Overview
Information | 250mA Low Dropout Voltage Regulator |
---|---|
Output Option | Fixed |
VOUT (V) | 3.3, 5.0 |
VOUT Adj MIN (V) | - |
VOUT Adj MAX (V) | - |
IOUT (mA) | 250 |
VIN MIN (V) | 2.4 |
VIN MAX (V) | 30 |
IQ (µA) | 150 |
Accuracy (%) | 0.5%, 1% |
Vdrop (mV) | 310 |
Output Noise (µVRMS) | 160 |
PSRR (dB) | - |
Junction Temp Range (°C) | -40 to 125 |
Package | SOT223-3 |
Features | Enable,Power Good,Current limit and thermal protection |
The SPX2954 and SPX2954A are low power voltage regulators. These devices are an excellent choice for use in battery powered applications such as cordless telephones, radio control systems and portable computers. The SPX2954 and SPX2954A feature low quiescent current and low dropout voltage (typical 20mV at 100μA and 310mV at 250mA). This includes a tight initial tolerance (0.5% for SPX2954A), extremely good load and line regulation (0.05% typical) and very low output temperature coefficient (20 ppm/°C typical), making the SPX2954/SPX2954A useful as a low power voltage reference.
The error flag output feature is used as a power-on reset for warning of a low output voltage, due to a falling input voltage. The logic-compatible shutdown feature enables the regulator to be switched on and off. The SPX2954/SPX2954A is offered in 3-pin TO-92, TO-263, SOT-223 and TO-220 packages and an 8-pin SOIC package.
- 5.0V and 3.3V versions at 250mA output
- Accurate 0.5% for SPX2954A
- Very low quiescent current
- Low dropout: 310mV at 250mA
- Extremely tight load and line regulation
- Very low temperature coefficient
- Current and thermal limiting
- Need only 1μF for stability
- Direct replacement for LP2954
- 8-pin versions only
- Error flag warns of output dropout
- Logic controlled electronic shutdown
- Programmable output from 1.24V to 30V
Documentation & Design Tools
Type | Title | Version | Date | File Size |
---|---|---|---|---|
Data Sheets | SPX2954 250mA Low Dropout Voltage Regulator | 1B | September 2022 | 560.4 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 | SPX2954AM3-L-5-0/TR CAD File (.bxl) | September 2018 | 24.9 KB | |
Symbols & Footprints | SPX2954M3-L-3-3/TR CAD File (.bxl) | September 2018 | 24.9 KB | |
Symbols & Footprints | SPX2954M3-L-5-0/TR CAD File (.bxl) | September 2018 | 24.9 KB |
Quality & RoHS
Part Number | RoHS | Exempt | RoHS | Halogen Free | REACH | TSCA | MSL Rating / Peak Reflow | Package |
---|---|---|---|---|---|---|---|
SPX2954AM3-L-5-0/TR | N | Y | Y | Y | Y | L1 / 260ᵒC | SOT-223-3 |
SPX2954M3-L-3-3/TR | N | Y | Y | Y | Y | L1 / 260ᵒC | SOT-223-3 |
SPX2954M3-L-5-0/TR | N | Y | Y | Y | Y | L1 / 260ᵒC | SOT-223-3 |
Click on the links above to download the Certificate of Non-Use of Hazardous Substances.
