SPX3819

500mA Low-Noise LDO Voltage Regulator

Description

The SPX3819 is a positive voltage regulator with a low dropout voltage and low noise output. In addition, this device offers a very low ground current of 800μA at 100mA output. The SPX3819 has an initial tolerance of less than 1% max and a logic compatible on/off switched input. When disabled, power consumption drops to nearly zero. Other key features include reverse battery protection, current limit and thermal shutdown. The SPX3819 includes a reference bypass pin for optimal low noise output performance. With its very low output temperature coefficient, this device also makes a superior low power voltage reference.

The SPX3819 is an excellent choice for use in battery powered applications such as cordless telephones, radio control systems and portable computers. It is available in several fixed output voltage options or with an adjustable output voltage.

This device is offered in 8-pin NSOIC, 8-pin DFN and 5-pin SOT-23 packages.

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Features

  • Low noise: 40µV possible
  • High accuracy: 1%
  • Reverse battery protection
  • Low dropout: 340mV at full load
  • Low quiescent current: 90µA
  • Zero off-mode current
  • Fixed output: 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.3V, 5.0V
  • 5-pin SOT-23, 8-pin nSOIC and 8-pin 2 x 3 DFN packages

Documentation

Application

Design Tools

Packaging

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: Pin 1 at sprocket hole
  • Dimensions: mm
  • Length: 2
  • Width: 3
  • Thickness: 0.9
  • Lead Pitch: 0.5
NSOIC8
  • JEDEC Reference: MS-012
  • MSL Pb-Free: L1 @ 260ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 128.4ºC/W (std); 96.8ºC/W (fused)
  • Bulk Pack Style: Tube
  • Quantity per Bulk Pack: n/a
  • Quantity per Reel: 2500
  • Quantity per Tube: 98
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): 330 x 12 x 8
  • Tape & Reel Unit Orientation: Pin 1 at sprocket hole.
  • Dimensions: mm
  • Length: 4.90
  • Width: 3.90
  • Thickness: 1.65 max
  • Lead Pitch: 1.27
SOT-223-3
  • JEDEC Reference: TO-261
  • MSL Pb-Free: L1 @ 260ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 62.3ºC/W
  • Bulk Pack Style: Tube
  • Quantity per Bulk Pack: n/a
  • Quantity per Reel: 2500
  • Quantity per Tube: 78
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): 330 x 16 x 12
  • Tape & Reel Unit Orientation: Tab at sprocket hole.
  • Dimensions: mm
  • Length: 6.50
  • Width: 3.50
  • Thickness: 1.60
  • Lead Pitch: 2.30
SOT-23-5
  • 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: 1.15
  • Lead Pitch: 0.95
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-263-5
  • JEDEC Reference: TO-263
  • MSL Pb-Free: L3 @ 245ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 31.2ºC/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 max
  • Lead Pitch: 0.067

