SPX1587

3A Low Dropout Voltage Regulator
Data Sheet

Description

The SPX1587 is a low power positive-voltage regulator designed to satisfy moderate power requirements with a cost effective, small footprint solution.

This device is an excellent choice for use in battery powered applications and portable computers. The SPX1587 features very low quiescent current and a low dropout voltage of 1.1V at a full load. As output current decreases, quiescent current flows into the load, increasing efficiency. The SPX1587 is available in adjustable or fixed 1.5V, 2.5V, 3.3V and 5.0V output voltages.

The SPX1587 is offered in several 3-pin surface mount packages: TO-252, TO-220 and TO-263. A 10μF ceramic or tantalum output capacitor provides unconditional stability.

Features

  • Guaranteed 3A output current
  • Three terminal adjustable or fixed
  • 1.5V,  2.5V, 3.3V and 5.0V
  • Low quiescent current
  • Low dropout voltage: 1.1V at 3A
  • Line regulation: 0.1%
  • Load regulation: 0.1%
  • Stable with 10uF ceramic capacitor
  • Overcurrent and thermal protection
  • Available packages: TO252, TO220 and TO263
  • Similar to industry standard LT1085/ LT1585

Application

Design Tools

Symbols & Footprints

Packaging

Pkg Code Details Quantities Dimensions PDF
TO-220-3
  • JEDEC Reference: TO-220
  • MSL Pb-Free: n/a
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 29.4ºC/W
  • Bulk Pack Style: Tube
  • Quantity per Bulk Pack: n/a
  • Quantity per Reel: n/a
  • Quantity per Tube: 50
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): n/a
  • Tape & Reel Unit Orientation: n/a
  • Dimensions: inch
  • Length: 0.355 max
  • Width: 0.420 max
  • Thickness: 0.190 max
  • Lead Pitch: 0.10
TO-252-3
  • JEDEC Reference: TO-252
  • MSL Pb-Free: L2 @ 260ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 50ºC/W
  • Bulk Pack Style: Tube
  • Quantity per Bulk Pack: n/a
  • Quantity per Reel: 2000
  • Quantity per Tube: 80
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): 330 x 16 x 8
  • Tape & Reel Unit Orientation: Tab at sprocket hole.
  • Dimensions: inch
  • Length: 0.24
  • Width: 0.265 max
  • Thickness: 0.094 max
  • Lead Pitch: 0.09
TO-263-3
  • JEDEC Reference: TO-263
  • MSL Pb-Free: L3 @ 245ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 31.4ºC/W
  • Bulk Pack Style: Tube
  • Quantity per Bulk Pack: n/a
  • Quantity per Reel: 500
  • Quantity per Tube: 50
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): 330 x 24 x 16
  • Tape & Reel Unit Orientation: Tab away from sprocket hole.
  • Dimensions: inch
  • Length: 0.380 max
  • Width: 0.420 max
  • Thickness: 0.190
  • Lead Pitch: 0.10

