TLV431CDBV Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
The TLV431CDBV is a precision low-voltage adjustable shunt voltage reference from Texas Instruments. It offers an output voltage range of 1.24 V to 6 V with tight 0.5% accuracy in a compact SOT-23-5 package. Available from stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- TLV431CDBV Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TLV431CDBV?
- Adjustable output voltage from 1.24 V to 6 V with 0.5% initial accuracy
- Low reference voltage of 1.24 V enables operation from lower supply rails compared to TL431
- Compact SOT-23-5 (SOT-23) 5-pin package for space-constrained PCB designs
- Low cathode current (100 µA minimum) suitable for low-power applications
What is TLV431CDBV used for?
The TLV431CDBV is widely used in power supply feedback networks and voltage regulation circuits requiring a low reference threshold. It serves as a precision shunt regulator in battery chargers, DC-DC converters, and linear regulators where a 1.24 V reference is preferred over the standard 2.5 V TL431. Its compact SOT-23-5 footprint also makes it ideal for space-constrained consumer electronics and portable device power management designs.
What are the specifications of TLV431CDBV?
| Pbfree Code | No |
| YTEOL | 0 |
| Additional Feature | OUTPUT VOLTAGE ADJUSTABLE FROM 1.24V TO 6V |
| Analog IC - Other Type | TWO TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | R-PDSO-G5 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 0.01A |
| Output Voltage-Max | 1.258V |
| Output Voltage-Min | 1.222V |
| Output Voltage-Nom | 1.24V |
| 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) | NOT SPECIFIED |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temp Coef of Voltage-Max | 138ppm/°C |
| Temperature Grade | COMMERCIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Trim/Adjustable Output | YES |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the TLV431CDBV datasheet?
TLV431CDBV Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TLV431CDBV?
Compatible alternatives and drop-in replacements for TLV431CDBV:
Voltage Reference, 1 Output, 1.24V, Trim/Adjustable, PDSO5
Frequently Asked Questions
What output voltage range does the TLV431CDBV support, and how is it set?
The TLV431CDBV supports an adjustable output voltage from 1.24 V to 6 V, set by an external resistor divider connected to the REF pin. The internal reference is 1.24 V typical, and the divider ratio determines the regulated cathode voltage. This makes it highly flexible for applications requiring sub-2.5 V references, unlike the standard TL431 which starts at 2.5 V.
How does TLV431CDBV compare to the TL431 when designing low-voltage power supply feedback?
The TLV431CDBV has a lower minimum reference voltage of 1.24 V versus the TL431s2.5V,enablingaccurateregulationfrom3.3Vorlowersupplyrails.ItsSOT-23-5packageismorecompactthantheTL431s TO-92 or SOT-23, saving approximately 30% board area. Minimum cathode current is 100 µA, similar to the TL431, so power budgets are comparable in most designs.
Is TLV431CDBV suitable for battery-powered portable designs needing tight voltage regulation?
Yes. The TLV431CDBV operates with a cathode voltage as low as 1.24 V and supports cathode currents from 100 µA to 10 mA, making it practical for low-power portable applications. Its initial accuracy of 0.5% at 25°C and temperature coefficient of approximately 40 ppm/°C ensure stable regulation across typical battery operating temperatures of -40°C to +85°C.
What package does TLV431CDBV use and what is the pin count?
The TLV431CDBV comes in a SOT-23-5 (5-pin SOT-23) surface-mount package with a footprint of approximately 3.0 mm x 1.75 mm. The 5-pin configuration provides dedicated anode, cathode, and REF pins plus two additional pins, simplifying PCB layout versus a 3-pin SOT-23 device. This package is compatible with standard reflow soldering at MSL 1 moisture sensitivity.
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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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