Parts & Purchasing

Part Number Pkg Code RoHS Min Temp Max Temp Status Buy Now Order Samples
SPX3819A1-3-3 DFN8 OBS
SPX3819A1-3-3/TR DFN8 OBS
SPX3819A1-L-3-3 DFN8 OBS
SPX3819M3-1-8 SOT-223-3 OBS
SPX3819M3-3-0 SOT-223-3 OBS
SPX3819M3-3-1 SOT-223-3 OBS
SPX3819M3-3-3 SOT-223-3 OBS
SPX3819M3-L-1-8 SOT-223-3 OBS
SPX3819M3-L-3-0 SOT-223-3 OBS
SPX3819M3-L-3-1 SOT-223-3 OBS
SPX3819M3-L-3-3 SOT-223-3 OBS
SPX3819M5 SOT-23-5 -40 125 OBS
SPX3819M5/TR SOT-23-5 -40 125 OBS
SPX3819M5-1-2 SOT-23-5 -40 125 OBS
SPX3819M5-1-2/TR SOT-23-5 -40 125 OBS
SPX3819M5-1-5 SOT-23-5 OBS
SPX3819M5-1-5/TR SOT-23-5 -40 125 OBS
SPX3819M5-1-8 SOT-23-5 -40 125 OBS
SPX3819M5-1-8/TR SOT-23-5 -40 125 OBS
SPX3819M5-2-5 SOT-23-5 -40 125 OBS
SPX3819M5-2-5/TR SOT-23-5 -40 125 OBS
SPX3819M5-2-5/TRR SOT-23-5 -40 125 OBS
SPX3819M5-3-0 SOT-23-5 -40 125 OBS
SPX3819M5-3-0/TR SOT-23-5 -40 125 OBS
SPX3819M5-3-1 SOT-23-5 OBS
SPX3819M5-3-1/TR SOT-23-5 OBS
SPX3819M5-3-3 SOT-23-5 -40 125 OBS
SPX3819M5-3-3/TR SOT-23-5 -40 125 OBS
SPX3819M5-5-0 SOT-23-5 -40 125 OBS
SPX3819M5-5-0/TR SOT-23-5 -40 125 OBS
SPX3819M5-L SOT-23-5 -40 125 OBS Suggested:
SPX3819M5-L/TR
SPX3819M5-L/TR SOT-23-5 -40 125 Active
SPX3819M5-L-1-2 SOT-23-5 -40 125 OBS Suggested:
SPX3819M5-L-1-2/TR
SPX3819M5-L-1-2/TR SOT-23-5 -40 125 Active
SPX3819M5-L-1-5 SOT-23-5 -40 125 OBS Suggested:
SPX3819M5-L-1-5/TR
SPX3819M5-L-1-5/TR SOT-23-5 -40 125 Active
SPX3819M5-L-1-8 SOT-23-5 -40 125 OBS Suggested:
SPX3819M5-L-1-8/TR
SPX3819M5-L-1-8/TR SOT-23-5 -40 125 Active
SPX3819M5-L-2-5 SOT-23-5 -40 125 OBS Suggested:
SPX3819M5-L-2-5/TR
SPX3819M5-L-2-5/TR SOT-23-5 -40 125 Active
SPX3819M5-L-3-0 SOT-23-5 -40 125 OBS Suggested:
SPX3819M5-L-3-0/TR
SPX3819M5-L-3-0/TR SOT-23-5 -40 125 Active
SPX3819M5-L-3-1 SOT-23-5 -40 125 OBS Suggested:
SPX3819M5-L
SPX3819M5-L-3-1/TR SOT-23-5 -40 125 OBS Suggested:
SPX3819M5-L/TR
SPX3819M5-L-3-3 SOT-23-5 -40 125 OBS
SPX3819M5-L-3-3/TR SOT-23-5 -40 125 Active
SPX3819M5-L-5-0 SOT-23-5 -40 125 OBS Suggested:
SPX3819M5-L-5-0/TR
SPX3819M5-L-5-0/TR SOT-23-5 -40 125 Active
SPX3819R2 DFN8 OBS
SPX3819R2-1-2 DFN8 -40 125 OBS
SPX3819R2-1-2/TR DFN8 OBS
SPX3819R2-1-5 DFN8 OBS
SPX3819R2-1-5/TR DFN8 OBS
SPX3819R2-1-8 DFN8 OBS
SPX3819R2-1-8/TR DFN8 OBS
SPX3819R2-2-5 DFN8 OBS
SPX3819R2-2-5/TR DFN8 OBS
SPX3819R2-3-0 DFN8 OBS
SPX3819R2-3-1 DFN8 OBS
SPX3819R2-3-3 DFN8 OBS
SPX3819R2-3-3/TR DFN8 OBS
SPX3819R2-5-0 DFN8 OBS
SPX3819R2-L DFN8 2x3 -40 125 OBS Suggested:
SPX3819R2-L/TR
SPX3819R2-L/TR DFN8 2x3 -40 125 Active
