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LP3972SQ-A413
Texas Instruments
IC PMU FOR APP PROCESSOR 40WQFN
1516 Pcs New Original In Stock
Processor PMIC 40-WQFN (5x5)
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Minimum 1
5.0 / 5.0
- (485 Ratings)
LP3972SQ-A413
Product Overview
1364159
DiGi Electronics Part Number
LP3972SQ-A413-DGManufacturer
Texas Instruments
LP3972SQ-A413
Description
IC PMU FOR APP PROCESSOR 40WQFNInventory
1516 Pcs New Original In Stock
Processor PMIC 40-WQFN (5x5)
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
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365 - Day Quality Guarantee - Every part fully backed.
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LP3972SQ-A413 Technical Specifications
Category
Power Management (PMIC), Power Management - Specialized
Packaging
-
Series
-
Product Status
Obsolete
Applications
Processor
Current - Supply
60µA
Voltage - Supply
2.7V ~ 5.5V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
40-WFQFN Exposed Pad
Supplier Device Package
40-WQFN (5x5)
Base Product Number
LP3972
Datasheet & Documents
HTML Datasheet
LP3972SQ-A413-DG
Environmental & Export Classification
RoHS Status
RoHS non-compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
LP3972SQ-A413TR
LP3972SQA413
LP3972SQ-A413CT
LP3972SQ-A413DKR
Standard Package
1,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
DiGi Electronics的物流超乎想像的迅速，讓我第一次購物就留下了好印象。
de desembre 02, 2025
Der Kundenservice hat mir nach dem Kauf schnell und effizient geholfen, was meinen Eindruck positiv beeinflusst hat.
de desembre 02, 2025
Delivery was incredibly efficient; I received my package in just a couple of days.
de desembre 02, 2025
I always receive thoughtful assistance from their after-sales team.
de desembre 02, 2025
Navigation is smooth on both desktop and mobile devices, making shopping convenient anywhere.
de desembre 02, 2025
Despite the low price, DiGi Electronics maintains high standards of reliability, which is rare to find in this market.
de desembre 02, 2025
Their professional support makes troubleshooting and technical questions straightforward.
de desembre 02, 2025
I was amazed by how quickly my order was processed and shipped. DiGi Electronics really knows how to keep their customers happy.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the LP3972SQ-A413 in a new processor power management application given its obsolete status?
Using the LP3972SQ-A413 in new designs carries significant supply chain risks due to its obsolete status from Texas Instruments. While current inventory exists (1469 pcs), long-term availability is not guaranteed, which can lead to production interruptions. For reliable design-in, evaluate last-time buy options and actively develop a second-source or drop-in replacement strategy. Consider upgrading to newer TI PMICs like the TPS650861 or pin-compatible alternatives with active status to ensure scalability and long-term support without requiring board re-spins.
How does the RoHS non-compliance of the LP3972SQ-A413 impact PCB assembly and end-product certification in industrial applications?
The RoHS non-compliance of the LP3972SQ-A413 restricts its use in consumer, medical, or industrial electronics targeting EU markets or requiring CE/UKCA marking. If you must use this PMIC, document an exemption (e.g., Category 8 for industrial monitoring equipment) and ensure downstream compliance reporting. For new designs, switch to RoHS-compliant alternatives like the LP87642SQ-15 or TPS6508642 to avoid regulatory holdups and facilitate global market access.
Can the LP3972SQ-A413 safely power modern ARM application processors like the AM62x series, or are there voltage sequencing limitations?
The LP3972SQ-A413 was designed for older application processors and may lack the precise voltage sequencing and dynamic voltage scaling required by modern SoCs like the TI AM62x. Its fixed rail configuration and limited programmability increase the risk of improper power-up/down sequencing, potentially damaging the processor. For reliable integration, verify compatibility with the target SoC’s power tree requirements, or replace with the more flexible TPS65942A-Q1, which supports advanced sequencing and PMIC-to-SoC communication via I2C.
What thermal considerations should be addressed when integrating the LP3972SQ-A413 in a compact 5x5mm WQFN package with high I/O loading?
The 40-WQFN (5x5) package of the LP3972SQ-A413 has limited thermal dissipation capability, especially under sustained load. Ensure the PCB design includes an adequate thermal pad connected to a solid ground plane with multiple vias to dissipate heat. Avoid placing heat-sensitive components nearby. Monitor junction temperature under worst-case conditions, and if thermal limits are approached, consider reducing ambient temperature, adding airflow, or using a PMIC with better thermal performance like the LP87638RHDT, which offers similar integration in a thermally enhanced package.
How does the LP3972SQ-A413 compare to the TPS65023 in terms of supply voltage range and quiescent current for battery-powered processor systems?
The LP3972SQ-A413 supports a wider input voltage range (2.7V–5.5V) compared to the TPS65023 (2.8V–5.5V), making it slightly more suitable for single-cell Li-ion systems nearing end-of-discharge. However, both have low quiescent current (60µA for LP3972SQ-A413), but the TPS65023 offers better integration for newer designs with improved transient response and I2C programmability. Given the LP3972SQ-A413's obsolete status and lack of configurability, the TPS65023 or newer TPS652180x variants are better long-term choices for battery-powered applications requiring reliability and design flexibility.
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.
LP3972SQ-A413 CAD Models
Texas Instruments LP3972SQ-A413 PCB symbols & footprints
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