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LM317AEMP by:
Texas Instruments

1.5-A, 40-V, adjustable linear voltage regulator with high-accuracy 4-SOT-223 -40 to 125

Part Details for LM317AEMP by Texas Instruments

Results Overview of LM317AEMP 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.

LM317AEMP Information

LM317AEMP 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 LM317AEMP

Part # Distributor Description Stock Price Buy
Bristol Electronics   573
RFQ
DISTI # SMC-LM317AEMP
Sensible Micro Corporation Ic Reg Ldo Adj 1A Sot223 RoHS: Not Compliant Min Qty: 25 Lead time: 0 Weeks, 1 Days Date Code: 2013+ Container: Cut Tape 8
RFQ
Win Source Electronics IC REG LINEAR ADJ 1A SOT223-4 52345
  • 155 $0.3321
  • 325 $0.3107
  • 500 $0.3000
  • 720 $0.2786
  • 935 $0.2679
  • 1,170 $0.2572
$0.2572 / $0.3321 Buy Now

US Tariff Estimator: LM317AEMP by Texas Instruments

Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.

LM317AEMP
Texas Instruments
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Part Details for LM317AEMP

LM317AEMP CAD Models

LM317AEMP Part Data Attributes

LM317AEMP Texas Instruments
Buy Now Datasheet
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LM317AEMP Texas Instruments 1.5-A, 40-V, adjustable linear voltage regulator with high-accuracy 4-SOT-223 -40 to 125
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 LM317AEMP

This table gives cross-reference parts and alternative options found for LM317AEMP. 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 LM317AEMP, 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
LM317EMPX/NOPB Texas Instruments $1.3083 1.5-A, 40-V, adjustable linear voltage regulator 4-SOT-223 0 to 125 LM317AEMP vs LM317EMPX/NOPB
LM317EMP/NOPB Texas Instruments $2.7851 1.5-A, 40-V, adjustable linear voltage regulator 4-SOT-223 0 to 125 LM317AEMP vs LM317EMP/NOPB
LM317EMPX Texas Instruments Check for Price 1.2 V-37V ADJUSTABLE POSITIVE REGULATOR, PDSO3, SOT-223, 4 PIN LM317AEMP vs LM317EMPX
LM317EMP/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 LM317AEMP vs LM317EMP/NOPB
Part Number Manufacturer Composite Price Description Compare
LM317MSTT3G onsemi $0.2081 Linear Voltage Regulator, 500 mA, High PSRR, Adjustable, Positive Vout: 4%; TJ = 0°C to 125°C, SOT-223 (TO-261) 4 LEAD, 4000-REEL LM317AEMP vs LM317MSTT3G
LM317MDCYR Texas Instruments $0.3647 500-mA, 40-V, adjustable linear voltage regulator 4-SOT-223 -40 to 125 LM317AEMP vs LM317MDCYR
LM317AEMPX/NOPB Texas Instruments $1.8286 1.5-A, 40-V, adjustable linear voltage regulator with high-accuracy 4-SOT-223 -40 to 125 LM317AEMP vs LM317AEMPX/NOPB
LM317AEMP/NOPB Texas Instruments $2.5121 1.5-A, 40-V, adjustable linear voltage regulator with high-accuracy 4-SOT-223 -40 to 125 LM317AEMP vs LM317AEMP/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 LM317AEMP vs LM317AEMPX
LM317AEMPX Texas Instruments Check for Price 1.5-A, 40-V, adjustable linear voltage regulator with high-accuracy 4-SOT-223 LM317AEMP vs LM317AEMPX
LM317D2TXM Rochester Electronics LLC Check for Price 1.2 V-37V ADJUSTABLE POSITIVE REGULATOR, PSSO3, LEAD FREE, D2PAK-3 LM317AEMP vs LM317D2TXM
LM317MSTT3 onsemi Check for Price Linear Voltage Regulator, 500 mA, High PSRR, Adjustable, Positive, SOT-223 (TO-261) 4 LEAD, 4000-REEL LM317AEMP vs LM317MSTT3
LM317MBSTT1 onsemi Check for Price 1.2 V-37V ADJUSTABLE POSITIVE REGULATOR, PDSO4, PLASTIC, SOT-223, 4 PIN LM317AEMP vs LM317MBSTT1
IFX1117MEV Infineon Technologies AG Check for Price Adjustable Positive Standard Regulator, PDSO4, GREEN, PLASTIC, SOT-223, 4 PIN LM317AEMP vs IFX1117MEV
equivalents icon

LM317AEMP Related Parts

LM317AEMP Frequently Asked Questions (FAQ)

  • The maximum input voltage that can be applied to the LM317AEMP is 40V. Exceeding this voltage can cause damage to the device.

  • The output voltage of the LM317AEMP can be adjusted by using a resistive divider network between the output and adjustment pins. The output voltage is determined by the ratio of the resistors and the reference voltage (1.25V).

  • The LM317AEMP 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.

  • The LM317AEMP is rated for operation up to 125°C. However, the device's performance and reliability may degrade at high temperatures. It's recommended to derate the device's power dissipation and output current at high temperatures.

  • To protect the LM317AEMP from input voltage transients, a transient voltage suppressor (TVS) diode can be used between the input and ground pins. This helps to clamp the input voltage and prevent damage to the device.

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