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
Symbols and Footprints
Parts & Purchasing
|Part Number||Pkg Code||RoHS||Min Temp||Max Temp||Status||Buy Now||Order Samples|
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.
|08/16/2016||Addition of an alternate qualified location, JCET.||PCN 16-0522-02 JCET-1033.pdf|
|07/26/2016||Product discontinuation notification. Discontinued.||PDN 16-0626-01-1033.pdf|
|12/22/2015||Alternate assembly site Addition of an alternate assembly supplier Nantong Fujitsu (China).||PCN 15-0728-01 Nantong Fujitsu Assy-1033.pdf|
|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.||PDN_080910-01-1033.pdf|
|02/28/2007||Product Obsolescence Letter and Discontinuation Notification. Discontinued.||POL_022807-1033.pdf|
|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 06-0508-02 for SPX2941-1033.pdf|
|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-06-0130-55-1033.pdf|
Frequently Asked Questions
In this example, we looked for XRA1201. When you hover over it, it will turn grey and you can click anywhere in the grey box. This brings you to the product page. For example:
Click on Parts & Purchasing, highlighted in yellow above. The screen changes to:
Notice the status column and the “Show obsolete parts” link:
A legend tells you the definition of the different statuses. Click on the “Show obsolete parts” link to see EOL or OBS part numbers along with the Active part numbers:
Another method to find out if a part is OBS or EOL is to click on SUPPORT:
And then Product Change Notifications
Type the part into the search, and click on one of the part numbers from the drop down menu. Then you can look for the Product Discontinuation Notice, which generally is at the top of the list, for example:
If you see this, it tells you that this particular orderable part has been discontinued and when the last order date is, or was. If you click on the file, then you can view the notice we sent about this if you purchased the part in the recent past. It may also advise of a replacement part. When an orderable part first becomes discontinued, Product Discontinuation Notices are sent are sent to those who have purchased the parts in the recent past, if purchased directly, with a dated opportunity to place a last order.