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 |
|---|
* Stock values are subject to change
** 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
** 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
- Programmable output voltage up to 36 V
- Three different reference voltage tolerances:
- Standard grade: 2 %
- A-Grade: 1 %
- B-Grade: 0.5 %
- Typical temperature drift: 9 mV (in a range of 0 °C up to 70 °C)
- Low output noise
- Typical output impedance: 0.2 Ω
- Sink current capability: 1 mA to 100 mA
- AEC-Q100 qualified (grade 1)
Applications
- Shunt regulator
- Precision current limiter
- Precision constant current sink
- Isolated feedback loop for Switch Mode Power Supply (SMPS)
Parametrics
| Type number | Package version | Package name | Size (mm) | Pinning configuration | Tamb | 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 |
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 | WAVE_BG-BD-1 | Reel 7" Q3/T4 |
Quality, reliability & chemical content
| Type number | Orderable part number | Chemical content | RoHS / RHF | MSL | MSL leadfree |
|---|---|---|---|---|---|
| TL431BFDT | TL431BFDT,215 | TL431BFDT |   | 1 | 1 |
Documentation (6)
| 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 | 2021-03-19 |
| TL431BFDT_Nexperia_Product_Quality | TL431BFDT Nexperia Product Quality | Quality document | 2019-05-20 |
| TL431 | TL431 SPICE model | SPICE model | 2020-10-26 |
| 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 |
Ordering, pricing & availability
| Type number | Orderable part number | Ordering code (12NC) | Packing | Buy online |
|---|---|---|---|---|
| TL431BFDT | TL431BFDT,215 | 935293276215 | Reel 7" Q3/T4 | 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.