TL431AQDBZRQ1 Texas Instruments Integrated Circuit (SOT23 (3-Pin)) In Stock
TL431AQDBZRQ1 is an automotive-grade adjustable precision shunt voltage regulator in a compact SOT-23 package. It features a 2.495V reference voltage, 100mA output current, and AEC-Q100 qualification for reliability in harsh automotive environments. From $0.229, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- TL431AQDBZRQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2290(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TL431AQDBZRQ1?
- AEC-Q100 automotive-qualified for reliable operation in harsh temperature and vibration environments
- Adjustable output voltage from 2.495V to 36V with tight ±0.5% initial accuracy
- 100mA output current capability in ultra-compact SOT-23 (3-pin) package
- Low dynamic impedance of 0.22Ω for stable voltage regulation across load variations
What is TL431AQDBZRQ1 used for?
The TL431AQDBZRQ1 is widely used in automotive power supply circuits, including voltage references for ECUs, body control modules, and ADAS systems. It serves as a precision feedback element in switching regulators and linear power supplies where tight voltage accuracy is critical. Additional applications include battery management systems, instrument cluster power rails, and infotainment unit regulation requiring automotive-grade components.
What are the specifications of TL431AQDBZRQ1?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | TWO TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 0.1A |
| Output Voltage-Max | 2.52V |
| Output Voltage-Min | 2.47V |
| Output Voltage-Nom | 2.495V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TO-236 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Screening Level | AEC-Q100 |
| Supply Voltage-Max (Vsup) | 36V |
| Supply Voltage-Min (Vsup) | 2.495V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temp Coef of Voltage-Max | 92ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trim/Adjustable Output | YES |
| Voltage Tolerance-Max | 0.5% |
| ## TL431AQDBZRQ1 Alternates Showing results | Image |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Mainland China, Philippines, Thailand |
Where can I find the TL431AQDBZRQ1 datasheet?
TL431AQDBZRQ1 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TL431AQDBZRQ1?
Compatible alternatives and drop-in replacements for TL431AQDBZRQ1:
suggested
suggested
Frequently Asked Questions
What is the output voltage range of the TL431AQDBZRQ1?
The TL431AQDBZRQ1 supports an adjustable output voltage range from 2.495V (the internal reference voltage) up to 36V, set by two external resistors. The reference voltage has an initial accuracy of ±0.5%, making it suitable for precision automotive voltage regulation applications.
Is the TL431AQDBZRQ1 AEC-Q100 qualified for automotive use?
Yes, the TL431AQDBZRQ1 is AEC-Q100 qualified and designed for automotive applications. It operates over the extended automotive temperature range and meets the reliability standards required for use in ECUs, body control modules, ADAS, and other safety-critical automotive systems.
What package does the TL431AQDBZRQ1 come in and what is its maximum output current?
The TL431AQDBZRQ1 is housed in a SOT-23 3-pin package, which is ideal for space-constrained PCB designs. It supports a maximum output (cathode) current of 100mA, sufficient for driving feedback networks in switching regulators and linear power supply circuits.
What are common alternatives or substitutes for the TL431AQDBZRQ1?
Common alternatives include the TL431AILT (SOT-23, commercial grade), TLV431 (lower voltage operation down to 1.24V), and LM431 from multiple vendors. For automotive applications requiring AEC-Q100 compliance, ensure any substitute also carries automotive qualification and matches the 2.495V reference voltage and 100mA current rating.
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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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| 250+ | $0.2610 | $65.25 |
| 500+ | $0.2490 | $124.50 |
| 3000+ | $0.2290 | $687.00 |
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