Low Noise 300mA CMOS LDO Regulators
Data Sheets EOL (End of Life)


Information Low Noise 300mA CMOS LDO Regulators
Output Option Fixed
VOUT (V) 2.8
IOUT (mA) 300
VIN MIN (V) 2.7
IQ (µA) 45
Accuracy (%) 2%
Vdrop (mV) 180
Output Noise (µVRMS) 12
PSRR (dB) 67
Junction Temp Range (°C) -40 to 125
Package SOT23-5
Features Enable, Current limit, thermal protection
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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

Documentation & Design Tools

Type Title Version Date File Size
Data Sheets SP6203 / SP6205 300mA/500mA Low Noise CMOS LDO Regulators 2.0.2 May 2021 1.3 MB
Application Notes AN200, Downloading and Installing CAD Symbols and Footprints with Ultra Librarian April 2019 1.2 MB
Product Flyers Power Management & Interface Products for Cable, Satellite and IP STB/Home Gateway March 2018 2 MB
Product Brochures Power Management Brochure October 2020 2.4 MB
Symbols & Footprints SP6203EM5-L-2-8/TR CAD File (.bxl) September 2018 81.7 KB
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Quality & RoHS

Part Number RoHS | Exempt RoHS Halogen Free REACH TSCA MSL Rating / Peak Reflow Package
SP6203EM5-L-2-8/TR N Y 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.

Parts & Purchasing

Part Number Pkg Code Min Temp Max Temp Status Suggested Replacement Buy Now PDN
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
SP6203EM5-2-5 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 SP6203EM5-L/TR
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 SP6203EM5-L-2-5/TR
SP6203EM5-L-2-5/TR SOT-23-5 -40 125 OBS SP6205ER-L/TR
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 SP6203EM5-L-2-8/TR
SP6203EM5-L-2-8/TR SOT-23-5 -40 125 EOL SPX3819M5-L/TR
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 SP6203EM5-L-3-0/TR
SP6203EM5-L-3-0/TR SOT-23-5 -40 125 OBS SP6205EM5-L-3-0/TR
SP6203EM5-L-3-3 SOT-23-5 -40 125 OBS SP6203EM5-L-3-3/TR
SP6203EM5-L-3-3/TR SOT-23-5 -40 125 OBS SP6205EM5-L-3-3/TR
SP6203EM5-L-ADJ SOT-23-5 -40 125 OBS
SP6203EM5-L/TR SOT-23-5 -40 125 OBS SP6205EM5-L/TR
SP6203EM5/TR SOT-23-5 -40 125 OBS
SP6203ER 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 SP6203ER-L/TR
SP6203ER-L-1-8 DFN8 2x3 -40 125 OBS SP6203ER-L-1-8/TR
SP6203ER-L-1-8/TR DFN8 2x3 -40 125 OBS SP6205ER-L-1-8/TR
SP6203ER-L-2-5 DFN8 2x3 -40 125 OBS SP6203EM5-L-2-5
SP6203ER-L-2-5/TR DFN8 2x3 -40 125 OBS SP6203EM5-L-2-5/TR
SP6203ER-L-2-7 DFN8 2x3 OBS
SP6203ER-L-2-7/TR DFN8 2x3 OBS
SP6203ER-L-2-8 DFN8 2x3 -40 125 OBS SP6203EM5-L-2-8
SP6203ER-L-2-8/TR DFN8 2x3 -40 125 OBS SP6203EM5-L-2-8/TR
SP6203ER-L-2-85 DFN8 2x3 -40 125 OBS SP6203EM5-L-2-85
SP6203ER-L-2-85/TR DFN8 2x3 -40 125 OBS SP6203EM5-L-2-85/TR
SP6203ER-L-3-0 DFN8 2x3 -40 125 OBS SP6203EM5-L-3-0
SP6203ER-L-3-0/TR DFN8 2x3 -40 125 OBS SP6203EM5-L-3-0/TR
SP6203ER-L-3-3 DFN8 2x3 -40 125 OBS SP6203EM5-L-3-3
SP6203ER-L-3-3/TR DFN8 2x3 -40 125 OBS SP6203EM5-L-3-3/TR
SP6203ER-L/TR DFN8 2x3 -40 125 OBS SP6205ER-L/TR
SP6203ER/TR DFN8 2x3 OBS
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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.


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


Distribution Date Description File
11/01/2023 To improve manufacturing efficiency, MaxLinear has qualified mold compound GE-1030S-CJ for use on the products listed above. There is no change to form, fit, function and reliability of the parts.
10/10/2023 Product Discontinuation Notice
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.

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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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