The Texas Instruments LMR38020SDDAR is a high-performance 4.2V to 80V, 2A synchronous step-down DC/DC converter designed for demanding industrial power management applications. Featuring integrated synchronous MOSFETs, ultra-low 40µA quiescent current, adjustable switching frequency, and robust protection functions, the LMR38020SDDAR provides efficient and reliable power conversion for demanding industrial environments.
The parts supports a wide input voltage range up to 80V, delivering up to 2A continuous output current while minimizing external component requirements through integrated compensation and advanced control features.
The Texas Instruments LMR38020SDDAR is currently In Stock and ready for immediate shipping at Perceptive Components. With available inventory of 3k pcs (Date Code: 26+), we ensure reliable supply continuity, 100% authenticity, and rapid global delivery for customers worldwide.As a trusted independent electronic components distributor, Perceptive Components helps global procurement teams secure critical power management ICs with verified quality and flexible sourcing solutions.

Part Number: LMR38020SDDAR
Manufacturer: Texas Instruments
Stock: 3k pcs
Date Code: 26+
Package: 8-HSOIC PowerPAD (4.89 × 3.90 mm)
Key Technical Specifications of TI LMR38020SDDAR
| Parameter | Specification |
| Product Type | Synchronous Step-Down DC/DC Converter |
| Input Voltage Range | 4.2V to 80V |
| Output Current | 2A Continuous |
| Switching Frequency | 200kHz to 2.2MHz Adjustable |
| Quiescent Current | 40µA Ultra-Low IQ |
| Control Mode | Fixed-Frequency Peak Current Mode Control |
| Rectification | Integrated Synchronous Rectification |
| Protection Features | Thermal Shutdown, Cycle-by-Cycle Current Limit, Hiccup Mode Short-Circuit Protection |
| Enable Function | Precision Enable Input |
| Spread Spectrum | Supported for Reduced EMI |
| Duty Cycle | Up to 97% Maximum |
| Package | HSOIC-8 with PowerPAD |
| Package Size | 4.89mm × 3.90mm |
| Moisture Sensitivity Level (MSL) | MSL 3 |
| Packaging | Tape & Reel |
| RoHS Status | RoHS Compliant |
| REACH Status | REACH Compliant |
Applications of LMR38020SDDAR
The LMR38020SDDAR is optimized for industrial and transportation-related power conversion systems requiring high reliability, wide input voltage capability, and efficient power delivery. Typical applications include:
Industrial Transportation Systems:The wide 4.2V–80V input range makes the device suitable for transportation equipment and systems exposed to voltage fluctuations.
Factory Automation & Industrial Control:With integrated protection functions and robust power handling capability, the LMR38020SDDAR supports stable operation in industrial automation equipment, control systems, and embedded power platforms.
Wireless Infrastructure & Networking Equipment:The converter provides efficient DC/DC regulation for communication infrastructure requiring compact and reliable power solutions.
Power Delivery Systems:Its high-voltage input capability and synchronous buck architecture make it suitable for distributed power systems and embedded power conversion designs.
Package Information of TI LMR38020SDDAR
The LMR38020SDDAR uses an 8-pin HSOIC PowerPAD package, designed to improve thermal performance and support compact PCB layouts. The package dimensions are approximately 4.89mm × 3.90mm.

LMR38020 Series
| LMR38020FDDAR | LMR38020FDDAR.A | LMR38020FSDDAR |
| LMR38020FSDDAR.A | LMR38020SDDAR | LMR38020SDDAR.A |
Why Source LMR38020SDDAR from Perceptive Components?
Inventory Stability:Perceptive Components maintains extensive inventory for both active-market components and difficult-to-source parts. The available 3K pcs of LMR38020SDDAR (Date Code 26+) provides customers with immediate supply access and reduced procurement risks.
Quality Assurance:Every component undergoes strict inspection and verification procedures to ensure product authenticity, packaging consistency, and reliable performance.
Global Logistics:With established supply channels and international shipping experience, Perceptive Components provides fast and reliable delivery solutions for customers worldwide.
Competitive Pricing:Through direct sourcing channels and strong supplier relationships, Perceptive Components delivers competitive pricing solutions for Texas Instruments power management components.
Alternatives for LMR38020SDDAR
For customers looking for compatible solutions, the following LMR38020 series parts may be considered depending on design requirements:
LMR38020FDDAR:Similar LMR38020 synchronous buck converter featuring 2A output current with forced PWM operation for applications requiring constant switching frequency and reduced output ripple.
LMR38020FSDDAR: Related LMR38020 variant supporting forced PWM mode and spread spectrum technology, suitable for designs requiring improved EMI performance and stable power conversion.
If you are facing lead time issues, contact Perceptive Components for recommended alternative solutions based on your application requirements.
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Download Full Technical LMR38020SDDAR Datasheet (PDF)
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