Parts & Purchasing

Part Number Pkg Code RoHS Min Temp Max Temp Status Buy Now Order Samples
SPX1587AR TO-252-3 -40 125 OBS
SPX1587AR/TR TO-252-3 -40 125 OBS
SPX1587AR-1-5 TO-252-3 -40 125 OBS
SPX1587AR-1-5/TR TO-252 OBS
SPX1587AR-1-8 TO-252 OBS
SPX1587AR-1-8/TR TO-252 OBS
SPX1587AR-2-5/TR TO-252 OBS
SPX1587AR-3-3 TO-252-3 -40 125 OBS
SPX1587AR-3-3/TR TO-252-3 -40 125 OBS
SPX1587AR-5-0/TR TO-252 OBS
SPX1587AR-L TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L/TR
SPX1587AR-L/TR TO-252-3 -40 125 OBS Suggested:
SPX1587AT-L/TR
SPX1587AR-L-1-5 TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L
SPX1587AR-L-1-5/TR TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L/TR
SPX1587AR-L-1-8 TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L
SPX1587AR-L-1-8/TR TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L/TR
SPX1587AR-L-2-5 TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L
SPX1587AR-L-2-5/TR TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L/TR
SPX1587AR-L-3-0 TO-252-3 -40 125 OBS
SPX1587AR-L-3-0/TR TO-252-3 -40 125 OBS
SPX1587AR-L-3-3 TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L
SPX1587AR-L-3-3/TR TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L/TR
SPX1587AR-L-5-0 TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L
SPX1587AR-L-5-0/TR TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L/TR
SPX1587AT-1-5 TO-263-3 OBS
SPX1587AT-1-8/TR TO-263-3 OBS
SPX1587AT-2-5 TO-263-3 -40 125 OBS
SPX1587AT-2-5/TR TO-263-3 -40 125 OBS Order
SPX1587AT-2-8 TO-263-3 OBS
SPX1587AT-2-8/TR TO-263-3 OBS
SPX1587AT-2-85 TO-263-3 OBS
SPX1587AT-2-85/TR TO-263-3 OBS
SPX1587AT-3-3 TO-263-3 -40 125 OBS
SPX1587AT-3-3/TR TO-263-3 -40 125 OBS
SPX1587AT-5-0/TR TO-263-3 OBS
SPX1587AT-L TO-263-3 -40 125 OBS Suggested:
SPX1587AT-L/TR
SPX1587AT-L/TR TO-263-3 -40 125 Active Order
SPX1587AT-L-1-5 TO-263-3 -40 125 OBS Suggested:
SPX1587AT-L
SPX1587AT-L-1-5/TR TO-263-3 -40 125 OBS Suggested:
SPX1587AT-L/TR
SPX1587AT-L-1-8 TO-263-3 -40 125 OBS Suggested:
SPX1587AT-L
SPX1587AT-L-1-8/TR TO-263-3 -40 125 OBS Suggested:
SPX1587AT-L/TR
SPX1587AT-L-2-5 TO-263-3 -40 125 OBS Suggested:
SPX1587AT-2-5/TR
SPX1587AT-L-2-5/TR TO-263-3 -40 125 OBS Suggested:
SPX1587AT-L/TR
SPX1587AT-L-2-8 TO-263-3 -40 125 OBS Suggested:
SPX1587AT-L
SPX1587AT-L-2-8/TR TO-263-3 -40 125 OBS Suggested:
SPX1587AT-L/TR
SPX1587AT-L-2-85 TO-263-3 -40 125 OBS Suggested:
SPX1587AT-L
SPX1587AT-L-2-85/TR TO-263-3 -40 125 OBS Suggested:
SPX1587AT-L/TR
SPX1587AT-L-3-0 TO-263-3 -40 125 OBS
SPX1587AT-L-3-0/TR TO-263-3 -40 125 OBS
SPX1587AT-L-3-3 TO-263-3 -40 125 OBS Suggested:
SPX1587AT-L-3-3/TR
SPX1587AT-L-3-3/TR TO-263-3 -40 125 Active Order
SPX1587AT-L-5-0 TO-263-3 -40 125 OBS Suggested:
SPX1587AT-L
SPX1587AT-L-5-0/TR TO-263-3 -40 125 OBS Suggested:
SPX1587AT-L/TR
SPX1587AU-1-8 TO-220-3 OBS
SPX1587AU-2-5 TO-220-3 -40 125 OBS
SPX1587AU-2-8 TO-220-3 OBS
SPX1587AU-2-85 TO-220-3 OBS
SPX1587AU-L TO-220-3 -40 125 OBS Suggested:
SPX1587AT-L
SPX1587AU-L/TR TO-220-3 -40 125 OBS
SPX1587AU-L-1-5 TO-220-3 -40 125 OBS Suggested:
SPX1587AU-L
SPX1587AU-L-1-8 TO-220-3 -40 125 OBS Suggested:
SPX1587AU-L
SPX1587AU-L-2-5 TO-220-3 -40 125 OBS Suggested:
SPX1587AU-L
SPX1587AU-L-2-8 TO-220-3 -40 125 OBS Suggested:
SPX1587AU-L
SPX1587AU-L-2-85 TO-220-3 -40 125 OBS Suggested:
SPX1587AU-L
SPX1587AU-L-3-0 TO-220-3 -40 125 OBS
SPX1587AU-L-3-3 TO-220-3 -40 125 OBS Suggested:
SPX1587AU-L
SPX1587AU-L-5-0 TO-220-3 -40 125 OBS Suggested:
SPX1587AU-L
SPX1587R TO-252-3 -40 125 OBS
SPX1587R/TR TO-252 OBS
