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LM2576T-12/NOPB

3A step-down switching regulator, fixed 12V, Pb-free (NiPdAu), TO-220-5

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Manufacturer Part：

LM2576T-12/NOPB

Package：

TO-220-5 (5-lead, Pb-free NiPdAu finish)

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Description

Product Overview

The LM2576T-12/NOPB from Texas Instruments is the Pb-free version of the LM2576T-12, a 3A step-down switching regulator with fixed 12V output. Electrically identical to the standard version but uses NiPdAu lead finish for RoHS compliance. The /NOPB suffix indicates Pb-free termination.

Key Specifications

Output Voltage 12V (Fixed, 2% tolerance)
Output Current 3A
Input Voltage Range 15V to 40V
Switching Frequency 150 kHz
Efficiency Up to 88%
Lead Finish NiPdAu (Pb-free)
Operating Temperature -40 to 125°C
Package TO-220-5 (Pb-free)

Features

  • Electrically identical to LM2576T-12 with Pb-free termination
  • 3A output current with fixed 12V output
  • 150kHz fixed-frequency oscillator
  • Only 4 external components required
  • Shutdown mode: 50uA quiescent current
  • Thermal shutdown and current limit protection
  • RoHS compliant NiPdAu lead finish

Applications

  • RoHS-compliant buck converter designs
  • Automotive and industrial 12V power supplies
  • Battery-powered voltage regulation
  • Distributed power systems

The LM2576T-12/NOPB is the Pb-free variant of TI LM2576T-12, featuring NiPdAu termination for RoHS compliance. Electrically identical, providing fixed 12V at 3A from 15-40V input with only four external components and integrated protection features.

Identical to LM2576T-12, using fixed-frequency buck converter topology with internal NPN Darlington power switch at 150kHz. The only difference is the Pb-free NiPdAu lead finish on package terminals.

Pin Name Type Function
1 VIN Power Input supply voltage
2 Output Output Switch output to inductor
3 GND Ground Ground and thermal tab
4 Feedback Input Output voltage feedback
5 ON/OFF Input Shutdown control (low=ON)
  • RoHS-compliant 12V power supply from 24V industrial bus
  • Automotive Pb-free electronics
  • Green electronics designs requiring lead-free soldering
  • Replacement for standard LM2576T-12 in product revisions
Manufacturer Part Number Package Notes
TI LM2576T-12 TO-220-5 Standard non-Pb-free version
TI LM2576S-12/NOPB TO-263-5 SMD Pb-free (D2PAK)
onsemi NCV2576D2T12G D2PAK-5 Automotive AEC-Q100
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Quality Assurance

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

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Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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