Low Noise 300mA CMOS LDO Regulators
Data Sheet


The SP6203 and SP6205 are ultra low noise CMOS LDOs with very low dropout and ground current. The noise performance is achieved by means of an external bypass capacitor without sacrificing turn-on and turn-off speed critical to portable applications. Extremely stable and easy to use, these devices offer excellent PSRR and line/load regulation. Target applications include battery powered equipment such as portable and wireless products. Regulators' ground current increases only slightly in dropout. Fast turn-on/turn-off enable control and an internal 30Ω pull down on output allows quick discharge of output even under no load conditions. Both LDOs are protected with current limit and thermal shutdown.

Both LDOs are available in fixed and adjustable output voltage versions and come in an industry standard 5-pin SOT-23 and small 2 x 3mm 8-pin DFN packages. For SC-70 100mA CMOS LDO, SP6213 is available.


  • Very low dropout voltage: 0.6Ω PMOS pass device
  • Accurate output voltage: 2% over temperature
  • Guaranteed 300mA output current
  • Ultra-low noise output: 12µVRMS with 10nF bypass
  • Unconditionally stable with 2.2µF ceramic
  • Low quiescent current: 45μA
  • Very low ground current: 350μA at 500 mA
  • Power saving shutdown mode: < 1μA
  • Fast turn on and turn off: 60us
  • Fast transient response
  • Current limit and thermal shutdown protection
  • Very good load/line regulation: 0.07/0.04%
  • Excellent PSRR: 67dB <1kHz
  • Industry standard 5 pin, SOT-23 and Small 8-pin DFN package
  • Fixed output voltages: 1.8V, 2.5V, 2.8V, 2.85V, 3.0V, and 3.3V
  • Adjustable output available


Design Tools

Symbols & Footprints


Pkg Code Details Quantities Dimensions PDF
DFN8 2x3
  • JEDEC Reference: MO-229
  • MSL Pb-Free: L1 @ 260ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 59ºC/W
  • Bulk Pack Style: Canister
  • Quantity per Bulk Pack: n/a
  • Quantity per Reel: 3000
  • Quantity per Tube: n/a
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): 330 x 12 x 8
  • Tape & Reel Unit Orientation: Quadrant 1
  • Dimensions: mm
  • Length: 2
  • Width: 3
  • Thickness: 1.00
  • Lead Pitch: 0.5
  • JEDEC Reference: MO-178
  • MSL Pb-Free: L1 @ 260ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 191ºC/W
  • Bulk Pack Style: Canister
  • Quantity per Bulk Pack: n/a
  • Quantity per Reel: 3000
  • Quantity per Tube: n/a
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): 180 x 8 x 12
  • Tape & Reel Unit Orientation: 3 Pins at sprocket hole.
  • Dimensions: mm
  • Length: 2.90
  • Width: 1.60
  • Thickness: 1.45
  • Lead Pitch: 0.95