Parts & Purchasing
Part Number | Pkg Code | Min Temp | Max Temp | Status | Suggested Replacement | Buy Now | Order Samples | PDN |
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SPX2954AM3-3-3 | SOT-223-3 | -40 | 125 | OBS | ||||
SPX2954AM3-3-3/TR | SOT-223-3 | OBS | ||||||
SPX2954AM3-5-0 | SOT-223-3 | OBS | ||||||
SPX2954AM3-5-0/TR | SOT-223-3 | -40 | 125 | OBS | ||||
SPX2954AM3-L-3-3 | SOT-223-3 | -40 | 125 | OBS | SPX2954M3-L-3-3 | |||
SPX2954AM3-L-3-3/TR | SOT-223-3 | -40 | 125 | OBS | SPX2954M3-L-3-3/TR | |||
SPX2954AM3-L-5-0 | SOT-223-3 | -40 | 125 | OBS | SPX2954AM3-L-5-0/TR | |||
SPX2954AM3-L-5-0/TR | SOT-223-3 | -40 | 125 | Active | Click Buy Now | Order | ||
SPX2954AN-3-3 | TO-92-3 | OBS | ||||||
SPX2954AN-3-3/TR | TO-92-3 | OBS | ||||||
SPX2954AN-5-0 | TO-92-3 | OBS | ||||||
SPX2954AN-5-0/TR | TO-92-3 | OBS | ||||||
SPX2954AN-L-3-3 | TO-92-3 | -40 | 125 | OBS | ||||
SPX2954AN-L-3-3/TR | TO-92-3 | OBS | ||||||
SPX2954AN-L-5-0 | TO-92-3 | -40 | 125 | OBS | ||||
SPX2954AN-L-5-0/TR | TO-92-3 | OBS | ||||||
SPX2954AS-3-3 | NSOIC8 | OBS | ||||||
SPX2954AS-3-3/TR | NSOIC8 | OBS | ||||||
SPX2954AS-5-0 | NSOIC8 | -40 | 125 | OBS | ||||
SPX2954AS-5-0/TR | NSOIC8 | OBS | ||||||
SPX2954AS-L-3-3 | NSOIC8 | -40 | 125 | OBS | SPX2954S-L-3-3 | |||
SPX2954AS-L-3-3/TR | NSOIC8 | -40 | 125 | OBS | SPX2954S-L-3-3/TR | |||
SPX2954AS-L-5-0 | NSOIC8 | -40 | 125 | OBS | SPX2954AS-L-5-0/TR | |||
SPX2954AS-L-5-0/TR | NSOIC8 | -40 | 125 | OBS | SPX2954AM3-L-5-0/TR | |||
SPX2954AT-3-3 | TO-263-3 | OBS | ||||||
SPX2954AT-3-3/TR | TO-263-3 | OBS | ||||||
SPX2954AT-5-0 | TO-263-3 | OBS | ||||||
SPX2954AT-5-0/TR | TO-263-3 | OBS | ||||||
SPX2954AT-L-3-3 | TO-263-3 | OBS | ||||||
SPX2954AT-L-3-3/TR | TO-263-3 | OBS | ||||||
SPX2954AT-L-5-0 | TO-263-3 | -40 | 125 | OBS | ||||
SPX2954AT-L-5-0/TR | TO-263-3 | OBS | ||||||
SPX2954AU-3-3 | TO-220-3 | OBS | ||||||
SPX2954AU-5-0 | TO-220-3 | -40 | 125 | OBS | ||||
SPX2954AU-L-3-3 | TO-220-3 | OBS | ||||||
SPX2954AU-L-5-0 | TO-220-3 | OBS | ||||||
SPX2954M3-3-3 | SOT-223-3 | OBS | ||||||
SPX2954M3-3-3/TR | SOT-223-3 | OBS | ||||||
SPX2954M3-5-0 | SOT-223-3 | -40 | 125 | OBS | ||||
SPX2954M3-5-0/TR | SOT-223-3 | -40 | 125 | OBS | ||||
SPX2954M3-L-3-3 | SOT-223-3 | -40 | 125 | OBS | SPX2954M3-L-3-3/TR | |||
SPX2954M3-L-3-3/TR | SOT-223-3 | -40 | 125 | Active | Click Buy Now | Order | ||
SPX2954M3-L-5-0 | SOT-223-3 | -40 | 125 | OBS | SPX2954M3-L-5-0/TR | |||
SPX2954M3-L-5-0/TR | SOT-223-3 | -40 | 125 | Active | Click Buy Now | Order | ||
SPX2954N-3-3 | TO-92-3 | -40 | 125 | OBS | ||||
SPX2954N-3-3/TR | TO-92-3 | OBS | ||||||
SPX2954N-5-0 | TO-92-3 | -40 | 125 | OBS | ||||
SPX2954N-5-0/TR | TO-92-3 | OBS | ||||||
SPX2954N-L-3-3 | TO-92-3 | -40 | 125 | OBS | ||||
SPX2954N-L-3-3/TR | TO-92-3 | OBS | ||||||
SPX2954N-L-5-0 | TO-92-3 | OBS | ||||||
SPX2954N-L-5-0/TR | TO-92-3 | OBS | ||||||
SPX2954S-3-3 | NSOIC8 | -40 | 125 | OBS | ||||
SPX2954S-3-3/TR | NSOIC8 | OBS | ||||||
SPX2954S-5-0 | NSOIC8 | OBS | ||||||
SPX2954S-5-0/TR | NSOIC8 | -40 | 125 | OBS | ||||
