking the total solution footprint to well under 1 cm² for 1 W to 5 W output power applications.
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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.
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