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NCV317M

ON Semiconductor
Part Number NCV317M
Manufacturer ON Semiconductor
Description Positive Voltage Regulator
Published Jul 28, 2015
Detailed Description LM317M, NCV317MA, NCV317M Voltage Regulator - Adjustable Output, Positive 500 mA The LM317M is an adjustable three−termi...
Datasheet PDF File NCV317M PDF File

NCV317M
NCV317M

Overview
LM317M, NCV317MA, NCV317M Voltage Regulator - Adjustable Output, Positive 500 mA The LM317M is an adjustable three−terminal positive voltage regulator capable of supplying in excess of 500 mA over an output voltage range of 1.
2 V to 37 V.
This voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage.
Further, it employs internal current limiting, thermal shutdown and safe area compensation, making it essentially blow−out proof.
The LM317M serves a wide variety of applications including local, on−card regulation.
This device also makes an especially simple adjustable switching regulator, a programmable output regulator, or by connecting a fixed resistor between the adjustment and output, the LM317M can be used as a precision current regulator.
Features • Output Current in Excess of 500 mA • Output Adjustable between 1.
2 V and 37 V • Internal Thermal Overload Protection • Internal Short Circuit Current Limiting • Output Transistor Safe−Area Compensation • Floating Operation for High Voltage Applications • Eliminates Stocking Many Fixed Voltages • NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable • These are Pb−Free Devices Vin Vin LM317M Vout Vout * Cin 0.
1mF IAdj Adjust R1 240 ** + CO 1.
0mF R2  * = Cin is required if regulator is located an appreciable distance from power supply filter.
** = CO is not needed for stability, however, it does improve transient response.
ǒ ǓVout + 1.
25   V   1 ) R2 R1 ) IAdj  R2 Since IAdj is controlled to less than 100 mA, the error associated with this term is negligible in most applications.
Figure 1.
Simplified Application © Semiconductor Components Industries, LLC, 2014 October, 2019 − Rev.
26 1 www.
onsemi.
com Heatsink surface connected to Pin 2 TO−220AB T SUFFIX CASE 221AB SOT−223 ST SUFFIX CASE 318E 12 3 12 3 DPAK DT SUFFIX CASE 369C 4 12 3 Heatsink Surface (show...


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