Texas Instruments LM26480SQX-AA/NOPB
- Part No.:
- LM26480SQX-AA/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
LM26480SQX-AA/NOPB.pdf
- Description:
- IC REG QUAD BUCK/LNR SYNC 24WQFN
- Quantity:
- Payment:

- Shipping:

Inventory:8,174
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Product details
Overview
LM26480SQX-AA/NOPB from Texas Instruments is a multi-function power management unit optimized for low-power digital applications, application processors, FPGAs, and compact embedded systems.
As a multi-function pmu with two buck converters and two ldo regulators solution, LM26480SQX-AA/NOPB supports dual 1.5 A buck regulation, dual 300 mA LDO regulation, enable control, power-good signaling, protection functions, and compact WQFN packaging. For engineers reviewing the LM26480SQX-AA/NOPB datasheet, LM26480SQX-AA/NOPB pinout, LM26480SQX-AA/NOPB application, or LM26480SQX-AA/NOPB equivalent, this device is suitable for application processors, FPGA boards, portable devices, communication modules, and compact embedded systems.
Technical Context
In embedded electronic systems, LM26480SQX-AA/NOPB typically operates as a four-rail PMU that generates two switching rails and two linear rails from a low-voltage system input.
The device architecture helps engineers manage power conversion efficiency, thermal performance, rail sequencing, output accuracy, and board-level reliability. PCB designers should verify input range, load-current budget, output-voltage configuration, thermal behavior, and layout guidance directly against the datasheet before production release.
LM26480SQX-AA/NOPB is commonly used in industrial controllers, communication modules, portable instruments, processor boards, sensor platforms, and compact embedded devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Device Type | Multi-function PMU with two buck converters and two LDO regulators |
| Input / Supply Range | 2.8 V to 5.5 V input range for portable and embedded power systems. |
| Regulator Outputs | Two 1.5 A buck regulators and two 300 mA LDO regulators. |
| Switching / Control Behavior | 2 MHz buck switching frequency supports compact external components. |
| Control and Monitoring | Enable, status, feedback, and monitoring functions support system-level power management. |
| Protection Features | Protection functions may include undervoltage lockout, current limiting, thermal shutdown, short-circuit protection, or fault reporting. |
| Package | 24-pin WQFN package, suffix-dependent tape/reel or automotive qualification option. |
| Operating Environment | Verify suffix-specific operating temperature range in the datasheet. |
Pinout & Package
The LM26480SQX-AA/NOPB pinout is optimized for compact power conversion, regulator feedback, enable control, status monitoring, and thermal grounding.
For PCB design, important practices include placing input/output capacitors close to the IC, using short high-current loops, routing feedback away from switching nodes, and connecting exposed pads to solid copper.
| Pin / Function | PCB Design and Circuit Role |
|---|---|
| VIN / Supply Pins | Input supply connections supporting regulator power and internal control circuitry. |
| Switching Nodes | High-frequency switching connections that should use compact power-loop routing. |
| Output Pins | Regulated output connections supplying downstream processor, memory, analog, or system rails. |
| Feedback / Sense Pins | Regulation feedback or sense nodes requiring quiet routing away from switching noise. |
| Enable / Control Pins | Logic inputs supporting power sequencing, shutdown, mode control, or system management. |
| Power-Good / Reset / Status Pins | Monitoring outputs or status pins used for processor supervision and fault handling. |
| GND / Exposed Pad | Ground and thermal return path requiring low-impedance PCB copper connection. |
Key Features
- Two 1.5 A buck regulators and two 300 mA LDOs support four-rail systems.
- 2 MHz switching operation enables small external components.
- PWM-to-PFM behavior improves light-load efficiency.
- Power-good and reset functions support controlled startup.
- Integrated protection and monitoring features support reliable embedded power operation.
- Surface-mount package supports compact industrial, consumer, or communication-system PCB layouts.
Applications
| Processor and Digital Systems | Industrial Embedded Electronics |
|---|---|
|
Use Scenario: Used in processor, ASIC, FPGA, DSP, or embedded controller platforms. IC Role: Provides regulated rails, sequencing, bias, or supervisory power functions. Use Value: Helps reduce discrete regulator count and simplify compact power-tree design. |
Use Scenario: Used in automation modules, gateways, control boards, measurement systems, and industrial communication devices. IC Role: Supplies stable power to digital, analog, memory, or peripheral subsystems. Use Value: Improves power integration, reliability, and repeatable production layout. |
| Portable and Consumer Products | Communication and Automotive-Style Platforms |
|
Use Scenario: Used in battery-powered electronics, handheld instruments, smart devices, and compact modules. IC Role: Manages efficient voltage conversion and low-power rail operation. Use Value: Supports smaller PCB area, better efficiency, and improved thermal behavior. |
Use Scenario: Used in networking modules, infotainment, automotive-style controllers, or connected edge devices. IC Role: Provides robust conversion, monitoring, and system power management. Use Value: Supports reliable operation across demanding supply and load conditions. |
Equivalent & Alternatives
When evaluating a LM26480SQX-AA/NOPB equivalent, engineers should compare regulator topology, number of outputs, output-current capability, output-voltage options, package footprint, thermal behavior, control interface, protection features, and long-term sourcing requirements.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM26480SQ-AA/NOPB | Same LM26480 family with different packing, qualification, or suffix option. | Used when the same four-rail PMU architecture is required with a different orderable option. | Choose according to package, automotive qualification, packing, and procurement requirements. |
| ADP5037 | Analog Devices PMU with two buck regulators and two LDOs but different current ratings and package. | Used in similar compact four-rail power systems. | Compare output current, output-voltage options, package, and system requirements. |
Compared with LM26480SQ-AA/NOPB, LM26480SQX-AA/NOPB is optimized for the exact suffix, package, or configuration required by the target power tree. LM26480SQX-AA/NOPB vs ADP5037 selection depends on integration level, rail count, output-current budget, noise target, thermal design, and PCB area.
