LM317MQDCYRBO Texas Instruments Integrated Circuit (SOT223 (3-Pin)) In Stock
The LM317MQDCYRBO is a three-terminal adjustable positive linear voltage regulator delivering 500 mA output current over a 1.25V to 37V adjustable range. It offers excellent line and load regulation with built-in thermal overload and short-circuit protection in a SOT-223 package. AEC-Q100 qualified for automotive use, available with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT223 (3-Pin)
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- LM317MQDCYRBO Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM317MQDCYRBO?
- Adjustable output voltage from 1.25V to 37V with only two external resistors, providing a versatile single-IC regulated power supply for a wide range of loads
- 500 mA continuous output current capability with internal thermal shutdown and short-circuit current limiting, enhancing system reliability without external protection components
- AEC-Q100 automotive-grade qualification (LM317MQ series) ensuring reliable operation in harsh-environment automotive and industrial power supply applications
- SOT-223 surface-mount package with exposed thermal pad enables efficient heat dissipation while minimizing PCB area in compact power converter designs
What is LM317MQDCYRBO used for?
The LM317MQDCYRBO is used in automotive ECU power supply rails, on-board chargers, and infotainment systems requiring a stable adjustable regulated voltage derived from a higher input supply. It also finds applications in laboratory bench power supplies, industrial sensor conditioning circuits, and LED driver modules where a precise, current-limited voltage source is needed. Its wide adjustment range and built-in protection make it a reliable choice for general-purpose linear regulation in both commercial and automotive-grade designs.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the LM317MQDCYRBO datasheet?
LM317MQDCYRBO Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM317MQDCYRBO?
Compatible alternatives and drop-in replacements for LM317MQDCYRBO:
Adjustable Positive Standard Regulator, 1.25V Min, 37V Max, BIPolar, PDSO4
Adjustable Positive Standard Regulator, 1.25V Min, 37V Max, BIPolar, PDSO4
Frequently Asked Questions
What is the output voltage range of the LM317MQDCYRBO?
The LM317MQDCYRBO provides an adjustable output voltage from 1.25V to 37V, set by two external resistors connected between the output and adjust terminal, enabling flexible power supply design for a wide variety of electronic systems.
What is the maximum output current of the LM317MQDCYRBO?
The LM317MQDCYRBO is rated for a maximum continuous output current of 500 mA, making it suitable for powering microcontrollers, sensors, op-amps, and other moderate-current loads in embedded and automotive systems.
Is the LM317MQDCYRBO suitable for automotive applications?
Yes, the LM317MQDCYRBO carries AEC-Q100 automotive qualification for the LM317MQ series, meeting stringent reliability and quality requirements for automotive electronic control units, infotainment systems, and under-hood power supply modules.
What protection features does the LM317MQDCYRBO include?
The LM317MQDCYRBO integrates internal thermal overload protection and short-circuit current limiting, automatically reducing output current or shutting down when junction temperature or output conditions exceed safe limits, protecting both the device and connected loads.
What package does the LM317MQDCYRBO use?
The LM317MQDCYRBO is housed in a SOT-223 (3-pin) surface-mount package featuring an exposed thermal tab for improved heat dissipation, providing a compact footprint with better thermal performance than standard SOT-23 packages for higher-power regulation tasks.
Related Guides
STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply
Choose the right STM32H725 variant by comparing Flash, package, pin count, temperature grade, connectivity, and production requirements.
Aug 1, 2026
STM32H725IGT3 High-Performance MCU Design Guide
Design STM32H725IGT3 systems for reliable 550 MHz operation with practical power, clock, cache, DMA, PCB, ADC, and recovery guidance.
Jul 31, 2026
150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing
Select the 150141VS73100 by wavelength, brightness, drive current, 3528 fit, reliability, and traceable sourcing requirements.
Jul 31, 2026
STEF05SGR 5 V eFuse Protection Design Guide
Design a reliable 5 V STEF05SGR eFuse stage with current-limit math, capacitor sizing, thermal analysis, fault recovery, and PCB layout guidance.
Jul 30, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit