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.
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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.
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