Precision Adjustable Shunt Regulator


Information Precision Adjustable Shunt Regulator
Package SOT23-5
Temperature Range (°C) -40 to 125
Reference Voltage Adjustable, Fixed
VOUT (V) -
VOUT Adj MIN (V) 1.24
VOUT Adj MAX (V) 18
Operating Current (MAX) (mA) 100
Operating Current (MIN) (mA) 0.1
IQ (µA) 0.15
Initial Accuracy (%) 0.5
IREF (µA) 0.15
Temperature Coefficient (ppm/°C) 20
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The XRP431L is a three-terminal adjustable shunt regulator, providing highly precise band gap reference.

The XRP431L acts as an open-loop error amplifier with a 1.24V temperature compensated reference. The XRP431L has thermal stability, wide operating current of 100mA and broad temperature range of -40°C to 125°C, making it suitable for a variety of applications which require a low-cost, high performance solution. The XRP431L tolerance of 0.5% is proven to be sufficient to overcome all other errors in the system to virtually eliminate the need for trimming in the power supply manufacturer's assembly line and contribute a significant cost savings. The output voltage may be adjusted to any value between VREF and 18 volts with two external resistors.

The XRP431L is available in a RoHS compliant, green halogen free 5-pin SOT-23 package.

  • Precise output voltage
    • 1.24V to 18V adjustable voltage range
  • Wide operation current
    • 0.1mA to 100mA
  • 20ppm/°C low temperature coefficient
  • Extend temperature range
    • -40°C to +125°C
  • RoHS compliant, green halogen free 5-pin SOT-23 package

  • Charger
  • Switching power supplies
  • Graphics card
  • Monitors, VCR, TV

Documentation & Design Tools

Type Title Version Date File Size
Data Sheets XRP431L Precision Adjustable Shunt Regulator 1.2.0 September 2010 250.6 KB
Application Notes AN200, Downloading and Installing CAD Symbols and Footprints with Ultra Librarian April 2019 1.2 MB
Product Brochures Power Management Brochure October 2020 2.4 MB
Symbols & Footprints XRP431LES5TRR3-F 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
XRP431LES5TRR3-F N Y Y Y Y L3 / 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 Buy Now Order Samples
XRP431LES5TRR3-F SOT-23-5 OPT3 -40 125 Active Order

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
SOT-23-5 OPT3
  • JEDEC Reference: MO-178
  • MSL Pb-Free: L3 @ 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
02/19/2016 Material change. Qualified copper wire bonding assembly.
01/09/2015 Alternate Assembly Site Change. Qualified JCET ChuZhou for assembly of the listed parts.

FAQs & Support

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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.