Overview
Information | 1A Low Dropout Voltage Regulator |
---|---|
Output Option | Adjustable |
VOUT (V) | Adj |
VOUT Adj MIN (V) | 1.24 |
VOUT Adj MAX (V) | 15.45 |
IOUT (mA) | 1000 |
VIN MIN (V) | 3 |
VIN MAX (V) | 16 |
IQ (µA) | 12000 |
Accuracy (%) | 3% |
Vdrop (mV) | 280 |
Output Noise (µVRMS) | 260 |
PSRR (dB) | - |
Junction Temp Range (°C) | -40 to 125 |
Package | TO263-5 |
Features | Enable,Reverse battery protection,Current limit and thermal protection |
The SPX2941 is a 1A, accurate voltage regulator with a low drop out voltage of 280mV (typical) at 1A. These regulators are specifically designed for low voltage applications that require a low dropout voltage and a fast transient response. They are fully fault protected against overcurrent, reverse battery, and positive and negative voltage transients. The SPX2941 is offered in 5-pin TO-220 and TO-263 packages. For a 3A version, refer to the SPX29300 datasheet.
- Adjustable output down to 1.25V
- Low quiescent current
- Guaranteed 1.5A peak output current
- Low dropout voltage of 280mV @ 1A
- Extremely tight load and line regulation
- Extremely fast transient response
- Reverse battery protection
- Internal thermal and current limit protection
- Zero current shutdown
- Standard TO-220 and TO-263 packages
Documentation & Design Tools
Type | Title | Version | Date | File Size |
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Data Sheets | 1A Low Dropout Voltage Regulator Adjustable Output, Fast Response | R00 | May 2023 | 870.8 KB |
Application Notes | AN200, Downloading and Installing CAD Symbols and Footprints with Ultra Librarian | April 2019 | 1.2 MB | |
Product Brochures | Power Management Brochure | May 2024 | 7.1 MB | |
Symbols & Footprints | SPX2941T5-L/TR CAD File (.bxl) | September 2018 | 18.5 KB |
Quality & RoHS
Parts & Purchasing
Part Number | Pkg Code | Min Temp | Max Temp | Status | Suggested Replacement | Buy Now | Order Samples | PDN |
---|---|---|---|---|---|---|---|---|
SPX2941T5 | TO-263-5 | -40 | 125 | OBS | SPX2941T5-L | |||
SPX2941T5-L | TO-263-5 | -40 | 125 | OBS | SPX2941T5-L/TR | |||
SPX2941T5-L/TR | TO-263-5 | -40 | 125 | Active | Click Buy Now | Order | ||
SPX2941T5/TR | TO-263-5 | -40 | 125 | OBS | T5-L/TR | |||
SPX2941U5 | TO-220-5 | -40 | 125 | OBS | ||||
SPX2941U5-L | TO-220-5 | -40 | 125 | OBS |
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.
Packaging
Pkg Code | Details | Quantities | Dimensions |
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TO-220-5 |
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TO-263-5 |
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Notifications
Distribution Date | Description | File |
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07/17/2023 | In 2023, MaxLinear will be converting all shipping labels for the parts noted from an EXAR format to MaxLinear’s label. During this transition customers may receive either label. This change affects only shipping and packing labels. This change will not affect the part number, part marking, manufacturing process or manufacturing sites. Only work in progress material will be converted. Existing inventory from MaxLinear’s warehouse, channel sales, distributor, and such, will not be converted. Hence, customers may experience receiving mixed shipments with both Exar and MaxLinear labels for some period until existing inventory of old labels is eventually cleared out. Situation is product to product with no predictable way to determine when all old labels will be exhausted. No change to product form, fit, function and reliability. ADDENDUM A: Fixed MBB label logo for DX204001 to MaxLinear logo. ADDENDUM B: Replaced ‘All other affected products outer box label’ with clearer pictures. Corrected Date Issued (from original PCN) issue date +90 days to August 30, 2023. | PCN & PDN Download |
06/01/2023 | In 2023, MaxLinear will be converting all shipping labels for the parts noted from an EXAR format to MaxLinear’s label. During this transition customers may receive either label. This change affects only shipping and packing labels. This change will not affect the part number, part marking, manufacturing process or manufacturing sites. Only work in progress material will be converted. Existing inventory from MaxLinear’s warehouse, channel sales, distributor, and such, will not be converted. Hence, customers may experience receiving mixed shipments with both Exar and MaxLinear labels for some period until existing inventory of old labels is eventually cleared out. Situation is product to product with no predictable way to determine when all old labels will be exhausted. No change to product form, fit, function and reliability. | PCN & PDN Download |
06/01/2023 | In 2023, MaxLinear will be converting all shipping labels for the parts noted from an EXAR format to MaxLinear’s label. During this transition customers may receive either label. This change affects only shipping and packing labels. This change will not affect the part number, part marking, manufacturing process or manufacturing sites. Only work in progress material will be converted. Existing inventory from MaxLinear’s warehouse, channel sales, distributor, and such, will not be converted. Hence, customers may experience receiving mixed shipments with both Exar and MaxLinear labels for some period until existing inventory of old labels is eventually cleared out. Situation is product to product with no predictable way to determine when all old labels will be exhausted. No change to product form, fit, function and reliability. ADDENDUM: Fixed MBB label logo for DX204001 to MaxLinear logo. | PCN & PDN Download |
08/16/2016 | Addition of an alternate qualified location, JCET. | PCN & PDN Download |
07/26/2016 | Product discontinuation notification. Discontinued. | PCN & PDN Download |
12/22/2015 | Alternate assembly site Addition of an alternate assembly supplier Nantong Fujitsu (China). | PCN & PDN Download |
09/10/2008 | Notice of Obsolescence –Selected Power Management Parts This is notification that the Power Management products listed on the attached page have been discontinued by Exar Corporation due to low market demand, effective immediately. | PCN & PDN Download |
02/28/2007 | Product Obsolescence Letter and Discontinuation Notification. Discontinued. | PCN & PDN Download |
06/26/2006 | Removed reference to error flag; removed reference to “replacement for LM2941” and any other devices. Enable is active high, opposite to competitors’ parts. | PCN & PDN Download |
02/02/2006 | Announcing transfer of certain Power Management and Interface Products from Hillview fabrication facility to wafer foundary BCD. See attached Product List Power Management and Interface products as listed are being transfer to external wafer foundry, due to cessation of operations of the sipex Hillview Fabrication manufacturing site | PCN & PDN Download |
FAQs & Support
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The Parts & Purchasing section of the product page shows the Status of all orderable part numbers for that product. Click Show obsolete parts, to see all EOL or OBS products.