Datasheet LM317 (Fairchild) - 2
| Manufacturer | Fairchild |
| Description | 3-Terminal Positive Adjustable Regulator |
| Pages / Page | 5 / 2 — 317. Absolute Maximum Ratings. M L. Parameter. Symbol. Value. Unit. Note … |
| File Format / Size | PDF / 904 Kb |
| Document Language | English |
317. Absolute Maximum Ratings. M L. Parameter. Symbol. Value. Unit. Note 1:. Electrical Characteristic. Conditions. Min. Typ. Max. Note 2:. Note 3:
Model Line for this Datasheet
LM317
Text Version of Document
317 Absolute Maximum Ratings M L Parameter Symbol Value Unit
Input-Output Voltage Differential VI - VO 40 V Lead Temperature TLEAD 230 qC Power Dissipation PD Internally limited W Operating Junction Temperature Range Tj 0 a 125 qC Storage Temperature Range TSTG 65 a 125 qC Temperature Coefficient of Output Voltage 'VO/'T r0.02 % / qC
Note 1:
Absolute Maximum Ratings: are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation.
Electrical Characteristic
(VI - VO 5V, IO 0.5A, 0qC d TJ d 125qC, IMAX 1.5A, PDMAX 20W, unless otherwise specified)
Parameter Symbol Conditions Min Typ Max Unit
Line Regulation (Note 2) Rline TA 25qC –– 0.01 0.04 % / V 3V d VI VO d 40V 3V d VI VO d 40V – 0.02 0.07 % / V Load Regulation (Note 2) Rload TA 25qc, 10mA d IO d IMAX VO 5V – 18.0 25.0 mV% / VO VO t 5V 0.4 0.5 10mA d IO d IMAX VO 5V – 40.0 70.0 mV% / VO VO t 5V 0.8 1.5 Adjustable Pin Current IADJ – – 46.0 100 PA Adjustable Pin Current Change 'IADJ 3V d VI VO d 40V – 2.0 5.0 PA 10mA d IO d IMAX PD d PMAX Reference Voltage VREF 3V d VIN - VO d 40V 10mA d I 1.20 1.25 1.30 V O d IMAX PD d PMAX Temperature Stability STT – – 0.7 – % / VO Minimum Load Current to Maintain Regulation IL(MIN) VI - VO 40V – 3.5 12.0 mA Maximum Output Current IO(MAX) VI - VO d 15V, PD d PMAX 1.0 2.2 V A I - VO d 40V, PD d PMAX 0.3 – TA 25qC RMS Noise,% of VOUT eN TA 25qC, 10Hz d f d 10KHz – 0.003 0.01 % / VO Ripple Rejection RR VO 10V, f 120Hz without CADJ 66.0 60.0 – dB CADJ 10PF (Note 3) 75.0 Long-Term Stability, TJ THIGH ST TA 25qC for end point measurements, 1000HR – 0.3 1.0 % Thermal Resistance Junction to Case RTJC – – 5.0 – qC / W
Note 2:
Load and line regulation are specified at constant junction temperature. Change in VD due to heating effects must be taken into account separately. Pulse testing with low duty is used. (PMAX 20S)
Note 3:
CADJ, when used, is connected between the adjustment pin and ground. www.fairchildsemi.com 2
Input-Output Voltage Differential VI - VO 40 V Lead Temperature TLEAD 230 qC Power Dissipation PD Internally limited W Operating Junction Temperature Range Tj 0 a 125 qC Storage Temperature Range TSTG 65 a 125 qC Temperature Coefficient of Output Voltage 'VO/'T r0.02 % / qC
Note 1:
Absolute Maximum Ratings: are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation.
Electrical Characteristic
(VI - VO 5V, IO 0.5A, 0qC d TJ d 125qC, IMAX 1.5A, PDMAX 20W, unless otherwise specified)
Parameter Symbol Conditions Min Typ Max Unit
Line Regulation (Note 2) Rline TA 25qC –– 0.01 0.04 % / V 3V d VI VO d 40V 3V d VI VO d 40V – 0.02 0.07 % / V Load Regulation (Note 2) Rload TA 25qc, 10mA d IO d IMAX VO 5V – 18.0 25.0 mV% / VO VO t 5V 0.4 0.5 10mA d IO d IMAX VO 5V – 40.0 70.0 mV% / VO VO t 5V 0.8 1.5 Adjustable Pin Current IADJ – – 46.0 100 PA Adjustable Pin Current Change 'IADJ 3V d VI VO d 40V – 2.0 5.0 PA 10mA d IO d IMAX PD d PMAX Reference Voltage VREF 3V d VIN - VO d 40V 10mA d I 1.20 1.25 1.30 V O d IMAX PD d PMAX Temperature Stability STT – – 0.7 – % / VO Minimum Load Current to Maintain Regulation IL(MIN) VI - VO 40V – 3.5 12.0 mA Maximum Output Current IO(MAX) VI - VO d 15V, PD d PMAX 1.0 2.2 V A I - VO d 40V, PD d PMAX 0.3 – TA 25qC RMS Noise,% of VOUT eN TA 25qC, 10Hz d f d 10KHz – 0.003 0.01 % / VO Ripple Rejection RR VO 10V, f 120Hz without CADJ 66.0 60.0 – dB CADJ 10PF (Note 3) 75.0 Long-Term Stability, TJ THIGH ST TA 25qC for end point measurements, 1000HR – 0.3 1.0 % Thermal Resistance Junction to Case RTJC – – 5.0 – qC / W
Note 2:
Load and line regulation are specified at constant junction temperature. Change in VD due to heating effects must be taken into account separately. Pulse testing with low duty is used. (PMAX 20S)
Note 3:
CADJ, when used, is connected between the adjustment pin and ground. www.fairchildsemi.com 2
