Datasheets
LM317AEMPX by:

1.5-A, 40-V, adjustable linear voltage regulator with high-accuracy 4-SOT-223

Part Details for LM317AEMPX by Texas Instruments

Results Overview of LM317AEMPX by Texas Instruments

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

LM317AEMPX Information

LM317AEMPX by Texas Instruments is a Linear Regulator IC.
Linear Regulator ICs are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Price & Stock for LM317AEMPX

Part # Distributor Description Stock Price Buy
Quest Components 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, PDSO3 744
  • 1 $3.4388
  • 378 $1.4185
  • 706 $1.2896
$1.2896 / $3.4388 Buy Now
Quest Components 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, PDSO3 107
  • 1 $6.0000
  • 18 $4.0000
  • 64 $3.7000
$3.7000 / $6.0000 Buy Now
Quest Components 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, PDSO3 32
  • 1 $3.4388
  • 2 $2.5791
  • 11 $2.1493
$2.1493 / $3.4388 Buy Now
ComSIT USA AVAILABLE EU 538
RFQ
DISTI # SMC-LM317AEMPX
Sensible Micro Corporation AS6081 Certified Vendor, 1 Yr Warranty RoHS: Not Compliant Min Qty: 25 Lead time: 2 Weeks, 0 Days 1434
RFQ
Cytech Systems Limited IC REG LIN POS ADJ 1.5A SOT223-4 2000
RFQ
Vyrian Regulators 658
RFQ
Win Source Electronics IC REG LINEAR ADJ 1A SOT223-4 52010
  • 65 $0.5381
  • 135 $0.5035
  • 210 $0.4861
  • 300 $0.4514
  • 385 $0.4340
  • 480 $0.4167
$0.4167 / $0.5381 Buy Now

Part Details for LM317AEMPX

LM317AEMPX CAD Models

LM317AEMPX Part Data Attributes

LM317AEMPX Texas Instruments
Buy Now Datasheet
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LM317AEMPX Texas Instruments 1.5-A, 40-V, adjustable linear voltage regulator with high-accuracy 4-SOT-223
Pbfree Code Yes
Rohs Code No
Part Life Cycle Code Obsolete
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code SOT-223
Package Description SOT-223, 4 PIN
Pin Count 4
Reach Compliance Code not_compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Date Of Intro 1999-05-27
Samacsys Manufacturer Texas Instruments
Adjustability ADJUSTABLE
Dropout Voltage1-Nom 2.25 V
Input Voltage-Max 40 V
Input Voltage-Min 3 V
Input-Output Voltage Differential-Max 40 V
Input-Output Voltage Differential-Min 3 V
JESD-30 Code R-PDSO-G3
JESD-609 Code e0
Length 6.5 mm
Line Regulation-Max (%/V) 0.02
Load Regulation-Max(%) 1%
Moisture Sensitivity Level 1
Number of Functions 1
Number of Outputs 1
Number of Terminals 3
Operating Temperature TJ-Max 125 °C
Operating Temperature TJ-Min -40 °C
Operating Temperature-Max 125 °C
Operating Temperature-Min -40 °C
Output Current1-Max 1.5 A
Output Voltage1-Max 37 V
Output Voltage1-Min 1.2 V
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Equivalence Code SOT-223
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Packing Method TR
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Regulator Type ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR
Seated Height-Max 1.8 mm
Surface Mount YES
Technology BIPOLAR
Terminal Finish Tin/Lead (Sn/Pb)
Terminal Form GULL WING
Terminal Pitch 2.3 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED
Voltage Tolerance-Max 5%
Width 3.56 mm

Alternate Parts for LM317AEMPX

This table gives cross-reference parts and alternative options found for LM317AEMPX. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LM317AEMPX, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
LM317EMP/NOPB Texas Instruments $0.4695 1.5-A, 40-V, adjustable linear voltage regulator 4-SOT-223 0 to 125 LM317AEMPX vs LM317EMP/NOPB
LM317EMP Texas Instruments Check for Price 1.5-A, 40-V, adjustable linear voltage regulator 4-SOT-223 0 to 125 LM317AEMPX vs LM317EMP
LM317AEMPX/NOPB Texas Instruments Check for Price 1.5-A, 40-V, adjustable linear voltage regulator with high-accuracy 4-SOT-223 -40 to 125 LM317AEMPX vs LM317AEMPX/NOPB
Part Number Manufacturer Composite Price Description Compare
LM317MDCYR Texas Instruments $0.3357 500-mA, 40-V, adjustable linear voltage regulator 4-SOT-223 -40 to 125 LM317AEMPX vs LM317MDCYR
LM317MDCY Texas Instruments $0.5950 500-mA, 40-V, adjustable linear voltage regulator 4-SOT-223 -40 to 125 LM317AEMPX vs LM317MDCY
LM317AEMP Texas Instruments $0.9675 1.5-A, 40-V, adjustable linear voltage regulator with high-accuracy 4-SOT-223 -40 to 125 LM317AEMPX vs LM317AEMP
LM317EMPX/NOPB Texas Instruments $1.4556 1.5-A, 40-V, adjustable linear voltage regulator 4-SOT-223 0 to 125 LM317AEMPX vs LM317EMPX/NOPB
LM317AEMPX National Semiconductor Corporation Check for Price IC VREG 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, PDSO3, SOT-223, 4 PIN, Adjustable Positive Single Output Standard Regulator LM317AEMPX vs LM317AEMPX
LM317EMPX/NOPB National Semiconductor Corporation Check for Price IC VREG 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, PDSO4, ROHS COMPLIANT, SOT-223, 4 PIN, Adjustable Positive Single Output Standard Regulator LM317AEMPX vs LM317EMPX/NOPB
LM317MBSTT1 onsemi Check for Price 1.2 V-37V ADJUSTABLE POSITIVE REGULATOR, PDSO4, PLASTIC, SOT-223, 4 PIN LM317AEMPX vs LM317MBSTT1
LM317MSTT3 onsemi Check for Price Linear Voltage Regulator, 500 mA, High PSRR, Adjustable, Positive, SOT-223 (TO-261) 4 LEAD, 4000-REEL LM317AEMPX vs LM317MSTT3
LM317D2TXM Rochester Electronics LLC Check for Price 1.2 V-37V ADJUSTABLE POSITIVE REGULATOR, PSSO3, LEAD FREE, D2PAK-3 LM317AEMPX vs LM317D2TXM
IFX1117MEV Infineon Technologies AG Check for Price Adjustable Positive Standard Regulator, PDSO4, GREEN, PLASTIC, SOT-223, 4 PIN LM317AEMPX vs IFX1117MEV

LM317AEMPX Related Parts

LM317AEMPX Frequently Asked Questions (FAQ)

  • The maximum input voltage that can be applied to the LM317AEMPX is 40V. Exceeding this voltage can cause damage to the device.

  • To ensure stability and prevent oscillations, a minimum output capacitance of 1uF is recommended, and the input capacitor should be at least 10uF. Additionally, the output voltage should be decoupled with a capacitor of at least 10uF.

  • The LM317AEMPX requires a minimum load current of 3.5mA to regulate properly. If the load current is less than this, the output voltage may not be regulated accurately.

  • No, the LM317AEMPX is designed to regulate positive voltages only. It is not suitable for regulating negative voltages.

  • The output voltage of the LM317AEMPX can be adjusted by using a resistive divider network between the output and the adjust pin. The output voltage is determined by the ratio of the resistors in the divider network.

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