Adjustable precision shunt regulator
Buy from Nexperia
| SKU | Stock* | MOQ | Price per unit** | Quantity |
|---|
Buy from distributors
| Seller | SKU | Stock | MOQ | 1 | 10 | 100 | 1,000 | 10,000 | Purchase |
|---|
| Seller | SKU | Stock | MOQ | 1 | 10 | 100 | 1,000 | 10,000 | Purchase |
|---|
| Seller | SKU | Stock | MOQ | 1 | 10 | 100 | 1,000 | 10,000 | Purchase |
|---|
| Seller | SKU | Stock | MOQ | 1 | 10 | 100 | 1,000 | 10,000 | Purchase |
|---|
| Seller | SKU | Stock | MOQ | 1 | 10 | 100 | 1,000 | 10,000 | Purchase |
|---|
** Displayed price per unit is based on small quantity orders
*** Authorized resellers for overstock, mature, and discontinued products which are warranted for reliability by the reseller, no longer by Nexperia
Features and benefits
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Programmable output voltage up to 36 V
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Three different reference voltage tolerances:
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Standard grade: 2 %
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A-Grade: 1 %
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B-Grade: 0.5 %
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Typical temperature drift: 9 mV (in a range of 0 °C up to 70 °C)
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Low output noise
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Typical output impedance: 0.2 Ω
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Sink current capability: 1 mA to 100 mA
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AEC-Q100 qualified (grade 1)
Applications
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Shunt regulator
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Precision current limiter
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Precision constant current sink
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Isolated feedback loop for Switch Mode Power Supply (SMPS)
Parametrics
| Type number | Package version | Package name | Size (mm) | Pinning configuration | Tamb (°C) | Vref tolerance (%) | Vref (V) | VKA (V) | IK (mA) |
|---|---|---|---|---|---|---|---|---|---|
| TL431BFDT | SOT23 | SOT23 | 2.9 x 1.3 x 1 | normal | -40~125 | 0.5 | 2.495 | 36 | 100 |
PCB Symbol, Footprint and 3D Model
| Model Name | Description |
|---|---|
Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| TL431BFDT | TL431BFDT,215 ( 9352 932 76215 ) | Active | AT% |  (SOT23) | SOT23 | REFLOW_BG-BD-1 WAVE_BG-BD-1 | SOT23_215 |
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| TL431BFDT | TL431BFDT,215 | TL431BFDT |  |   |
Documentation (8)
| File name | Title | Type | Date |
|---|---|---|---|
| TL431_FAM | Adjustable precision shunt regulator | Data sheet | 2019-01-14 |
| AN11119 | Medium power small-signal MOSFETs in DC-to-DC conversion | Application note | 2013-05-07 |
| TL431BFDT_Nexperia_Product_Reliability | TL431BFDT Nexperia Product Reliability | Quality document | 2023-04-04 |
| TL431BFDT_Nexperia_Product_Quality | TL431BFDT Nexperia Product Quality | Quality document | 2019-05-20 |
| TL431 | TL431 SPICE model | SPICE model | 2020-10-26 |
| SOT23_215 | Reel pack for SMD, 7"; Q3/T4 product orientation | Packing information | 2020-04-29 |
| REFLOW_BG-BD-1 | Reflow soldering profile | Reflow soldering | 2021-04-06 |
| WAVE_BG-BD-1 | Wave soldering profile | Wave soldering | 2021-09-08 |
Support
If you are in need of design/technical support, let us know and fill in the answer form, we'll get back to you shortly.
Models
| File name | Title | Type | Date |
|---|---|---|---|
| TL431 | TL431 SPICE model | SPICE model | 2020-10-26 |
PCB Symbol, Footprint and 3D Model
| Model Name | Description |
|---|---|
Ordering, pricing & availability
| Type number | Orderable part number | Ordering code (12NC) | Packing | Packing quantity | Buy online |
|---|---|---|---|---|---|
| TL431BFDT | TL431BFDT,215 | 935293276215 | SOT23_215 | - | Order product |
Sample
As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.
Sample orders normally take 2-4 days for delivery.
If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples.
How does it work?
The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.