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LM22678TJE-ADJ/NOPB

5A buck regulator, 4.5-42V input, adjustable output, 500kHz, TO-263-7

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Manufacturer Part：

LM22678TJE-ADJ/NOPB

Package：

TO-263-EP-7 (10.16 x 9.85 mm, exposed pad)

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Description

Product Overview

The LM22678TJE-ADJ/NOPB from Texas Instruments is a 5A step-down voltage regulator with 4.5V to 42V input range and adjustable output, featuring voltage-mode control with internal compensation.

Key Specifications

Manufacturer Texas Instruments
Topology Buck (Step-Down)
Input Voltage 4.5V to 42V
Output Voltage Adjustable (from 1.285V)
Output Current 5A
Switching Freq 500 kHz
Internal MOSFET 100 mΩ N-Channel
Feedback Accuracy ±1.5%
Package TO-263-EP-7 (NDR)
Operating Temperature -40°C to +125°C

Features

  • Wide 4.5V to 42V input range
  • 5A continuous output current
  • 100 mΩ integrated N-channel MOSFET
  • Internal compensation (voltage mode)
  • 500 kHz switching frequency
  • ±1.5% feedback accuracy
  • Precision enable pin
  • Integrated boot diode and soft-start
  • Thermal shutdown and current limit

Applications

  • Industrial distributed power
  • Automotive 12V/24V systems
  • Embedded computing power supplies
  • Battery-powered systems

The LM22678TJE-ADJ/NOPB from Texas Instruments is a SIMPLE SWITCHER 5A step-down regulator with wide 4.5V to 42V input range. The adjustable output (from 1.285V) with ±1.5% feedback accuracy is set by external resistors. An integrated 100 mΩ N-channel MOSFET and internal voltage-mode compensation simplify design. Features include precision enable, integrated boot diode and soft-start, and comprehensive protection.

The LM22678 uses voltage-mode control with internal Type III compensation, stable with low-ESR ceramic output capacitors. A precision enable pin provides controlled startup. The integrated boot diode simplifies external component count. Current limit protects the internal MOSFET, with foldback mode during severe overload. The 500 kHz fixed frequency enables compact inductor selection.

Pin Name Function
1 SW Switching output
2 VIN Input supply
3 BOOT Bootstrap capacitor
4 GND Ground
5 NC No connect
6 FB Feedback input
7 EN Precision enable
Pad GND Exposed thermal pad
  • Industrial 24V bus to logic supply conversion
  • Automotive 12V/24V power systems
  • Embedded computing point-of-load
  • Battery-powered device regulation
Manufacturer Part Number Notes
TI LM22678MR-5.0/NOPB Fixed 5V output version
TI LM22675TJE-ADJ/NOPB 3A version
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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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Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

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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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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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