SPX1587R-1-5 TO-252 OBS
SPX1587R-1-5/TR TO-252 OBS
SPX1587R-1-8 TO-252 OBS
SPX1587R-1-8/TR TO-252 OBS
SPX1587R-2-5 TO-252 OBS
SPX1587R-2-5/TR TO-252 OBS
SPX1587R-3-3 TO-252 OBS
SPX1587R-3-3/TR TO-252 OBS
SPX1587R-5-0 TO-252 OBS
SPX1587R-5-0/TR TO-252 OBS
SPX1587R-L TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L
SPX1587R-L/TR TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L/TR
SPX1587R-L-1-5 TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L
SPX1587R-L-1-5/TR TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L/TR
SPX1587R-L-1-8 TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L
SPX1587R-L-1-8/TR TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L/TR
SPX1587R-L-2-5 TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L
SPX1587R-L-2-5/TR TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L/TR
SPX1587R-L-3-0 TO-252-3 -40 125 OBS
SPX1587R-L-3-0/TR TO-252-3 -40 125 OBS
SPX1587R-L-3-3 TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L
SPX1587R-L-3-3/TR TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L/TR
SPX1587R-L-5-0 TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L
SPX1587R-L-5-0/TR TO-252-3 -40 125 OBS Suggested:
SPX1587AR-L/TR
SPX1587T TO-263-3 OBS
SPX1587T/TR TO-263-3 -40 125 OBS
SPX1587T-1-5/TR TO-263-3 OBS
SPX1587T-1-8 TO-263-3 OBS
SPX1587T-1-8/TR TO-263-3 OBS
SPX1587T-2-5 TO-263-3 -40 125 OBS
SPX1587T-2-5/TR TO-263-3 -40 125 OBS
SPX1587T-2-8 TO-263-3 OBS
SPX1587T-2-8/TR TO-263-3 OBS
SPX1587T-2-85 TO-263-3 OBS
SPX1587T-2-85/TR TO-263-3 OBS
SPX1587T-3-3/TR TO-263-3 -40 125 OBS
SPX1587T-5-0 TO-263-3 OBS
SPX1587T-5-0/TR TO-263-3 OBS
SPX1587T-L TO-263-3 -40 125 OBS Suggested:
SPX1587AT-L/TR
SPX1587T-L/TR TO-263-3 -40 125 OBS Suggested:
SPX1587AT-L/TR
SPX1587T-L-1-5 TO-263-3 -40 125 OBS Suggested:
SPX1587AT-L/TR
SPX1587T-L-1-5/TR TO-263-3 -40 125 OBS Suggested:
SPX1587AT-L/TR
SPX1587T-L-1-8 TO-263-3 -40 125 OBS Suggested:
SPX1587T-L
SPX1587T-L-1-8/TR TO-263-3 -40 125 OBS Suggested:
SPX1587T-L/TR
SPX1587T-L-2-5 TO-263-3 -40 125 OBS Suggested:
SPX1587T-L
SPX1587T-L-2-5/TR TO-263-3 -40 125 OBS Suggested:
SPX1587T-L/TR
SPX1587T-L-2-8 TO-263-3 -40 125 OBS Suggested:
SPX1587T-L
SPX1587T-L-2-8/TR TO-263-3 -40 125 OBS Suggested:
SPX1587T-L/TR
SPX1587T-L-2-85 TO-263-3 -40 125 OBS Suggested:
SPX1587T-L
SPX1587T-L-2-85/TR TO-263-3 -40 125 OBS Suggested:
SPX1587T-L/TR
SPX1587T-L-3-0 TO-263-3 -40 125 OBS
SPX1587T-L-3-0/TR TO-263-3 -40 125 OBS
SPX1587T-L-3-3 TO-263-3 -40 125 OBS Suggested:
SPX1587T-L
SPX1587T-L-3-3/TR TO-263-3 -40 125 OBS Suggested:
SPX1587T-L/TR
SPX1587T-L-5-0 TO-263-3 -40 125 OBS Suggested:
SPX1587AT-L/TR
SPX1587T-L-5-0/TR TO-263-3 -40 125 OBS Suggested:
SPX1587AT-L/TR
SPX1587U TO-220-3 OBS
SPX1587U-1-5 TO-220-3 OBS
SPX1587U-1-8 TO-220-3 OBS
SPX1587U-2-5 TO-220-3 OBS
SPX1587U-2-8 TO-220-3 OBS
SPX1587U-2-85 TO-220-3 OBS
SPX1587U-3-3 TO-220-3 -40 125 OBS
SPX1587U-5-0 TO-220-3 OBS
SPX1587U-L TO-220-3 -40 125 OBS Suggested:
SPX1587AU-L
SPX1587U-L-1-5 TO-220-3 -40 125 OBS Suggested:
SPX1587AU-L
SPX1587U-L-1-8 TO-220-3 -40 125 OBS Suggested:
SPX1587AU-L
SPX1587U-L-2-5 TO-220-3 -40 125 OBS Suggested:
SPX1587AU-L
SPX1587U-L-2-8 TO-220-3 -40 125 OBS Suggested:
SPX1587AU-L
SPX1587U-L-2-85 TO-220-3 -40 125 OBS Suggested:
SPX1587AU-L
SPX1587U-L-3-0 TO-220-3 -40 125 OBS
SPX1587U-L-3-3 TO-220-3 -40 125 OBS Suggested:
3 SPX1587AT-L-3-3
SPX1587U-L-5-0 TO-220-3 -40 125 OBS Suggested:
SPX1587AT-L-2-5
Show obsolete parts
Part Status Legend
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.