SPX3819R2-L-1-2 DFN8 -40 125 OBS Suggested:
SPX3819R2-L-1-2/TR
SPX3819R2-L-1-2/TR DFN8 2x3 -40 125 Active
SPX3819R2-L-1-5 DFN8 -40 125 OBS Suggested:
SPX3819R2-L
SPX3819R2-L-1-5/TR DFN8 -40 125 OBS Suggested:
SPX3819R2-L/TR
SPX3819R2-L-1-8 DFN8 2x3 -40 125 OBS Suggested:
SPX3819R2-L-1-8/TR
SPX3819R2-L-1-8/TR DFN8 2x3 -40 125 Active
SPX3819R2-L-2-5 DFN8 -40 125 OBS Suggested:
SPX3819R2-L
SPX3819R2-L-2-5/TR DFN8 -40 125 OBS Suggested:
SPX3819R2-L/TR
SPX3819R2-L-3-0 DFN8 OBS
SPX3819R2-L-3-1 DFN8 OBS
SPX3819R2-L-3-3 DFN8 -40 125 OBS Suggested:
SPX3819R2-L
SPX3819R2-L-3-3/TR DFN8 -40 125 OBS Suggested:
SPX3819R2-L/TR
SPX3819R2-L-5-0 DFN8 -40 125 OBS Suggested:
SPX3819R2-L
SPX3819R2-L-5-0/TR DFN8 -40 125 OBS Suggested:
SPX3819R2-L/TR
SPX3819S SPX3819S -40 125 OBS
SPX3819S/TR NSOIC8 OBS
SPX3819S-1-8 NSOIC8 -40 125 OBS
SPX3819S-1-8/TR NSOIC8 OBS
SPX3819S-2-5 NSOIC8 -40 125 OBS
SPX3819S-2-5/TR NSOIC8 -40 125 OBS
SPX3819S-3-0 NSOIC8 OBS
SPX3819S-3-0/TR NSOIC8 OBS
SPX3819S-3-1 NSOIC8 OBS
SPX3819S-3-1/TR NSOIC8 OBS
SPX3819S-3-3 NSOIC8 -40 125 OBS
SPX3819S-3-3/TR NSOIC8 OBS
SPX3819S-5-0 NSOIC8 -40 125 OBS
SPX3819S-5-0/TR NSOIC8 OBS
SPX3819S-L NSOIC8 -40 125 OBS Suggested:
SPX3819S-L/TR
SPX3819S-L/TR NSOIC8 -40 125 Active
SPX3819S-L-1-2 NSOIC8 -40 125 OBS Suggested:
SPX3819S-L-1-2/TR
SPX3819S-L-1-2/TR NSOIC8 -40 125 Active
SPX3819S-L-1-5 NSOIC8 -40 125 OBS Suggested:
SPX3819S-L-1-5/TR
SPX3819S-L-1-5/TR NSOIC8 -40 125 Active
SPX3819S-L-1-8 NSOIC8 -40 125 OBS Suggested:
SPX3819S-L-1-8/TR
SPX3819S-L-1-8/TR NSOIC8 -40 125 Active
SPX3819S-L-2-5 NSOIC8 -40 125 OBS Suggested:
SPX3819S-L-2-5/TR
SPX3819S-L-2-5/TR NSOIC8 -40 125 Active
SPX3819S-L-3-0 NSOIC8 -40 125 OBS Suggested:
SPX3819S-L
SPX3819S-L-3-0/TR NSOIC8 -40 125 OBS Suggested:
SPX3819S-L/TR
SPX3819S-L-3-1 NSOIC8 -40 125 OBS Suggested:
SPX3819S-L
SPX3819S-L-3-1/TR NSOIC8 -40 125 OBS Suggested:
SPX3819S-L/TR
SPX3819S-L-3-3 NSOIC8 -40 125 OBS Suggested:
SPX3819S-L-3-3/TR
SPX3819S-L-3-3/TR NSOIC8 -40 125 Active
SPX3819S-L-5-0 NSOIC8 -40 125 OBS Suggested:
SPX3819S-L-5-0/TR
SPX3819S-L-5-0/TR NSOIC8 -40 125 Active
SPX3819T5-1-8 TO-263-5 OBS
SPX3819T5-1-8/TR TO-263-5 OBS
SPX3819T5-3-0 TO-263-5 OBS
SPX3819T5-3-1 TO-263-5 OBS
SPX3819T5-3-3 TO-263-5 OBS
SPX3819T5-3-3/TR TO-263-5 OBS
SPX3819T5-L-1-8 TO-263-5 OBS
SPX3819T5-L-3-0 TO-263-5 OBS
SPX3819T5-L-3-1 TO-263-5 OBS
SPX3819T5-L-3-3 TO-263-5 OBS
SPX3819U TO-220-3 OBS
SPX3819U-1-8 TO-220-3 OBS
SPX3819U-2-5 TO-220-3 OBS
SPX3819U-3-0 TO-220-3 OBS
