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LM25010SD/NOPB
Texas Instruments
IC REG BUCK ADJ 1A 10WSON
2194 Pcs New Original In Stock
Buck Switching Regulator IC Positive Adjustable 2.5V 1 Output 1A 10-WDFN Exposed Pad
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5.0 / 5.0
- (87 Ratings)
LM25010SD/NOPB
Product Overview
1323993
DiGi Electronics Part Number
LM25010SD/NOPB-DGManufacturer
Texas Instruments
LM25010SD/NOPB
Description
IC REG BUCK ADJ 1A 10WSONInventory
2194 Pcs New Original In Stock
Buck Switching Regulator IC Positive Adjustable 2.5V 1 Output 1A 10-WDFN Exposed Pad
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
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LM25010SD/NOPB Technical Specifications
Category
Power Management (PMIC), Voltage Regulators - DC DC Switching Regulators
Packaging
Cut Tape (CT) & Digi-Reel®
Series
-
Product Status
Active
Function
Step-Down
Output Configuration
Positive
Topology
Buck
Output Type
Adjustable
Number of Outputs
1
Voltage - Input (Min)
6V
Voltage - Input (Max)
42V
Voltage - Output (Min/Fixed)
2.5V
Voltage - Output (Max)
37V
Current - Output
1A
Frequency - Switching
100kHz ~ 1MHz
Synchronous Rectifier
No
Operating Temperature
-40°C ~ 125°C (TJ)
Mounting Type
Surface Mount
Package / Case
10-WDFN Exposed Pad
Supplier Device Package
10-WSON (4x4)
Base Product Number
LM25010
Datasheet & Documents
HTML Datasheet
LM25010SD/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
LM25010SD/NOPBCT
LM25010SD/NOPBTR
LM25010SD/NOPBDKR
*LM25010SD/NOPB
LM25010SDCT-NDR
LM25010SDNOPB
-LM25010SD-NDR
LM25010SDTR-NDR
Standard Package
1,000
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
Les tarifs sont très compétitifs, ce qui nous aide à rester dans notre budget.
de desembre 02, 2025
Di Digi Electronics setzt auf umweltfreundliche Verpackungen und schnelle Lieferzeiten. Beides hat mich überzeugt.
de desembre 02, 2025
The helpfulness and expertise of their staff make each support experience excellent.
de desembre 02, 2025
Their consistent focus on quality and customer care keeps me a loyal customer.
de desembre 02, 2025
I felt valued as a customer because of how thoughtful and helpful their support was.
de desembre 02, 2025
Consistency in product quality keeps me coming back, knowing I'll get what I expect.
de desembre 02, 2025
DiGi Electronics shows great commitment to customer satisfaction after purchase.
de desembre 02, 2025
DiGi Electronics consistently ensures their packaging is secure, preventing any damage during transit.
de desembre 02, 2025
The durability and packaging quality make these products a top choice.
de desembre 02, 2025
DiGi Electronics’ after-sales support is outstanding, providing helpful solutions whenever needed.
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Frequently Asked Questions (FAQ)
What are the key design risks when using the LM25010SD/NOPB in high-input-voltage applications above 36V, and how can I ensure long-term reliability?
When operating the LM25010SD/NOPB near its 42V maximum input voltage—especially in automotive or industrial environments with load dump transients—voltage spikes can exceed the absolute maximum rating, risking catastrophic failure. To mitigate this, always include a robust input transient suppressor (e.g., TVS diode like SMAJ40A) and ensure your nominal input stays below 36V to allow headroom. Additionally, verify PCB creepage and clearance distances for high-voltage isolation, and consider derating the input voltage by 10–15% in mission-critical designs to account for long-term drift and surge events.
Can I replace the LM25010SD/NOPB with a more common buck regulator like the LM2596 or MP1584 in a 12V-to-5V, 1A application, and what trade-offs should I expect?
While the LM2596 or MP1584 may seem like drop-in replacements for the LM25010SD/NOPB in a 12V-to-5V, 1A design, they come with significant trade-offs. The LM25010SD/NOPB operates at up to 1MHz switching frequency, enabling smaller inductors and better transient response, whereas the LM2596 (150kHz) requires larger magnetics and has higher switching losses. The MP1584, though higher frequency, lacks the LM25010SD/NOPB’s wide 6–42V input range and exposed thermal pad for superior heat dissipation. Replacing it may reduce BOM cost but increases board area, thermal stress, and EMI risk—especially problematic in noise-sensitive or high-temperature environments.
How should I handle thermal management for the LM25010SD/NOPB in a compact, enclosed design with minimal airflow?
The LM25010SD/NOPB’s 10-WSON package relies heavily on the exposed pad for heat dissipation. In enclosed or low-airflow environments, you must connect the thermal pad to a large copper pour on the PCB (preferably on multiple layers with thermal vias) to act as a heat spreader. Without adequate copper area, the junction temperature can exceed 125°C under continuous 1A load, especially at high input voltages. Use a thermal simulation or infrared imaging during prototyping to validate hot spots, and consider adding a small heatsink or increasing ground plane coverage if operating above 70% of max load in ambient temperatures over 50°C.
Is the LM25010SD/NOPB suitable for battery-powered systems where input voltage can drop below 6V, and what alternatives exist if not?
No, the LM25010SD/NOPB is not suitable for battery-powered systems where the input may drop below its 6V minimum (e.g., Li-ion packs under load or discharge). Attempting to operate below 6V can cause dropout, erratic regulation, or latch-up. For such applications, consider a buck-boost converter like the TPS63060 or LMR62421, which maintain regulation down to 2.5V. If you must use a buck topology, ensure your battery management system prevents discharge below 6.5V, but this reduces usable capacity and increases system complexity—making a buck-boost a more reliable long-term choice.
What layout practices are critical when designing with the LM25010SD/NOPB to avoid instability or excessive EMI, especially in high-noise environments?
Proper PCB layout is essential for stable operation of the LM25010SD/NOPB. Keep the SW node trace as short as possible to minimize radiated EMI, and place the input capacitor (low-ESR ceramic, e.g., 10µF X7R) within 5mm of the VIN and GND pins. The feedback trace must be routed away from the inductor and SW node to prevent noise coupling—use a Kelvin connection directly to the output capacitor. Also, ensure the exposed thermal pad is solidly grounded with multiple vias to the inner ground plane. Poor layout can cause subharmonic oscillation, output ripple exceeding 100mVpp, or failure to meet FCC/CE EMI standards, particularly problematic in industrial or medical 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.
LM25010SD/NOPB CAD Models
Texas Instruments LM25010SD/NOPB PCB symbols & footprints
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