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1.5-A, 40-V, adjustable linear voltage regulator 4-SOT-223 0 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.
LM317DCYG3 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 # | Distributor | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
DISTI #
296-36104-5-ND
|
DigiKey | IC REG LIN POS ADJ 1.5A SOT223-4 Min Qty: 1 Lead time: 6 Weeks Container: Tube |
2447 In Stock |
|
$0.5527 / $1.1700 | Buy Now |
DISTI #
595-LM317DCYG3
|
Mouser Electronics | Linear Voltage Regulators 3Pin 1.5A Adj Vltg R eg ALT 595-LM317DCY RoHS: Compliant | 1171 |
|
$0.5350 / $1.1700 | Buy Now |
|
Vyrian | Regulators | 2181 |
|
RFQ | |
|
Win Source Electronics | IC REG LINEAR ADJ 1.5A SOT223-4 | 47950 |
|
$0.1347 / $0.1739 | Buy Now |
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LM317DCYG3
Texas Instruments
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Datasheet
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LM317DCYG3
Texas Instruments
1.5-A, 40-V, adjustable linear voltage regulator 4-SOT-223 0 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, PLASTIC, 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 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-G4 | |
JESD-609 Code | e3 | |
Length | 6.5 mm | |
Line Regulation-Max (%/V) | 0.07 | |
Load Regulation-Max(%) | 1.5% | |
Moisture Sensitivity Level | 2 | |
Number of Functions | 1 | |
Number of Outputs | 1 | |
Number of Terminals | 4 | |
Operating Temperature TJ-Max | 125 °C | |
Operating Temperature TJ-Min | ||
Operating Temperature-Max | 125 °C | |
Operating Temperature-Min | ||
Output Current1-Max | 1.5 A | |
Output Voltage1-Max | 37 V | |
Output Voltage1-Min | 1.25 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 | TUBE | |
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 | 3.5 mm |
This table gives cross-reference parts and alternative options found for LM317DCYG3. 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 LM317DCYG3, 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 |
---|---|---|---|---|
LM317DCYRG3 | Texas Instruments | Check for Price | 1.5-A, 40-V, adjustable linear voltage regulator 4-SOT-223 0 to 125 | LM317DCYG3 vs LM317DCYRG3 |
LM317DCYR | Texas Instruments | $0.2657 | 1.5-A, 40-V, adjustable linear voltage regulator 4-SOT-223 0 to 125 | LM317DCYG3 vs LM317DCYR |
The LM317DCYG3 can handle input voltages up to 40V, but it's recommended to keep the input voltage at least 3V higher than the output voltage to ensure proper regulation.
The output voltage of the LM317DCYG3 can be adjusted by using a resistor divider network between the output and adjustment pins. The formula to calculate the output voltage is Vout = 1.25 x (1 + R2/R1), where R1 and R2 are the resistors in the divider network.
The LM317DCYG3 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 LM317DCYG3 is rated for operation up to 125°C, but its performance may degrade at high temperatures. It's recommended to derate the output current and voltage at high temperatures to ensure reliable operation.
To protect the LM317DCYG3 from input voltage transients, it's recommended to use a voltage clamp, such as a zener diode or a transient voltage suppressor (TVS), between the input and ground pins.