SPX3819U-3-1 TO-220-3 OBS
SPX3819U-3-3 TO-220-3 OBS
SPX3819U-5-0 TO-220-3 OBS
SPX3819U-L TO-220-3 OBS
SPX3819U-L-1-8 TO-220-3 OBS
SPX3819U-L-2-5 TO-220-3 OBS
SPX3819U-L-3-0 TO-220-3 OBS
SPX3819U-L-3-1 TO-220-3 OBS
SPX3819U-L-3-3 TO-220-3 OBS
SPX3819U-L-5-0 TO-220-3 OBS
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.
Distribution Date Description File
02/15/2017 Qualification of alternate assembly subcon, ANST. PCN 16-1149-02 ANST-1033.pdf
01/27/2017 Qualification of alternate assembly subcon, ANST, China. PCN 16-1145-04-01 ANST-1033.pdf
01/12/2017 Standard tape and reel quantity will change from 2500 pieces to 3000 pieces for SOT23-3L/5L/6L. PCN 16-1146-02 Reel size change-1033.pdf
10/06/2016 Qualification of alternate assembly subcon, JCET. PCN 16-0313-02 JCET-1033.pdf
07/26/2016 Product discontinuation notification. Discontinued. PDN 16-0626-01-1033.pdf
04/13/2016 Qualification of alternate assembly subcon, JCET. PCN 16-0207-02 JCET-1033.pdf
08/29/2014 Alternate Assembly Site. Addition of JCET for assembly using copper wire or gold wire bonding and standard reel quantity changing from 2500 to 3000 pieces. PCN_13-1146-02-1-1033.pdf
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. PCN_13-0522-04-1033.pdf
07/30/2013 Addition of an alternate qualified assembly supplier, Carsem (Malaysia) for SOT23 package using copper wire bonding. Material Change. PCN_13-0521-03a-1033.pdf
07/02/2013 Qualification of an alternate qualified assembly supplier, ASE Chung-Li (Taiwan) for the 8L NSOIC package using copper wire bonding. Material change and alternate assembly supplier qualified. PCN_12-1107-01-1033.pdf
09/29/2011 Product marking change for products in 2x3mm, 8ld DFN. To improve product traceability. PCN_11-0915-01-1033.pdf
12/07/2009 Enhancement of NSOIC 8, NSOIC14 and NSOIC16 packages to Green (halogen-free) via Mold Compound & Die Attach Material. Enhance packages to be Green (halogen-free). PCN_09-0911-01-1033.pdf
03/04/2009 Notice of Obsolescence Discontinued by Exar Corporation due to low market demand PDN_090304-01-1033.pdf
08/12/2008 Datasheet Change: Line Regulation Product Re-Characterization. pcn_08-0812-02_spx3819-1033.pdf
12/05/2007 Announcing the re-activation of previously announced discontinued products The previously announced discontinued products listed above are being re-activated due to continuing Customer demand. PCN_07-1205-01-1033.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-06-0130-57-1033.pdf