Quality
LM26480SQX-AA/NOPB should be sourced as original Texas Instruments components through traceable and controlled supply channels. Quality verification procedures may include package inspection, top-mark validation, solderability testing, moisture-sensitivity handling review, electrical output verification, and functional testing on the target PCB.
Because the device is used in power-management applications, production validation should include startup behavior, output accuracy, load-transient response, thermal performance, protection behavior, and layout-sensitive noise or ripple checks. Traceable sourcing helps maintain reliable long-term operation and reduce counterfeit supply-chain risk.
Availability
LM26480SQX-AA/NOPB available at Aetrix Electronics and is suitable for embedded and industrial power-management platforms requiring stable component availability and repeatable production support.
Supply support may include volume procurement planning, scheduled delivery arrangements, traceable sourcing management, and long-term supply support for OEM, industrial electronics manufacturers, communication-system developers, automotive electronics programs, and embedded product production.
For production builds, confirming package type, output-voltage option, load-current requirements, temperature grade, lead time, lifecycle status, and sourcing continuity helps reduce procurement risk and improve manufacturing stability.
Manufacturer
Texas Instruments is a global semiconductor manufacturer specializing in analog ICs, power-management devices, embedded processors, sensors, connectivity products, and industrial semiconductor solutions for automotive, industrial, communication, and consumer applications.
For embedded power systems, Texas Instruments provides DC-DC converters, LDO regulators, PMICs, sequencers, supervisors, and reference designs that support compact and scalable power-distribution architectures.
FAQ
What is LM26480SQX-AA/NOPB used for?
LM26480SQX-AA/NOPB is used for regulated power conversion, rail generation, bias supply, sequencing, and embedded power management.
Where can I find the LM26480SQX-AA/NOPB datasheet download?
The LM26480SQX-AA/NOPB datasheet download is available from Texas Instruments. The datasheet includes electrical specifications, package details, application information, operating limits, and PCB design guidance.
What should be considered in LM26480SQX-AA/NOPB pinout design?
LM26480SQX-AA/NOPB pinout design should prioritize short power loops, correct capacitor placement, exposed-pad grounding, feedback routing, enable sequencing, and thermal design.
What are common LM26480SQX-AA/NOPB equivalent solutions?
Common LM26480SQX-AA/NOPB equivalent alternatives include LM26480SQ-AA/NOPB and ADP5037, depending on rail count, current requirements, package, control functions, and sourcing objectives.
Is LM26480SQX-AA/NOPB suitable for production power designs?
Yes. LM26480SQX-AA/NOPB can be used in production power systems when the datasheet limits, thermal design, component selection, layout requirements, and sourcing traceability are verified for the target application.
LM26480SQX-AA/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Topology:
- Step-Down (Buck) Synchronous (2), Linear (LDO) (2)
- Number of Outputs:
- 4
- Frequency - Switching:
- 2MHz
- Voltage/Current - Output 1:
- 0.8V ~ 2V, 1.5A
- Voltage/Current - Output 2:
- 1V ~ 3.3V, 1.5A
- Voltage/Current - Output 3:
- 1V ~ 3.5V, 300mA
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- No
- Voltage - Supply:
- 2.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-WQFN (4x4)
LM26480SQX-AA/NOPB FAQ
1.How can I place an order for LM26480SQX-AA/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM26480SQX-AA/NOPB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LM26480SQX-AA/NOPB reliable?
The price and inventory of LM26480SQX-AA/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM26480SQX-AA/NOPB is usually 5 days.
3.What payment methods are accepted for LM26480SQX-AA/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM26480SQX-AA/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM26480SQX-AA/NOPB?
LM26480SQX-AA/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM26480SQX-AA/NOPB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LM26480SQX-AA/NOPB?
For technical support, including LM26480SQX-AA/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM26480SQX-AA/NOPB requirements.
6.How does Aetrix verify that LM26480SQX-AA/NOPB is sourced from the original manufacturer or authorized distributors?
All LM26480SQX-AA/NOPB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LM26480SQX-AA/NOPB meets industry standards.
7.What is the process for return or replacement of LM26480SQX-AA/NOPB?
All LM26480SQX-AA/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM26480SQX-AA/NOPB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LM26480SQX-AA/NOPB part is unused and in its original packaging.
Return procedure for LM26480SQX-AA/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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