TL4051BIDBZTG4 Texas Instruments Integrated Circuit (SOT23 (3-Pin)) In Stock
Texas Instruments TL4051BIDBZTG4 is a two-terminal precision shunt voltage reference in a SOT-23 3-pin package with output adjustable from 1.225 V to 10 V and a tight initial accuracy of approximately 1.21 V. It targets ADC references, power supply trimming, and precision analog measurement circuits.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- TL4051BIDBZTG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Two-terminal shunt voltage reference with adjustable output from 1.225 V to 10 V
- Tight initial accuracy with output voltage between 1.209 V and 1.2144 V
- Compact SOT-23 3-pin package for minimal PCB footprint
- Single-function design simplifies precision analog circuit layout
- RoHS-compliant with e4 JEDEC marking for lead-free soldering
Applications
The TL4051BIDBZTG4 is used as a precision voltage reference in ADC and DAC bias circuits, battery management systems, and portable instrumentation where a stable 1.225 V to 10 V reference is needed in minimal board space. Its two-terminal shunt architecture also suits power supply regulation trimming and threshold detection in industrial sensor conditioning boards.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | OUTPUT VOLTAGE ADJUSTABLE FROM 1.225V TO 10V |
| 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 Voltage-Max | 1.2144V |
| Output Voltage-Min | 1.209V |
| Output Voltage-Nom | 1.212V |
| 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 |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temp Coef of Voltage-Max | 50ppm/°C |
| Temperature Grade | INDUSTRIAL |
| 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 |
| Voltage Tolerance-Max | 0.2% |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TL4051BIDBZTG4:
Voltage Reference, 1 Output, 1.225V, Trim/Adjustable, BIPolar, PDSO3
Frequently Asked Questions
Over what output voltage range can the TL4051BIDBZTG4 be adjusted?
The TL4051BIDBZTG4 supports an adjustable output voltage from 1.225 V up to 10 V using external resistors. This range makes it versatile for setting ADC reference levels, trimming regulator outputs, and establishing precise threshold voltages across a wide variety of analog circuit designs without requiring multiple reference ICs.
How accurate is the TL4051BIDBZTG4 reference voltage, and why does that matter for ADC applications?
The TL4051BIDBZTG4 has an initial output voltage tightly constrained between 1.209 V and 1.2144 V, yielding a tolerance of roughly ±0.5 mV around the 1.21 V nominal. For a 12-bit ADC operating at 3.3 V full scale, this level of accuracy prevents reference-induced offset errors from masking the LSB resolution of approximately 0.8 mV.
Which package does the TL4051BIDBZTG4 use and how does it fit into compact PCB designs?
The TL4051BIDBZTG4 is housed in a SOT-23 3-pin package, one of the smallest standard surface-mount outlines available. With only 3 pins and a body measuring approximately 3 mm x 1.75 mm, it occupies minimal board area, making it ideal for battery-powered handheld instruments, wearables, and IoT sensor nodes where every square millimeter counts.
Is the TL4051BIDBZTG4 suitable as a replacement for TL431-based references in tight-tolerance designs?
The TL4051BIDBZTG4 offers a tighter initial accuracy (1.209 V to 1.2144 V) compared to standard TL431 parts with 2% tolerance, making it preferable when ADC reference error budgets are below 1%. Both are two-terminal shunt references in SOT-23 packages, so the TL4051BIDBZTG4 can serve as a drop-in upgrade where tighter voltage reference accuracy is required at the same PCB footprint.
Related Guides
How to Choose 150141BS73100 for Wurth 3528 SMT LED Indicator Designs
Selection guide for 150141BS73100 and Wurth 3528 SMT LED variants covering color, drive current, package fit, optics, and sourcing.
Jul 9, 2026
How to Choose EEEFT1V101AP for SMD Aluminum Electrolytic Capacitor Designs
Selection guide for EEEFT1V101AP and related Panasonic EEE-FT SMD aluminum electrolytic capacitors covering voltage, ESR, lifetime, and sourcing.
Jul 9, 2026
How to Choose a Panasonic FT SMD Aluminum Electrolytic Capacitor for 35 V Control Rails
Selection guide for EEEFT1V101AP and related Panasonic FT/FK SMD aluminum electrolytic capacitors on 35 V and lower control rails.
Jul 8, 2026
EEEFK1E470P Design Guide for 24 V Control-Board Hold-Up
Design EEEFK1E470P into 12 V and 24 V control boards with correct voltage derating, ripple checks, layout, and sourcing alternatives.
Jul 8, 2026
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.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”