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NCV317M Dataheets PDF



Part Number NCV317M
Manufacturers ON Semiconductor
Logo ON Semiconductor
Description Positive Voltage Regulator
Datasheet NCV317M DatasheetNCV317M Datasheet (PDF)

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 .

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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 (shown as terminal 4 in case outline drawing) is connected to Pin 2. PIN ASSIGNMENT 1 Adjust 2 Vout 3 Vin ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 10 of this data sheet. DEVICE MARKING INFORMATION See general marking information in the device marking section on page 11 of this data sheet. Publication Order Number: LM317M/D LM317M, NCV317MA, NCV317M MAXIMUM RATINGS (TA = 25°C, unless otherwise noted.) Rating Symbol Value Unit Input−Output Voltage Differential VI−VO 40 Vdc Power Dissipation (Package Limitation) (Note 1) Plastic Package, T Suffix, Case 221A TA = 25°C Thermal Resistance, Junction−to−Air Thermal Resistance, Junction−to−Case Plastic Package, DT Suffix, Case 369C PD Internally Limited qJA 70 °C/W qJC 5.0 °C/W TA = 25°C Thermal Resistance, Junction−to−Air Thermal Resistance, Junction−to−Case Plastic Package, ST Suffix, Case 318E PD Internally Limited qJA 92 °C/W qJC 5.0 °C/W TA = 25°C Thermal Resistance, Junction−to−Air Thermal Resistance, Junction−to−Case PD Internally Limited qJA 245 °C/W qJC 15 °C/W Maximum Junction Temperature TJMAX +150 °C Storage Temperature Range Tstg − 65 to +150 °C Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. Figure 25 provides thermal resistance versus PC board pad size. ELECTRICAL CHARACTERISTICS (VI − VO = 5.0 V; IO = 0.1 A, TJ = Tlow to Thigh (Note 2), unless otherwise noted.) LM317M/LM317MB/NCV317MB Characteristics Figure Symbol Min Typ Max Unit Line Regulation (Note 3) (TA = 25°C, 3.0 V ≤ VI − VO ≤ 40 V) 3 Regline − 0.01 0.04 %/V Load Regulation (Note 3) TA = 25°C, 10 mA ≤ IO ≤ 0.5 A VO ≤ 5.0 V VO ≥ 5.0 V 4 Regload − − 5.0 25 mV 0.1 0.5 % VO Adjustment Pin Current 5 IAdj − 50 100 mA Adjustment Pin Current Change 2.5 V ≤ VI − VO ≤ 40 V, 10 mA ≤ IL ≤ 0.5 A, PD ≤ Pmax 3, 4 DIAdj − 0.2 5.0 mA Reference Voltage 3.0 V ≤ VI − VO ≤ 40 V, 10 mA ≤ IL ≤ 0.5 A, PD ≤ Pmax 5 Vref 1.20 1.25 1.30 V Line Regulation 3.0 V ≤ VI−VO ≤ 40 V (Note 3) 3 Regline − 0.02 0.07 %/V Load Regulation 10 mA ≤ IO ≤ 0.5 A (Note 3) VO ≤ 5.0 V VO ≥ 5.0 V 4 Regload − − 20 70 mV 0.3 1.5 % VO Temperature Stability (Tlow ≤ TJ ≤ Thigh) 5 TS − 0.7 − % VO Minimum Load Current to Maintain Regulation (VI − VO = 40 V) 5 ILmin − 3.5 10 mA Maximum Output Current VI − VO ≤ 15 V, PD ≤ Pmax VI − VO = 40 V, PD ≤ Pmax, TA = 25°C 5 Imax 0.5 0.15 0.9 0.25 A − − RMS Noise, % of VO (TA = 25°C, 10 Hz ≤ f ≤ 10 kHz) −N − 0.003 − % VO Ripple Rejection, VO = 10 V, f = 120 Hz (Note 4) Without CAdj CAdj = 10 mF 6 RR − 66 65 80 dB − − Thermal Shut.


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