Texas Instruments · supervisor / reference IC
LM431
Texas Instruments supervisor / reference IC
Part-number family from National Semiconductor (now Texas Instruments, 2011). Older stock may carry National Semiconductor markings.
Request a quote for LM431LM431 is a supervisor / reference IC product family from Texas Instruments; it is supplied under several orderable part numbers that differ in package, temperature grade and packing. It is listed in our Supervisors & Voltage References catalog (Power Management).
PartnerSemi sources the LM431 for production, repair and maintenance buyers worldwide. Send the quantity you need and, optionally, a target price; we reply with price, lead time and available date codes, usually within one business day.
Specifications
| Manufacturer part number | LM431 |
|---|---|
| Manufacturer | Texas Instruments |
| Heritage brand (part family) | National Semiconductor |
| Product type | supervisor / reference IC |
| Category | Supervisors & Voltage References |
| Part number type | Base / family part number |
Specifications are indicative and taken from public catalog data; always verify against the manufacturer's datasheet.
More Texas Instruments Supervisors & Voltage References
| Part number | Type | |
|---|---|---|
| LM4140 | supervisor / reference IC | |
| LM4140ACM-1.0/NOPB | Voltage Reference | |
| LM4140CCM-4.1/NOPB | Voltage Reference | |
| LM4140CCMX-2.5/NOPB | Voltage Reference | |
| LM431ACM3X/NOPB | Voltage Reference | |
| LM431AIM3/NOPB | Voltage Reference | |
| LM431BIM3X/NOPB | Voltage Reference | |
| LM431CCM3X/NOPB | Voltage Reference |
Similar part numbers from other manufacturers
Similar numbering only — not a confirmed equivalent. Ask us to check compatibility.
| Part number | Manufacturer | Type | |
|---|---|---|---|
| LM431ACZ | onsemi | Voltage Reference | |
| LM431AIZ | onsemi | Voltage Reference | |
| LM431CCZ | onsemi | Voltage Reference | |
| LM431ACZX | onsemi | Voltage Reference | |
| LM431AM/TR | HGSEMI | Voltage Reference | |
| LM431BCZX | onsemi | Voltage Reference | |
| LM431BIZX | onsemi | Voltage Reference | |
| LM431CCMX | onsemi | Voltage Reference |
Frequently asked questions
What is the LM431?
LM431 is a supervisor / reference IC product family from Texas Instruments; it is supplied under several orderable part numbers that differ in package, temperature grade and packing. It is listed in our Supervisors & Voltage References catalog (Power Management).
Which part numbers are similar to the LM431?
Similar part numbers in our catalog include LM431ACZ (onsemi), LM431AIZ (onsemi), LM431CCZ (onsemi), LM431ACZX (onsemi), LM431AM/TR (HGSEMI) and LM431BCZX (onsemi). Similar numbering does not guarantee compatibility; check the datasheets or ask us to confirm.
How can I buy the LM431?
Request a quote from PartnerSemi at https://www.partnersemi.com/rfq/?mpn=LM431&brand=Texas%20Instruments or email info@partnersemi.com with the part number and quantity. Price, availability and lead time are confirmed per request; we ship worldwide from the Netherlands.