Texas Instruments · linear voltage regulator
LM317A
Texas Instruments linear voltage regulator
Part-number family from National Semiconductor (now Texas Instruments, 2011). Older stock may carry National Semiconductor markings.
Request a quote for LM317ALM317A is a linear voltage regulator 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 Linear & LDO Regulators catalog (Power Management).
PartnerSemi sources the LM317A 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 | LM317A |
|---|---|
| Manufacturer | Texas Instruments |
| Heritage brand (part family) | National Semiconductor |
| Product type | linear voltage regulator |
| Category | Linear & LDO Regulators |
| 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 Linear & LDO Regulators
| Part number | Type | |
|---|---|---|
| LM2991 | linear voltage regulator | |
| LM2991S/NOPB | Voltage Regulators - Linear, Low Drop Out (LDO) Regulators | |
| LM2991SX/NOPB | Voltage Regulators - Linear, Low Drop Out (LDO) Regulators | |
| LM317 | linear voltage regulator | |
| LM317AEMP/NOPB | Voltage Regulators - Linear, Low Drop Out (LDO) Regulators | |
| LM317AEMPX/NOPB | Voltage Regulators - Linear, Low Drop Out (LDO) Regulators | |
| LM317AMDTX/NOPB | Voltage Regulators - Linear, Low Drop Out (LDO) Regulators | |
| LM317AT | Voltage Regulators - Linear, Low Drop Out (LDO) Regulators |
Similar part numbers from other manufacturers
Similar numbering only — not a confirmed equivalent. Ask us to check compatibility.
| Part number | Manufacturer | Type | |
|---|---|---|---|
| LM317ATG | HANSCHIP semiconductor | Voltage Regulators - Linear, Low Drop Out (LDO) Regulators | |
| LM317ASRG | HANSCHIP semiconductor | Voltage Regulators - Linear, Low Drop Out (LDO) Regulators | |
| LM317AG-AA3-R | Unisonic Technologies (UTC) | Voltage Regulators - Linear, Low Drop Out (LDO) Regulators | |
| LM317AG-TN3-R | Unisonic Technologies (UTC) | Voltage Regulators - Linear, Low Drop Out (LDO) Regulators | |
| LM317AL-TQ2-R | Unisonic Technologies (UTC) | Voltage Regulators - Linear, Low Drop Out (LDO) Regulators | |
| LM317AMDT/TR | HGSEMI | Voltage Regulators - Linear, Low Drop Out (LDO) Regulators |
Frequently asked questions
What is the LM317A?
LM317A is a linear voltage regulator 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 Linear & LDO Regulators catalog (Power Management).
Which part numbers are similar to the LM317A?
Similar part numbers in our catalog include LM317ATG (HANSCHIP semiconductor), LM317ASRG (HANSCHIP semiconductor), LM317AG-AA3-R (Unisonic Technologies (UTC)), LM317AG-TN3-R (Unisonic Technologies (UTC)), LM317AL-TQ2-R (Unisonic Technologies (UTC)) and LM317AMDT/TR (HGSEMI). Similar numbering does not guarantee compatibility; check the datasheets or ask us to confirm.
How can I buy the LM317A?
Request a quote from PartnerSemi at https://www.partnersemi.com/rfq/?mpn=LM317A&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.