TL431AQDBVRG4 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
The TL431AQDBVRG4 is a precision adjustable shunt voltage regulator from Texas Instruments, with output adjustable from 2.495V to 36V, 100 mA sink current capability, 5-pin SOT-23 package, and high accuracy for power supply feedback. Available in stock worldwide.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- TL431AQDBVRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Adjustable output voltage from 2.495V to 36V via external resistors
- 100 mA maximum cathode current for feedback and regulation use
- Precision internal 2.495V reference voltage
- Compact 5-pin SOT-23 package for space-constrained designs
- RoHS compliant and lead-free construction
- Low output impedance for stable feedback in SMPS designs
Applications
The TL431AQDBVRG4 is widely used as a precision voltage reference and error amplifier in switching power supplies (SMPS), linear regulators, and battery management circuits. It is also commonly applied in over-voltage protection circuits, LED drivers, and precision analog bias generation in industrial and consumer electronics.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | OUTPUT VOLTAGE ADJUSTABLE FROM 2.495V TO 36V |
| Analog IC - Other Type | TWO TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | R-PDSO-G5 |
| 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 | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temp Coef of Voltage-Max | 82.589ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trim/Adjustable Output | YES |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TL431AQDBVRG4:
Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, BIPolar, PDSO5
Two Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, BIPolar, PDSO5
Frequently Asked Questions
What output voltage range does the TL431AQDBVRG4 support?
The TL431AQDBVRG4 is adjustable from its internal reference voltage of 2.495V up to 36V, set by two external resistors connected in a voltage divider configuration at the reference pin.
How is the TL431AQDBVRG4 used in switching power supplies?
In SMPS applications, the TL431AQDBVRG4 serves as an error amplifier in the feedback loop. It compares the output voltage against its internal 2.495V reference and drives an optocoupler to regulate the output voltage with high precision.
What is the maximum current the TL431AQDBVRG4 can sink?
The TL431AQDBVRG4 can sink a maximum cathode current of 100 mA, which is sufficient for driving feedback networks and optocouplers in most power supply designs.
What package is the TL431AQDBVRG4 available in?
The TL431AQDBVRG4 comes in a 5-pin SOT-23 package, which is a very compact surface-mount package suitable for modern high-density PCB designs in portable and consumer electronics.
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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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