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LM25066PSQ/NOPB
Texas Instruments
IC POWER MANAGEMENT 24WQFN
1452 Pcs New Original In Stock
Base Station-Networking Line Cards, Servers PMIC 24-WQFN (4x5)
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5.0 / 5.0
- (182 Ratings)
LM25066PSQ/NOPB
Product Overview
1362334
DiGi Electronics Part Number
LM25066PSQ/NOPB-DGManufacturer
Texas Instruments
LM25066PSQ/NOPB
Description
IC POWER MANAGEMENT 24WQFNInventory
1452 Pcs New Original In Stock
Base Station-Networking Line Cards, Servers PMIC 24-WQFN (4x5)
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
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LM25066PSQ/NOPB Technical Specifications
Category
Power Management (PMIC), Power Management - Specialized
Packaging
-
Series
-
Product Status
Active
Applications
Base Station-Networking Line Cards, Servers
Current - Supply
5.8mA
Voltage - Supply
2.9V ~ 17V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
24-WFQFN Exposed Pad
Supplier Device Package
24-WQFN (4x5)
Base Product Number
LM25066
Datasheet & Documents
Manufacturer Product Page
LM25066PSQ/NOPB Specifications
HTML Datasheet
LM25066PSQ/NOPB-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
2156-LM25066PSQ/NOPB
296-40161-2
LM25066PSQ/NOPB-DG
296-40161-1
296-40161-6
TEXTISLM25066PSQ/NOPB
-296-40161-1-DG
-LM25066PSQ-NDR
Standard Package
1,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
Fast dispatch time means I get my items quickly, which is fantastic.
de desembre 02, 2025
The overall experience with Di Digi Electronics has been smooth, thanks to their reliable shipping and product quality.
de desembre 02, 2025
I appreciate how quickly the order was dispatched and arrived at my doorstep.
de desembre 02, 2025
They provide quick shipment and attentive service, which I highly appreciate.
de desembre 02, 2025
The robustness of the packaging gave my fragile items the protection they needed.
de desembre 02, 2025
DiGi Electronics’ product diversity has allowed us to upgrade our facilities seamlessly.
de desembre 02, 2025
I received my order in record time, and the packaging was robust and reliable.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the LM25066PSQ/NOPB in a high-temperature server environment near its 85°C operating limit?
When designing the LM25066PSQ/NOPB into server power systems operating near 85°C, thermal derating and PCB layout become critical. The device draws 5.8mA supply current but can heat up under sustained load due to internal regulation and monitoring functions. To mitigate thermal stress, ensure adequate copper pour for thermal dissipation, especially connected to the exposed pad. Avoid placing near high-power components, and consider airflow or active cooling in dense line cards. Also verify that remote sense inputs (if used) are routed with matched lengths to prevent erroneous voltage readings caused by thermal gradients. Board-level thermal validation with real-world loads is recommended before final deployment.
Can the LM25066PSQ/NOPB replace the LTC2977 in a base station power monitoring application, and what integration challenges should I expect?
While both the LM25066PSQ/NOPB and LTC2977 are PMICs for power monitoring in networking equipment, direct replacement requires careful review. The LTC2977 supports PMBus commands and offers higher integration with EEPROM and more fault logs, whereas the LM25066PSQ/NOPB uses a simpler interface and lacks non-volatile fault storage. When replacing LTC2977 with the LM25066PSQ/NOPB, verify compatibility with your existing I2C/SMBus firmware stack—TI's device may not support all PMBus commands. Also, confirm external sense resistor values are within the LM25066’s measurement range (typically 10–20mΩ), and recalibrate threshold settings. Simulate fault scenarios like overcurrent to ensure proper response timing.
How does the wide 2.9V to 17V supply range of the LM25066PSQ/NOPB impact system reliability in unregulated intermediate bus architectures?
The LM25066PSQ/NOPB’s 2.9V to 17V input range offers flexibility in unregulated 12V intermediate bus systems, but introduces reliability concerns during voltage transients. In base station line cards, sudden load shifts can cause supply spikes beyond 17V, risking damage. Always include transient voltage suppression (TVS) diodes and input capacitors near the device’s VIN pin. Use a small ferrite bead for additional filtering, but avoid excessive impedance that could affect internal reference stability. Monitor startup behavior in brown-out conditions, as low-voltage lockout (UVLO) thresholds are not user-adjustable. Validate with dynamic load testing across the full operating temperature range.
What PCB layout best practices minimize measurement errors when using the LM25066PSQ/NOPB for precision current sensing?
To maintain accuracy in current sensing with the LM25066PSQ/NOPB, use Kelvin (4-wire) connections to the external sense resistor, routing differential sense traces as tightly coupled pairs directly to the SENSE+/SENSE− pins. Keep these traces away from switching nodes or high-current paths to prevent noise coupling. Use a guard ring around the sense traces connected to ground if necessary. Place the sense resistor close to the load and device, and avoid vias in high-impedance analog paths. The 24-WQFN (4x5) package’s exposed pad must be soldered to a solid ground plane for thermal and electrical stability. These steps reduce offset and drift errors that can exceed 2–3% otherwise.
What are the long-term reliability concerns with the LM25066PSQ/NOPB in humid environments, given its MSL 3 (168-hour) rating?
With an MSL 3 rating, the LM25066PSQ/NOPB is susceptible to moisture absorption, leading to package cracking or wire bond failure during solder reflow if not handled properly. Boards stored in high-humidity environments must follow JEDEC guidelines: bake the device at 125°C for 24 hours if exposed beyond 168 hours at ambient conditions above 30°C/60% RH. For field reliability, conformal coating or sealed enclosures are advised in outdoor base station applications. Ensure the PCB design includes proper creepage and clearance distances, and avoid condensation-prone locations. Use humidity indicators in storage and production to track environmental exposure.
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.
LM25066PSQ/NOPB CAD Models
Texas Instruments LM25066PSQ/NOPB PCB symbols & footprints
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