SPX2954S-L-3-3 | NSOIC8 | -40 | 125 | OBS | SPX2954S-L-3-3/TR | |||
SPX2954S-L-3-3/TR | NSOIC8 | -40 | 125 | OBS | SPX2954M3-L-3-3/TR | |||
SPX2954S-L-5-0 | NSOIC8 | -40 | 125 | OBS | SPX2954S-L-5-0/TR | |||
SPX2954S-L-5-0/TR | NSOIC8 | -40 | 125 | OBS | ||||
SPX2954T-3-3 | TO-263-3 | OBS | ||||||
SPX2954T-3-3/TR | TO-263-3 | OBS | ||||||
SPX2954T-5-0 | TO-263-3 | -40 | 125 | OBS | ||||
SPX2954T-5-0/TR | TO-263-3 | -40 | 125 | OBS | ||||
SPX2954T-L-3-3 | TO-263-3 | OBS | ||||||
SPX2954T-L-3-3/TR | TO-263-3 | OBS | ||||||
SPX2954T-L-5-0 | TO-263-3 | -40 | 125 | OBS | ||||
SPX2954T-L-5-0/TR | TO-263-3 | -40 | 125 | OBS | ||||
SPX2954U-3-3 | TO-220-3 | OBS | ||||||
SPX2954U-5-0 | TO-220-3 | -40 | 125 | OBS | ||||
SPX2954U-L-3-3 | TO-220-3 | OBS | ||||||
SPX2954U-L-5-0 | TO-220-3 | 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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NSOIC8 |
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SOT-223-3 |
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TO-220-3 |
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TO-263-3 |
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TO-92-3 |
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Notifications
Distribution Date | Description | File |
---|---|---|
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 |
07/11/2017 | Product Discontinuation Notification | PCN & PDN Download |
04/12/2017 | Qualification of alternate assembly subcon, JCET. | PCN & PDN Download |
02/15/2017 | Qualification of alternate assembly subcon, ANST. | PCN & PDN Download |
07/26/2016 | Product discontinuation notification. Discontinued. | PCN & PDN Download |
04/13/2016 | Qualification of alternate assembly subcon, JCET. | PCN & PDN Download |
09/09/2013 | Addition of an alternate qualified SOT-223 assembly site, Carsem (Malaysia) using Hitachi CEL9240 molding compound, in addition to the current qualified assembly site, Unisem (Ipoh) using Sumitomo G600 molding compound. Material Change & Alternate Assembly Site. | PCN & PDN Download |
07/02/2013 | Qualification of an alternate qualified assembly supplier, ASE Chung-Li (Taiwan) for the 8L NSOIC package using copper wire bonding. Material change and alternate assembly supplier qualified. | PCN & PDN Download |
03/23/2010 | Alternate qualified assembly supplier Capacity enhancement | PCN & PDN Download |
12/07/2009 | Enhancement of NSOIC 8, NSOIC14 and NSOIC16 packages to Green (halogen-free) via Mold Compound & Die Attach Material. Enhance packages to be Green (halogen-free). | PCN & PDN Download |
03/04/2009 | Notice of Obsolescence Discontinued by Exar Corporation due to low market demand | PCN & PDN Download |
02/28/2007 | Product Obsolescence Letter and Discontinuation Notification. Discontinued. | PCN & PDN Download |
02/02/2006 | Announcing transfer of certain Power Management and Interface Products from Hillview fabrication and facility to wafer foundary Silan. 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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