Quality Documents

Part Number RoHS REACH
SPX1587T-L Download
SPX1587T-L-1-5 Download
SPX1587T-L-5-0 Download
SPX1587U-L-3-3 Download
SPX1587U-L-5-0 Download
SPX1587AU-L Download
SPX1587AR-L Download
SPX1587AT-L Download Download
SPX1587AT-L-2-5 Download
SPX1587AT-L-3-3 Download
SPX1587AT-L/TR Download
SPX1587AR-L/TR Download
SPX1587AT-L-2-5/TR Download
SPX1587AT-L-3-3/TR Download
Additional Quality Documentation may be available, please contact customersupport@maxlinear.com.
Distribution Date Description File
02/27/2018 Qualification of alternate assembly subcon, JCET. PCN 18-0206-02 JCET-1033.pdf
07/11/2017 Product Discontinuation Notification PDN_17-0623-01-1033.pdf
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
02/05/2016 Alternate assembly site. Addition of an alternate assembly supplier Nantong Fujitsu (China) PCN 15-1250-03 Nantong Fujitsu-1033.pdf
01/13/2016 Product discontinuation notice PDN 15-1043-01-1033.pdf
09/11/2015 Updated information subsequent to original published PCN 13-1043-01 on 10/28/2014 Products listed in 3L TO-252 package have been improved to MSL2 at the same production site PCN 13-1043-01a UPDATE-1033.PDF
10/28/2014 Alternate Assembly Site. Qualification of an alternate production site, Greatek, Taiwan for 3L TO-252 (MSL3, 260C). PCN_13-1043-01-1033.pdf
03/04/2009 Notice of Obsolescence Discontinued by Exar Corporation due to low market demand PDN_090304-01-1033.pdf
02/28/2007 Product Obsolescence Letter and Discontinuation Notification. Discontinued. POL_022807-1033.pdf
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-06-0130-48-1033.pdf

Frequently Asked Questions

The best way to determine this is to go to exar.com and type the part into the search function. At or near the top of the results you should see something that looks like
 
 

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.

Yes. Try our Excel-based heat calculation spreadsheet ANP-03, Thermal Calculator
 
For further study, this spreadsheet is mentioned in the following helpful application note: ANP-02, Thermal Considerations for Linear Regulators