TLV431BQDCKT Texas Instruments Integrated Circuit (SOT23 (6-Pin)) In Stock
TLV431BQDCKT is a precision adjustable shunt voltage reference from Texas Instruments with output adjustable from 1.24 V to 6 V. It features tight 0.5% initial accuracy, low 55 µA minimum cathode current, and operates in a compact SOT-23 6-pin package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- TLV431BQDCKT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2693(MOQ 10)
- 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 TLV431BQDCKT?
- Adjustable output voltage from 1.24 V to 6 V with 0.5% initial accuracy grade B for tight reference applications
- Low 55 µA minimum cathode current enabling operation in low-power and battery-operated circuit designs
- Compact SOT-23 6-pin package (JESD-30 R-PDSO-G6) ideal for space-constrained power supply and feedback designs
What is TLV431BQDCKT used for?
The TLV431BQDCKT is widely used as an error amplifier or precision voltage reference in switch-mode power supplies, linear regulators, and battery charger feedback loops. Its adjustable 1.24 V to 6 V output range with 0.5% accuracy makes it suitable for precision analog signal conditioning, overvoltage protection circuits, and instrumentation power rails. The small SOT-23 package allows integration into handheld consumer electronics, industrial sensors, and automotive accessory power modules.
What are the specifications of TLV431BQDCKT?
| Pbfree Code | Yes |
| Date Of Intro | 1996-01-01 |
| YTEOL | 15 |
| Additional Feature | OUTPUT VOLTAGE ADJUSTABLE FROM 1.24V TO 6V |
| Analog IC - Other Type | TWO TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Voltage-Max | 1.246V |
| Output Voltage-Min | 1.234V |
| Output Voltage-Nom | 1.24V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temp Coef of Voltage-Max | 138ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trim/Adjustable Output | YES |
| Package | SOT23 (6-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the TLV431BQDCKT datasheet?
TLV431BQDCKT Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TLV431BQDCKT?
Compatible alternatives and drop-in replacements for TLV431BQDCKT:
Two Terminal Voltage Reference, 1 Output, 1.24V, Trim/Adjustable, BIPolar, PDSO3
Frequently Asked Questions
Over what output voltage range can the TLV431BQDCKT be programmed, and how is it set?
The TLV431BQDCKT output voltage is adjustable from 1.24 V (its internal reference voltage) up to 6 V using an external resistor divider connected to the REF pin. The B-grade device offers 0.5% initial reference accuracy, so a 1.24 V set point has a maximum error of only 6.2 mV, making it suitable for precision power supply regulation without trimming.
How does TLV431BQDCKT compare to the standard TL431 in terms of minimum operating current?
The TLV431BQDCKT requires a minimum cathode current of 55 µA, compared to 1 mA for the classic TL431. This roughly 18x reduction in quiescent current makes the TLV431B well-suited for battery-powered and energy-harvesting designs where standby power budgets are measured in tens of microamps, such as IoT sensor nodes and wearable devices.
In what type of power supply feedback circuit is TLV431BQDCKT typically used as a shunt regulator?
The TLV431BQDCKT is commonly used as the optocoupler-driven error amplifier in flyback and buck converter feedback loops. The REF pin monitors the output voltage via a resistor divider, and when the output exceeds the 1.24 V reference threshold, the device sinks current through an LED-coupled optocoupler to reduce the PWM duty cycle, achieving tight output regulation within ±0.5% across load and temperature.
What package does the TLV431BQDCKT use and how does it affect PCB space savings versus through-hole alternatives?
The TLV431BQDCKT is housed in a SOT-23 6-pin surface-mount package (JESD-30 R-PDSO-G6) with a body size of approximately 2.9 mm x 1.6 mm. Compared to a through-hole TO-92 TL431 package, this is roughly 80% smaller in PCB footprint, enabling significantly denser designs in power modules, chargers, and DC-DC converters where board space is at a premium.
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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
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 10+ | $0.9570 | $9.57 |
| 25+ | $0.8664 | $21.66 |
| 100+ | $0.7668 | $76.68 |
| 690+ | $0.2912 | $200.93 |
| 895+ | $0.2803 | $250.87 |
| 1115+ | $0.2693 | $300.27 |
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