Texas Instruments LM5012QDDARQ1
- Part No.:
- LM5012QDDARQ1
- Manufacturer:
- Texas Instruments
- Package:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM5012QDDARQ1.pdf
- Description:
- IC REG BUCK ADJ 2.5A 8SOPWR
- Quantity:
- Payment:

- Shipping:

Inventory:558
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Product details
Overview
LM5012QDDARQ1 from Texas Instruments is an automotive-qualified high-voltage step-down switching regulator designed for efficient DC/DC power conversion in automotive, industrial, and embedded power-management systems. The device supports wide input-voltage operation and integrates control functionality for compact buck-regulator designs used in distributed power architectures.
As part of the Texas Instruments automotive power-management portfolio, LM5012QDDARQ1 combines high-voltage input capability, efficient switching regulation, automotive-grade reliability, and compact package integration for harsh electrical environments. For engineers reviewing the LM5012QDDARQ1 datasheet, LM5012QDDARQ1 pinout, LM5012QDDARQ1 application, or LM5012QDDARQ1 equivalent, this device is widely used in automotive body electronics, industrial control modules, telematics units, battery-powered systems, and embedded voltage-regulation platforms.
Technical Context
In automotive and embedded power systems, LM5012QDDARQ1 operates as a high-voltage buck regulator converting higher DC input rails into stable lower-voltage supplies for microcontrollers, sensors, communication ICs, interface devices, and auxiliary circuits.
The switching-regulator architecture improves efficiency compared with linear regulation, reducing thermal load in compact electronic modules. Its wide input-voltage capability makes it suitable for systems exposed to automotive battery variation, industrial supply fluctuation, and distributed DC power rails.
LM5012QDDARQ1 is commonly used in automotive control units, infotainment subsystems, telematics hardware, industrial automation modules, power-distribution boards, and embedded systems requiring reliable step-down voltage conversion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Device Type | High-voltage step-down switching regulator for automotive and embedded power conversion. |
| Input Voltage Capability | Wide input-voltage support enables use with automotive battery rails and industrial DC supplies. |
| Output Regulation | Provides regulated lower-voltage output for embedded loads and auxiliary circuits. |
| Switching Architecture | Buck regulator topology improves conversion efficiency and reduces thermal dissipation. |
| Automotive Qualification | Q1-grade device suitable for automotive electronic system requirements. |
| Protection Features | Integrated protection functionality supports reliable operation under abnormal conditions. |
| SO PowerPAD Package | Thermally enhanced surface-mount package supports compact PCB power designs. |
Pinout & Package
The LM5012QDDARQ1 pinout is optimized for high-voltage buck-regulator PCB layouts and includes input voltage, switching node, feedback, control, compensation, grounding, and thermal pad connections.
For PCB implementation, low-inductance switching-loop routing, close input and output capacitor placement, stable feedback routing, thermal copper areas, and proper grounding help improve efficiency, EMI behavior, and long-term operating reliability.
| Pin / Function | PCB Design and Circuit Role |
|---|---|
| VIN | Main high-voltage input supporting step-down conversion from automotive or industrial rails. |
| SW | Switching-node connection driving the external power-stage inductor. |
| FB | Feedback input supporting regulated output-voltage control. |
| EN / UVLO | Enable and undervoltage control supporting power sequencing and startup management. |
| RT / SYNC | Timing or synchronization connection supporting switching-frequency configuration. |
| GND / PowerPAD | Ground and thermal structure supporting stable operation and heat dissipation. |
Key Features
- Automotive-qualified high-voltage buck regulator for embedded power systems.
- Wide input-voltage capability supports automotive and industrial DC rails.
- Switching-regulator architecture improves efficiency and reduces heat generation.
- Integrated control and protection functions simplify power-supply design.
- Thermally enhanced package supports compact PCB integration.
- Suitable for body electronics, telematics, industrial control, and distributed power modules.
