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Texas Instruments LMR38020SDDAR Datasheet

Published Time: 2026-08-04 14:12:36
Find genuine Texas Instruments LMR38020SDDAR DC/DC converters at Perceptive Components, offering in-stock availability, verified quality, and reliable global supply solutions.

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.

TI LMR38020SDDAR




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 TypeSynchronous Step-Down DC/DC Converter
Input Voltage Range4.2V to 80V
Output Current2A Continuous
Switching Frequency200kHz to 2.2MHz Adjustable
Quiescent Current40µA Ultra-Low IQ
Control ModeFixed-Frequency Peak Current Mode Control
RectificationIntegrated Synchronous Rectification
Protection FeaturesThermal Shutdown, Cycle-by-Cycle Current Limit, Hiccup Mode Short-Circuit Protection
Enable FunctionPrecision Enable Input
Spread SpectrumSupported for Reduced EMI
Duty CycleUp to 97% Maximum
PackageHSOIC-8 with PowerPAD
Package Size4.89mm × 3.90mm
Moisture Sensitivity Level (MSL)MSL 3
PackagingTape & Reel
RoHS StatusRoHS Compliant
REACH StatusREACH 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.

Package of  TI LMR38020SDDAR perceptive


LMR38020 Series

LMR38020FDDARLMR38020FDDAR.ALMR38020FSDDAR
LMR38020FSDDAR.ALMR38020SDDARLMR38020SDDAR.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.


Secure Your Supply Chain Today

Don't let component shortages impact your production schedule. At Perceptive Components, our sourcing specialists are ready to support your LMR38020SDDAR requirements with reliable supply solutions, competitive pricing, and global delivery capabilities.



Perceptive Components is a leading global distributor specializing in TI, NXP, Microchip, and ST components. We excel in sourcing ready-to-ship spot stock for both new designs and EOL/scarce materials. Every part undergoes our rigorous professional QC protocol (X-Ray, Decapsulation, and Electrical Testing) to ensure 100% authenticity and traceability. From Aerospace to Automotive, we provide reliable supply chain solutions with rapid global delivery.

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