Counterfeit and defect prevention
Visual and packaging inspection
Electrical performance verification
Service Email:
[email protected]
>
LM2675M-12/NOPB
Texas Instruments
IC REG BUCK 12V 1A 8SOIC
1910 Pcs New Original In Stock
Buck Switching Regulator IC Positive Fixed 12V 1 Output 1A 8-SOIC (0.154", 3.90mm Width)
Request Quote
(Ships tomorrow)
*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (74 Ratings)
LM2675M-12/NOPB
Product Overview
1354079
DiGi Electronics Part Number
LM2675M-12/NOPB-DGManufacturer
Texas Instruments
LM2675M-12/NOPB
Description
IC REG BUCK 12V 1A 8SOICInventory
1910 Pcs New Original In Stock
Buck Switching Regulator IC Positive Fixed 12V 1 Output 1A 8-SOIC (0.154", 3.90mm Width)
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
Quality Assurance
365 - Day Quality Guarantee - Every part fully backed.
90 - Day Refund or Exchange - Defective parts? No hassle.
Limited Stock, Order Now - Get reliable parts without worry.
Global Shipping & Secure Packaging
Worldwide Delivery in 3-5 Business Days
100% ESD Anti-Static Packaging
Real-Time Tracking for Every Order
Secure & Flexible Payment
Credit Card, VISA, MasterCard, PayPal, Western Union, Telegraphic Transfer(T/T) and more
All payments encrypted for security
LM2675M-12/NOPB Technical Specifications
Category
Power Management (PMIC), Voltage Regulators - DC DC Switching Regulators
Packaging
Tube
Series
SIMPLE SWITCHER®
Product Status
Active
Function
Step-Down
Output Configuration
Positive
Topology
Buck
Output Type
Fixed
Number of Outputs
1
Voltage - Input (Min)
6.5V
Voltage - Input (Max)
40V
Voltage - Output (Min/Fixed)
12V
Voltage - Output (Max)
-
Current - Output
1A
Frequency - Switching
260kHz
Synchronous Rectifier
No
Operating Temperature
-40°C ~ 125°C (TJ)
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.154", 3.90mm Width)
Supplier Device Package
8-SOIC
Base Product Number
LM2675
Datasheet & Documents
Manufacturer Product Page
LM2675M-12/NOPB Specifications
HTML Datasheet
LM2675M-12/NOPB-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
*LM2675M-12/NOPB
TEXTISLM2675M-12/NOPB
-LM2675M-12/NOPB-DG
LM2675M-12-NDR
-LM2675M-12-NDR
LM2675M12NOPB
2156-LM2675M-12/NOPB-TI
Standard Package
95
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
J'ai été agréablement surpris par la rapidité de leur envoi, parfait pour mes besoins.
de desembre 02, 2025
I appreciated the quick response times when browsing through different pages.
de desembre 02, 2025
Received my order rapidly, and the support was top-notch.
de desembre 02, 2025
The packaging is secure, and shipments are dispatched without delay, showcasing their attention to logistics detail.
de desembre 02, 2025
Their product quality has remained outstanding over numerous transactions.
de desembre 02, 2025
The whole process from order to delivery was surprisingly quick.
de desembre 02, 2025
DiGi Electronics ensures fast delivery times and maintains high product standards.
de desembre 02, 2025
Their commitment to after-sales support makes me a loyal customer.
Publish Evalution
Evalution Message
Please enter your review message.
Please post honest comments and do not post ilegal comments.
Frequently Asked Questions (FAQ)
Can I use the LM2675M-12/NOPB as a drop-in replacement for the older LM2596-12 in my 24V-to-12V industrial control board, and what layout or thermal risks should I anticipate?
While the LM2675M-12/NOPB and LM2596-12 are both 12V fixed-output buck regulators, they are not direct drop-in replacements due to key differences in switching frequency (260kHz vs. 150kHz) and pinout. The LM2675M-12/NOPB uses an 8-SOIC package with a different thermal pad configuration, requiring PCB layout adjustments—especially for the SW node and ground return paths. Additionally, the higher switching frequency reduces required inductor size but increases sensitivity to parasitic inductance; improper layout can cause voltage spikes and EMI. Ensure your input capacitor is placed within 5mm of VIN and GND pins, and verify thermal performance under full 1A load, as the 8-SOIC package has limited heat dissipation without a copper pour underneath. Always validate stability with your actual load profile before full deployment.
