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Texas Instruments LM5164DDAR
- Part No.:
- LM5164DDAR
- Manufacturer:
- Texas Instruments
- Package:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM5164DDAR.pdf
- Description:
- IC REG BUCK ADJ 1A 8SOPWR
- Quantity:
- Payment:
- Shipping:
Inventory:2,458
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Product details
Overview
LM5164DDAR from Texas Instruments is a high-efficiency synchronous step-down DC/DC converter designed for industrial, communication, and embedded power-management applications. It provides regulated output voltage, integrates overcurrent and thermal protection, and supports enable/disable control to deliver compact, reliable, and efficient power conversion.
Part of the LM5164 family, LM5164DDAR features integrated high-side and low-side MOSFETs, high switching frequency, and robust control loops, suitable for compact PCB layouts. For engineers referencing the LM5164DDAR datasheet, LM5164DDAR pinout, LM5164DDAR application, or LM5164DDAR equivalent, this IC is widely used in industrial automation modules, embedded controllers, communication systems, point-of-load regulation, and distributed power systems.
Technical Context
In embedded systems, LM5164DDAR acts as a primary step-down regulator delivering regulated voltage to microcontrollers, FPGAs, sensors, and peripheral devices. Integrated control loops and synchronous MOSFET drivers ensure fast transient response, precise voltage regulation, and high efficiency.
The device reduces external component count, minimizes PCB footprint, and simplifies layout. It is suitable for industrial automation, communication hardware, embedded controllers, and advanced instrumentation systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V – 60 V, supporting versatile industrial and embedded inputs. |
| Output Voltage | Adjustable 0.8 V – 24 V, providing precise point-of-load regulation. |
| Output Current | Up to 1 A, suitable for embedded and industrial peripheral power delivery. |
| Switching Frequency | 500 kHz fixed frequency, optimizing transient response and efficiency in compact layouts. |
| Integrated MOSFETs | High-side and low-side MOSFETs reduce external component count and PCB complexity. |
| Protection Features | Overcurrent, thermal shutdown, and enable/disable input improve system reliability. |
| Package | DDPAK/TO-263 package for easy PCB integration and thermal management. |
Pinout & Package
The LM5164DDAR pinout is optimized for step-down PCB layouts and includes VIN, SW, VOUT, GND, EN, and FB pins.
PCB layout considerations include minimizing trace lengths, proper decoupling, thermal vias, and low-inductance routing to ensure stable and efficient operation.
| Pin / Function | PCB Design and Circuit Role |
|---|---|
| VIN | Power input supporting converter supply range. |
| SW | Switching node driving integrated MOSFETs. |
| VOUT | Regulated output voltage supplied to load. |
| GND | Ground reference for stable operation. |
| EN | Enable input controlling converter operation. |
| FB | Feedback input ensuring voltage regulation and loop stability. |
Key Features
- Wide input voltage range supports industrial and embedded applications.
- Adjustable output voltage allows flexible point-of-load regulation.
- High-efficiency synchronous step-down conversion reduces thermal load.
- Integrated MOSFETs minimize external components and PCB space.
- Protection features improve system reliability.
- Compact DDPAK/TO-263 package facilitates PCB integration and thermal dissipation.
Applications
| Industrial Automation | Embedded Controllers |
|---|---|
|
Use Scenario: Industrial modules, PLCs, and control systems. IC Role: Supplies regulated step-down voltage to processors and peripherals. Use Value: Ensures stable operation and protection. |
Use Scenario: Microcontroller-based embedded systems and instrumentation. IC Role: Provides low-noise regulated power to digital electronics. Use Value: Enables reliable embedded performance and energy efficiency. |
| Communication Equipment | Point-of-Load Regulation |
|
Use Scenario: Routers, network switches, and communication hardware. IC Role: Supplies stable voltage for high-speed components. Use Value: Improves signal integrity and system reliability. |
Use Scenario: Distributed power systems and multi-rail platforms. IC Role: Provides regulated voltage to sensitive loads. Use Value: Ensures precise power delivery and efficiency. |
Equivalent & Alternatives
For LM5164DDAR equivalents, compare input voltage range, output current, efficiency, package type, and protection features.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5018 | Wider input voltage range and slightly different switching frequency. | Used in industrial and embedded power applications. | Choose LM5164DDAR for integrated MOSFETs and compact high-efficiency design. |
| LM2937 | Linear regulator with fixed voltage outputs, lower efficiency. | Used in low-power embedded and industrial systems. | Choose LM5164DDAR for higher efficiency and integrated step-down conversion. |
Compared with LM5018, LM5164DDAR is optimized for compact high-efficiency synchronous DC/DC conversion. LM5164DDAR vs LM2937 selection depends on efficiency requirements, PCB footprint, and integrated MOSFET preference.
Quality
LM5164DDAR should be sourced as original Texas Instruments components through traceable and controlled channels. Quality verification includes package inspection, marking validation, solderability, functional testing, and electrical characterization for industrial applications.
Availability
LM5164DDAR available at Aetrix Electronics and is suitable for industrial and embedded power platforms requiring stable supply and repeatable production support.
Manufacturer
Texas Instruments is a leading semiconductor manufacturer specializing in analog, mixed-signal, and embedded processing solutions for industrial, automotive, communication, and consumer applications.
FAQ
What is LM5164DDAR used for?
LM5164DDAR is used for industrial automation modules, embedded controllers, communication equipment, point-of-load regulation, and distributed power platforms.
Where can I find the LM5164DDAR datasheet download?
The LM5164DDAR datasheet download is available from Texas Instruments. It includes electrical specifications, switching characteristics, protection features, package information, and PCB layout guidance.
What should be considered in LM5164DDAR pinout design?
LM5164DDAR pinout design should prioritize stable power delivery, low-inductance layout, proper decoupling, thermal management, and minimized switching-node noise.
Does LM5164DDAR integrate MOSFETs?
Yes. LM5164DDAR integrates high-side and low-side MOSFETs for compact step-down DC/DC conversion.
What are common LM5164DDAR equivalent solutions?
Common LM5164DDAR equivalent alternatives include LM5018 and LM2937 depending on efficiency, input voltage range, and embedded power architecture requirements.
LM5164DDAR 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:
- 1A
- Frequency - Switching:
- Up to 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO PowerPad
LM5164DDAR FAQ
1.How can I place an order for LM5164DDAR through Aetrix?
Please submit a Request for Quotation (RFQ) for LM5164DDAR 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 LM5164DDAR reliable?
The price and inventory of LM5164DDAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM5164DDAR is usually 5 days.
3.What payment methods are accepted for LM5164DDAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM5164DDAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM5164DDAR?
LM5164DDAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM5164DDAR 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 LM5164DDAR?
For technical support, including LM5164DDAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM5164DDAR requirements.
6.How does Aetrix verify that LM5164DDAR is sourced from the original manufacturer or authorized distributors?
All LM5164DDAR 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 LM5164DDAR meets industry standards.
7.What is the process for return or replacement of LM5164DDAR?
All LM5164DDAR units undergo pre-shipment inspection (PSI). If there is an issue with LM5164DDAR, 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 LM5164DDAR part is unused and in its original packaging.
Return procedure for LM5164DDAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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