Parts & Purchasing

Part Number Pkg Code Min Temp Max Temp Status Buy Now Order Samples
SP6203AER DFN8 2x3 OBS
SP6203EK SOT-23-5 -40 125 OBS
SP6203EK/TR SOT-23-5 -40 125 OBS
SP6203EM5 SOT-23-5 -40 125 OBS
SP6203EM5/TR SOT-23-5 -40 125 OBS
SP6203EM5-2-5 SOT-23-5 OBS
SP6203EM5-2-5/TR SOT-23-5 OBS
SP6203EM5-2-7 SOT-23-5 -40 125 OBS
SP6203EM5-2-7/TR SOT-23-5 OBS
SP6203EM5-2-8 SOT-23-5 OBS
SP6203EM5-2-8/TR SOT-23-5 -40 125 OBS
SP6203EM5-2-85 SOT-23-5 OBS
SP6203EM5-2-85/TR SOT-23-5 -40 125 OBS
SP6203EM5-3-0 SOT-23-5 -40 125 OBS
SP6203EM5-3-0/TR SOT-23-5 -40 125 OBS
SP6203EM5-3-3 SOT-23-5 OBS
SP6203EM5-3-3/TR SOT-23-5 -40 125 OBS
SP6203EM5-5-0 SOT-23-5 OBS
SP6203EM5-5-0/TR SOT-23-5 OBS
SP6203EM5-L SOT-23-5 -40 125 OBS Suggested:
SP6203EM5-L/TR SOT-23-5 -40 125 OBS Suggested:
SP6203EM5-L-1-8 SOT-23-5 OBS
SP6203EM5-L-1-8/TR SOT-23-5 OBS
SP6203EM5-L-2-5 SOT-23-5 -40 125 OBS Suggested:
SP6203EM5-L-2-5/TR SOT-23-5 -40 125 OBS Suggested:
SP6203EM5-L-2-7 SOT-23-5 -40 125 OBS
SP6203EM5-L-2-7/TR SOT-23-5 -40 125 OBS
SP6203EM5-L-2-8 SOT-23-5 -40 125 OBS Suggested:
SP6203EM5-L-2-8/TR SOT-23-5 -40 125 Active Order
SP6203EM5-L-2-85 SOT-23-5 -40 125 OBS
SP6203EM5-L-2-85/TR SOT-23-5 -40 125 OBS
SP6203EM5-L-3-0 SOT-23-5 -40 125 OBS Suggested:
SP6203EM5-L-3-0/TR SOT-23-5 -40 125 OBS Suggested:
SP6203EM5-L-3-3 SOT-23-5 -40 125 OBS Suggested:
SP6203EM5-L-3-3/TR SOT-23-5 -40 125 OBS Suggested:
SP6203EM5-L-ADJ SOT-23-5 -40 125 OBS
SP6203ER DFN8 2x3 OBS
SP6203ER/TR DFN8 2x3 OBS
SP6203ER-2-5 DFN8 2x3 OBS
SP6203ER-2-5/TR DFN8 2x3 OBS
SP6203ER-2-7 DFN8 2x3 OBS
SP6203ER-2-7/TR DFN8 2x3 OBS
SP6203ER-2-8 DFN8 2x3 OBS
SP6203ER-2-8/TR DFN8 2x3 OBS
SP6203ER-2-85 DFN8 2x3 OBS
SP6203ER-2-85/TR DFN8 2x3 OBS
SP6203ER-3-0 DFN8 2x3 OBS
SP6203ER-3-0/TR DFN8 2x3 -40 125 OBS
SP6203ER-3-3 DFN8 2x3 -40 125 OBS
SP6203ER-3-3/TR DFN8 2x3 OBS
SP6203ER-L DFN8 2x3 -40 125 OBS Suggested:
SP6203ER-L/TR DFN8 2x3 -40 125 OBS Suggested:
SP6203ER-L-1-8 DFN8 2x3 -40 125 OBS Suggested:
SP6203ER-L-1-8/TR DFN8 2x3 -40 125 OBS Suggested:
SP6203ER-L-2-5 DFN8 2x3 -40 125 OBS Suggested:
SP6203ER-L-2-5/TR DFN8 2x3 -40 125 OBS Suggested:
SP6203ER-L-2-7 DFN8 2x3 OBS
SP6203ER-L-2-7/TR DFN8 2x3 OBS
SP6203ER-L-2-8 DFN8 2x3 -40 125 OBS Suggested:
SP6203ER-L-2-8/TR DFN8 2x3 -40 125 OBS Suggested:
SP6203ER-L-2-85 DFN8 2x3 -40 125 OBS Suggested:
SP6203ER-L-2-85/TR DFN8 2x3 -40 125 OBS Suggested:
SP6203ER-L-3-0 DFN8 2x3 -40 125 OBS Suggested:
SP6203ER-L-3-0/TR DFN8 2x3 -40 125 OBS Suggested:
SP6203ER-L-3-3 DFN8 2x3 -40 125 OBS Suggested:
SP6203ER-L-3-3/TR DFN8 2x3 -40 125 OBS Suggested:
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 & Environmental Data

Part Number RoHS | Exempt RoHS Halogen Free REACH MSL Rating / Peak Reflow Package
SP6203EM5-L-2-8/TR N Y Y Y L1 / 260ᵒC SOT-23-5

Click on the links above to download the Certificate of Non-Use of Hazardous Substances.

Additional Quality Documentation may be available, please Contact Support.
Distribution Date Description File
02/16/2018 Standard tape and reel quantity will change from 2500 pieces to 3000 pieces for SOT23-3L/5L/6L. Addendum: Remove SOT-89 parts from affected products list.
07/11/2017 Product Discontinuation Notification
01/30/2017 Qualification of alternate assembly subcon, JCET.
01/27/2017 Qualification of alternate assembly subcon, ANST, China.
01/12/2017 Standard tape and reel quantity will change from 2500 pieces to 3000 pieces for SOT23-3L/5L/6L.
07/26/2016 Product discontinuation notification. Discontinued.
10/04/2013 Addition of an alternate qualified assembly site, UTAC Thailand, for assembly using copper or gold wire bonding. Material change and alternate assembly site.
07/30/2013 Addition of an alternate qualified assembly supplier, Carsem (Malaysia) for SOT23 package using copper wire bonding. Material Change.
09/29/2011 Product marking change for products in 2x3mm, 8ld DFN. To improve product traceability.
03/04/2009 Notice of Obsolescence Discontinued by Exar Corporation due to low market demand
02/28/2007 Product Obsolescence Letter and Discontinuation Notification. Discontinued.


Search our list of FAQs for answers to common technical questions.
For material content, environmental, quality and reliability questions review the Quality tab or visit our Quality page.
For ordering information and general customer service visit our Contact Us page.

Frequently Asked Questions

The best way to determine this is to go to maxlinear.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. Click on part number header or on the link at the bottom of the result.  This brings you to the product page. For example:


Click on Parts & Purchasing, highlighted with the blue arrow 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, the legend still present:


Another method to find out if a part is OBS or EOL is to click on SUPPORT at the top:


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 

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