Applications
| Automotive Body Electronics | Telematics & Infotainment Systems |
|---|---|
|
Use Scenario: Body control modules, lighting controllers, and auxiliary automotive electronics. IC Role: LM5012QDDARQ1 converts automotive battery rails into regulated embedded supply voltages. Use Value: Improves power efficiency and supports reliable automotive module operation. |
Use Scenario: Telematics units, infotainment modules, and vehicle communication platforms. IC Role: Provides stable DC/DC conversion for processors, interface ICs, and communication circuits. Use Value: Supports stable power delivery under variable vehicle supply conditions. |
| Industrial Control Modules | Distributed Embedded Power Systems |
|
Use Scenario: Industrial automation modules, sensor controllers, and remote I/O systems. IC Role: Generates regulated supply rails from industrial DC power inputs. Use Value: Improves power-system efficiency and embedded control reliability. |
Use Scenario: Multi-rail embedded platforms, battery-powered systems, and auxiliary power boards. IC Role: Performs local step-down conversion near sensitive electronic loads. Use Value: Reduces distribution losses and improves system-level power architecture. |
Equivalent & Alternatives
When evaluating LM5012QDDARQ1 equivalent devices, engineers should compare input-voltage range, output-current capability, switching frequency, automotive qualification, package thermal performance, and protection features.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5164-Q1 | Automotive buck converter with different current capability, control architecture, and package options. | Used in automotive and industrial distributed power systems. | Choose LM5012QDDARQ1 for established LM5012-based high-voltage buck designs. |
| LM5017-Q1 | High-voltage regulator with different integration level and output-current characteristics. | Commonly used in automotive auxiliary supplies and industrial power modules. | Choose LM5012QDDARQ1 when its pinout, power range, and thermal package match the design target. |
Compared with LM5164-Q1, LM5012QDDARQ1 is suited for legacy and established automotive high-voltage buck-regulator designs requiring stable sourcing and proven power architecture. LM5012QDDARQ1 vs LM5017-Q1 selection depends on current requirements, switching topology, board-space constraints, and automotive power-system design objectives.
Quality
LM5012QDDARQ1 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, switching-function verification, thermal testing, electrical characterization, and incoming inspection according to automotive and industrial power-management production requirements.
Because the device operates in high-voltage switching environments, optimized PCB layout, low-inductance current paths, stable feedback routing, adequate thermal copper, and proper EMI control help maintain reliable regulation performance and long-term operational stability. Traceable sourcing supports manufacturing quality and reduces counterfeit supply-chain risk.
Availability
LM5012QDDARQ1 available at Aetrix Electronics and suitable for automotive power modules, industrial DC/DC conversion, embedded control systems, telematics hardware, and distributed power platforms requiring stable component supply and repeatable production support.
Supply support may include scheduled delivery planning, volume procurement support, BOM continuity assistance, traceable sourcing management, and long-term availability support for OEM manufacturers, automotive electronics developers, industrial system builders, and electronics production programs.
For production deployment, confirming package type, automotive grade, input-voltage range, current requirements, thermal specifications, and sourcing continuity helps reduce procurement risk and improve manufacturing stability.
Manufacturer
Texas Instruments is a semiconductor manufacturer specializing in analog ICs, embedded processors, power-management devices, signal-chain technologies, and industrial semiconductor solutions for automotive, communication, industrial, and consumer applications.
The Texas Instruments automotive power-management portfolio focuses on high-voltage conversion, efficient DC/DC regulation, robust protection features, thermal performance, and long-term reliability for vehicle electronics, industrial automation, embedded systems, and distributed power architectures.
FAQ
What is LM5012QDDARQ1 used for?
LM5012QDDARQ1 is used for automotive DC/DC conversion, body electronics, telematics modules, industrial control systems, and embedded distributed power applications.
Where can I find the LM5012QDDARQ1 datasheet download?
The LM5012QDDARQ1 datasheet is available from Texas Instruments and includes electrical specifications, switching characteristics, package information, protection details, and PCB layout guidance.
What should be considered in LM5012QDDARQ1 PCB design?
PCB implementation should prioritize low-inductance switching loops, close capacitor placement, stable feedback routing, proper grounding, thermal copper, and EMI-aware power-stage layout.
Is LM5012QDDARQ1 suitable for automotive systems?
Yes. LM5012QDDARQ1 is an automotive-qualified version suitable for vehicle electronic modules and automotive power-management applications.
What are common LM5012QDDARQ1 equivalent solutions?
Common equivalent alternatives include LM5164-Q1 and LM5017-Q1 depending on input-voltage requirements, output-current needs, thermal design, and automotive power-system architecture.
LM5012QDDARQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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):
- 100V
- Voltage - Output (Min/Fixed):
- 1.2V
- Voltage - Output (Max):
- 100V
- Current - Output:
- 2.5A
- Frequency - Switching:
- Up to 1MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO PowerPad
LM5012QDDARQ1 FAQ
1.How can I place an order for LM5012QDDARQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM5012QDDARQ1 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 LM5012QDDARQ1 reliable?
The price and inventory of LM5012QDDARQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM5012QDDARQ1 is usually 5 days.
3.What payment methods are accepted for LM5012QDDARQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM5012QDDARQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM5012QDDARQ1?
LM5012QDDARQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM5012QDDARQ1 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 LM5012QDDARQ1?
For technical support, including LM5012QDDARQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM5012QDDARQ1 requirements.
6.How does Aetrix verify that LM5012QDDARQ1 is sourced from the original manufacturer or authorized distributors?
All LM5012QDDARQ1 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 LM5012QDDARQ1 meets industry standards.
7.What is the process for return or replacement of LM5012QDDARQ1?
All LM5012QDDARQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LM5012QDDARQ1, 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 LM5012QDDARQ1 part is unused and in its original packaging.
Return procedure for LM5012QDDARQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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