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Updated at 17/06/2025 10:30:15(UTC+8)

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Description

The LM317MDT is an adjustable 3-terminal Positive Voltage Regulator, capable of supplying in excess of 1.5A over a 1.2 to 37V output range. They are exceptionally easy to use and require only two external resistors to set the output voltage. Further, both line and load regulations are better than standard fixed regulators. Also, the LM317MDT is packaged in standard transistor packages which are easily mounted and handled. In addition to higher performance than fixed regulators, the LM117 series offers full overload protection available only in IC"s. Included on the chip are current limit, thermal overload protection and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected. Normally, no capacitors are needed unless the device is situated more than 6 inches from the input filter capacitors in which case an input bypass is needed.
Specified 1% output voltage tolerance
Specified maximum 0.01%/V line regulation
Specified 1.5A output current
Adjustable output down to 1.2V
Current limit constant with temperature
P+ Product enhancement tested
80dB Ripple rejection
Short-circuit protection for output
Device has limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

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LM317MDT Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Number of Pins	3 Pin
Case/Package	TO-252
Number of Outputs	1 Output
Output Voltage	1.2V ~ 37V
Output Current	500 mA
Number of Positions	3 Position
voltage rating	2.00 V
Input Voltage (Max)	40 V
Input Voltage (Min)	3 V
Output Voltage (Max)	37 V
Output Voltage (Min)	1.2 V
Output Current (Max)	1.5 A
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	0 ℃
	Show
Product Lifecycle Status	Active
Packaging	Each
RoHS	Non-Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
Mil-Spec	Yes
REACH SVHC Compliance Edition	2015/06/15

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