What are the critical design constraints when using the LM2675M-12/NOPB in a high-vibration automotive environment near a 14V battery system, and how do I mitigate failure risks?
In automotive applications, the LM2675M-12/NOPB must handle load dumps up to 40V (within its max input rating), but sustained operation near 14V with cold-crank dips below 6.5V can cause dropout. Ensure your system includes input TVS protection (e.g., SMAJ33A) to clamp transients and bulk capacitance (≥100µF low-ESR electrolytic + 10µF ceramic) to maintain regulation during voltage sags. Vibration demands robust solder joints—use conformal coating and avoid long traces to the feedback node. The device’s -40°C to 125°C operating range is suitable, but thermal cycling may fatigue the 8-SOIC package; consider underfilling or selecting a version in a more robust package like TO-263 if long-term reliability is critical. Always derate output current by 20% in underhood applications.
How does the LM2675M-12/NOPB compare to the newer TPS54302DDCR for a 12V/1A output in terms of efficiency, noise, and long-term reliability in a medical device power supply?
The LM2675M-12/NOPB offers simplicity and proven reliability but lags behind the TPS54302DDCR in efficiency (typically 85% vs. 92% at 1A) and noise performance due to its lower switching frequency (260kHz vs. 570kHz) and lack of synchronous rectification. The TPS54302DDCR also provides better transient response and integrated features like power-good and enable control, which are valuable in medical designs. However, the LM2675M-12/NOPB has a longer field-proven track record and lower BOM complexity. For medical applications where EMI is critical, the LM2675M-12/NOPB’s lower frequency may actually simplify filtering, but you must add external snubbers if ringing exceeds 50mVpp. If long-term availability and qualification are priorities, the LM2675M-12/NOPB remains a strong choice, but consider the TPS54302DDCR if efficiency or board space is constrained.
What happens if I operate the LM2675M-12/NOPB continuously at 1A output with only 7V input, and how does this impact thermal design and MTBF?
Operating the LM2675M-12/NOPB at 7V input and 1A output results in a 5V dropout, causing high power dissipation (P = (7V - 12V) × 1A = -5W, but actual loss is ~1.2W due to switching losses and duty cycle). This pushes the junction temperature close to or beyond safe limits without adequate heatsinking, especially in ambient temperatures above 50°C. The 8-SOIC package has a θJA of ~80°C/W, so even 1W dissipation can raise TJ by 80°C—exceeding 125°C TJ with modest ambient heat. This accelerates electromigration and reduces MTBF significantly. To mitigate, increase input voltage to ≥10V if possible, add a copper pour under the IC connected to GND, or use forced airflow. Alternatively, consider a buck converter with lower dropout or synchronous architecture like the LM2676 if headroom is tight.
Can I parallel two LM2675M-12/NOPB devices to achieve 2A output current, and what are the risks of current imbalance and oscillation?
Paralleling LM2675M-12/NOPB devices is not recommended due to lack of current-sharing control and fixed feedback thresholds. Even with matched input/output capacitors and inductors, minor variations in PCB layout or component tolerances cause significant current imbalance—one device may carry 70% of the load, leading to localized overheating and premature failure. Additionally, the fixed 260kHz switching frequency lacks phase synchronization, risking beat frequencies and increased output ripple. If higher current is needed, use a single higher-current regulator like the LM2678-12 (5A) or LM25116 (dual-phase controller). If you must parallel, add 0.1Ω ballast resistors in series with each output and ensure symmetrical thermal and electrical paths, but expect reduced efficiency and reliability—this approach is only acceptable for non-critical, short-lifetime applications.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
LM2675M-12/NOPB CAD Models
Texas Instruments LM2675M-12/NOPB PCB symbols & footprints
productDetail
