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LM317MABDT Scheda tecnica(PDF) 2 Page - ON Semiconductor |
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LM317MABDT Scheda tecnica(HTML) 2 Page - ON Semiconductor |
2 / 13 page LM317M http://onsemi.com 2 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 TA = 25°C Thermal Resistance, Junction−to−Air Thermal Resistance, Junction−to−Case Plastic Package, ST Suffix, Case 318E TA = 25°C Thermal Resistance, Junction−to−Air Thermal Resistance, Junction−to−Case PD qJA qJC PD qJA qJC PD qJA qJC Internally Limited 70 5.0 Internally Limited 92 5.0 Internally Limited 245 15 °C/W °C/W °C/W °C/W °C/W °C/W Operating Junction Temperature Range TJ − 40 to +125 °C Storage Temperature Range Tstg − 65 to +150 °C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 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.) Characteristics Figure Symbol LM317M / LM317MB Unit Min Typ Max 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 0.1 25 0.5 mV % 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 1.200 1.250 1.300 V Line Regulation (Note 3) 3.0 V ≤ VI−VO ≤ 40 V 3 Regline − 0.02 0.07 %/V Load Regulation (Note 3) 10 mA ≤ IO ≤ 0.5 A VO ≤ 5.0 V VO ≥ 5.0 V 4 Regload − − 20 0.3 70 1.5 mV % 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 Long−Term Stability, TJ = Thigh (Note 5) TA= 25°C for End−point Measurements 5 S − 0.3 1.0 %/1.0 kHrs. 2. Tlow to Thigh = 0° to +125°C for LM317M Tlow to Thigh = − 40° to +125°C for LM317MB. 3. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used. 4. CAdj, when used, is connected between the adjustment pin and ground. 5. Since Long−Term Stability cannot be measured on each device before shipment, this specification is an engineering estimate of average stability from lot−to−lot. |
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