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1.5-A, 40-V, adjustable linear voltage regulator with high-accuracy 4-SOT-223 -40 to 125
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/NOPB 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.
Part # | Manufacturer | Description | Datasheet |
---|---|---|---|
DS96174CN/NOPB | Rochester Electronics LLC | DS96174 - Line Driver, 4 Func, 4 Driver, BIPolar, PDIP16 | |
LM611IM/NOPB | Rochester Electronics LLC | LM611IM - Operational Amplifier, 7000uV Offset-Max, BIPolar |
Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
33AH4143
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Newark | V Reg, 1A, 0.01%, 1.2-37V, 4Sot223, Fixed Output Voltage Nom.:-, Adjustable Output Voltage Min:1.2V, Adjustable Output Voltage Max:37V, Input Voltage Min:4.2V, Input Voltage Max:40V, Product Range:-, Output Current:1A, Output Rohs Compliant: Yes |Texas Instruments LM317AEMP/NOPB RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Cut Tape | 0 |
|
$2.2500 / $2.9200 | Buy Now |
DISTI #
LM317AEMP/NOPBCT-ND
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DigiKey | IC REG LIN POS ADJ 1.5A SOT223-4 Min Qty: 1 Lead time: 6 Weeks Container: Digi-Reel®, Cut Tape (CT), Tape & Reel (TR) |
14674 In Stock |
|
$1.2783 / $2.5300 | Buy Now |
DISTI #
926-LM317AEMP/NOPB
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Mouser Electronics | Linear Voltage Regulators 3-TERMINAL ADJ REG A 926-LM317AEMPX/NOPB RoHS: Compliant | 15644 |
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$1.2600 / $2.5300 | Buy Now |
DISTI #
J56:1989_00015053
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Arrow Electronics | Standard Regulator Pos 1.2V to 37V 1.5A 4-Pin(3+Tab) SOT-223 T/R RoHS: Compliant Min Qty: 1000 Package Multiple: 1000 Lead time: 6 Weeks Date Code: 2411 | Europe - 95000 |
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$1.2950 | Buy Now |
DISTI #
V72:2272_07271208
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Arrow Electronics | Standard Regulator Pos 1.2V to 37V 1.5A 4-Pin(3+Tab) SOT-223 T/R RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 6 Weeks Date Code: 2311 Container: Cut Strips | Americas - 729 |
|
$1.2950 / $2.4940 | Buy Now |
DISTI #
76475515
|
Verical | Standard Regulator Pos 1.2V to 37V 1.5A 4-Pin(3+Tab) SOT-223 T/R RoHS: Compliant Min Qty: 5 Package Multiple: 1 Date Code: 2311 | Americas - 729 |
|
$1.2950 / $2.4940 | Buy Now |
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Bristol Electronics | 3217 |
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RFQ | ||
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Bristol Electronics | 124 |
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RFQ | ||
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Quest Components | IC,VOLT REGULATOR,ADJUSTABLE,+1.2 TO +37V,BIPOLAR,SOT-223,3PIN,PLASTIC,LEAD FREE | 4000 |
|
$0.8583 / $2.0435 | Buy Now |
|
Quest Components | IC,VOLT REGULATOR,ADJUSTABLE,+1.2 TO +37V,BIPOLAR,SOT-223,3PIN,PLASTIC,LEAD FREE | 2400 |
|
$1.2261 / $3.2696 | Buy Now |
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LM317AEMP/NOPB
Texas Instruments
Buy Now
Datasheet
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Compare Parts:
LM317AEMP/NOPB
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 | Yes | |
Part Life Cycle Code | Active | |
Ihs Manufacturer | TEXAS INSTRUMENTS INC | |
Part Package Code | SOT-223 | |
Package Description | GREEN, SOT-223, 4 PIN | |
Pin Count | 4 | |
Reach Compliance Code | compliant | |
ECCN Code | EAR99 | |
HTS Code | 8542.39.00.01 | |
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 | e3 | |
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 | 4 | |
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 | |
Output Voltage1-Nom | 37 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 | Matte Tin (Sn) | |
Terminal Form | GULL WING | |
Terminal Pitch | 2.3 mm | |
Terminal Position | DUAL | |
Time@Peak Reflow Temperature-Max (s) | 30 | |
Voltage Tolerance-Max | 5% | |
Width | 3.56 mm |
This table gives cross-reference parts and alternative options found for LM317AEMP/NOPB. 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/NOPB, 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 | $1.4556 | 1.5-A, 40-V, adjustable linear voltage regulator 4-SOT-223 0 to 125 | LM317AEMP/NOPB vs LM317EMPX/NOPB |
LM317EMPX/NOPB | Rochester Electronics LLC | Check for Price | 1.2 V-37V ADJUSTABLE POSITIVE REGULATOR, PDSO4, ROHS COMPLIANT, SOT-223, 4 PIN | LM317AEMP/NOPB 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 | LM317AEMP/NOPB vs LM317AEMPX |
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/NOPB vs LM317EMP/NOPB |
The maximum input voltage is 40V, but it's recommended to keep it below 35V for reliable operation.
The output voltage can be adjusted by using a resistive divider network between the output and adjustment pins. The formula to calculate the output voltage is Vout = 1.25 x (1 + R2/R1).
The LM317AEMP/NOPB requires a minimum load current of 3.5mA to maintain regulation. If the load current is less than this, an additional resistor can be added to ensure proper operation.
The LM317AEMP/NOPB is rated for operation up to 125°C, but the output current and voltage regulation may degrade at high temperatures. It's recommended to derate the output current and voltage according to the temperature derating curve in the datasheet.
A capacitor (e.g., 10uF) can be added between the input and ground to filter out voltage transients. Additionally, a TVS diode or a zener diode can be used to clamp the input voltage to prevent damage from voltage spikes.