ATL431BQDBZRG4 Texas Instruments Integrated Circuit (SOT23 (3-Pin)) In Stock
The ATL431BQDBZRG4 is a precision adjustable shunt voltage regulator from Texas Instruments, offering a programmable output voltage from 2.5V to 36V in a compact 3-pin SOT-23 package. It provides stable voltage regulation with low reference tolerance for a wide range of power supply feedback and reference applications. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- ATL431BQDBZRG4 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ATL431BQDBZRG4?
- Adjustable output voltage from 2.5V to 36V enabling flexible voltage reference and regulation across diverse circuit designs
- Precision shunt regulator architecture providing stable, accurate voltage clamping for power supply feedback loops
- Ultra-compact 3-pin SOT-23 package ideal for space-constrained designs in portable and embedded systems
- Low reference voltage tolerance ensuring tight accuracy for analog signal conditioning and ADC reference circuits
- Lead-free and RoHS-compliant construction for use in environmentally responsible end products
What is ATL431BQDBZRG4 used for?
The ATL431BQDBZRG4 is widely used as a precision voltage reference and feedback element in switch-mode power supplies, linear regulators, and isolated converter error amplifiers. It is also employed in battery chargers, instrumentation circuits, and precision analog signal chains where a programmable, stable shunt reference between 2.5V and 36V is required.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the ATL431BQDBZRG4 datasheet?
ATL431BQDBZRG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for ATL431BQDBZRG4?
Compatible alternatives and drop-in replacements for ATL431BQDBZRG4:
Frequently Asked Questions
What is the output voltage range of the ATL431BQDBZRG4?
The ATL431BQDBZRG4 offers an adjustable regulated output voltage from 2.5V to 36V, set by an external resistor divider. This flexibility allows it to serve as a precise reference or error amplifier in a wide variety of power supply topologies.
What package does the ATL431BQDBZRG4 use?
The ATL431BQDBZRG4 comes in a 3-pin SOT-23 package, one of the smallest surface-mount packages available. This ultra-compact footprint is ideal for portable electronics, wearable devices, and any PCB design where board space is at a premium.
What are typical applications for the ATL431BQDBZRG4?
Typical applications include feedback voltage reference in flyback and buck converters, precision shunt regulation in battery management circuits, programmable voltage references in instrumentation amplifiers, and error amplification in isolated power supply designs requiring tight output voltage control.
How does the ATL431BQDBZRG4 compare to a standard TL431?
The ATL431BQDBZRG4 is an enhanced variant of the classic TL431 shunt regulator, offering improved reference accuracy and tighter tolerance. Its 3-pin SOT-23 footprint is smaller than the traditional TO-92 or SOIC packages, making it better suited for modern compact PCB layouts.
Related Guides
STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply
Choose the right STM32H725 variant by comparing Flash, package, pin count, temperature grade, connectivity, and production requirements.
Aug 1, 2026
STM32H725IGT3 High-Performance MCU Design Guide
Design STM32H725IGT3 systems for reliable 550 MHz operation with practical power, clock, cache, DMA, PCB, ADC, and recovery guidance.
Jul 31, 2026
150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing
Select the 150141VS73100 by wavelength, brightness, drive current, 3528 fit, reliability, and traceable sourcing requirements.
Jul 31, 2026
STEF05SGR 5 V eFuse Protection Design Guide
Design a reliable 5 V STEF05SGR eFuse stage with current-limit math, capacitor sizing, thermal analysis, fault recovery, and PCB layout guidance.
Jul 30, 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.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit