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LM338 Datasheet(PDF) 2 Page - Seme LAB |
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LM338 Datasheet(HTML) 2 Page - Seme LAB |
2 / 6 page VREF Reference Voltage DVOUT Line Regulation 1 DVIN DVOUT Load Regulation 1 DIOUT Thermal Regulation Ripple Rejection IADJ Adjust Pin Current DIADJ Adjust Pin Current Change IMIN Minimum Load Current ISC Current Limit DVOUT Temperature DTEMP Stability DVOUT Long Term Stability DTIME en RMS Output Noise (% of VOUT) RqJC Thermal Resistance Junction to Case IOUT = 10mA IOUT = 10mA to 5A VIN – VOUT = 3V to 35V P £ 50W TJ = –55 to +150°C VIN – VOUT = 3V to 35V TJ = –55 to +150°C IOUT = 10mA to 5A VOUT £ 5V VOUT ³ 5V IOUT = 10mA to 5A VOUT £ 5V TJ = –55 to +150°C VOUT ³ 5V tp = 20ms CADJ = 0 VOUT = 10V TJ = –55 to +150°C f = 120Hz CADJ = 10mF TJ = –55 to +150°C TJ = –55 to +150°C IOUT = 10mA to 5A VIN – VOUT = 3V to 35V TJ = –55 to +150°C VIN – VOUT = 35V TJ = –55 to +150°C VIN – VOUT £ 10V DC TJ = –55 to +150°C 0.5ms Peak VIN – VOUT = 30V TJ = –55 to +150°C TA = 125°C t = 1000 Hrs f = 10 Hz to 10 kHz K Package (TO–3) 1.238 1.25 1.262 1.225 1.250 1.270 0.005 0.010 0.020 0.040 515 0.1 0.3 20 30 0.3 0.6 0.002 0.010 60 60 75 45 100 0.2 5 3.5 5 58 712 0.25 1 12 0.3 1 0.001 1 1.190 1.240 1.290 0.005 0.010 0.020 0.040 515 0.1 0.3 20 30 0.3 0.6 0.002 0.010 60 60 75 45 100 0.2 5 3.5 5 58 712 1 1 0.3 1 0.001 1 V V % / V mV % mV % %/W dB dB mA mA mA A A % % % °C/W IP138A SERIES IP138A SERIES IP338A SERIES IP338A SERIES LM138 SERIES Prelim. 4/96 Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk 1) Regulation is measured at constant junction temperature, using pulse testing at a low duty cycle. Changes in output voltage due to heating effects are covered under thermal regulation specifications. Load regulation is measured from the bottom of the package for the TO–3 package. 2) Test Conditions unless othewise stated: VIN – VOUT = 5V , TJ = 25°C , IOUT = 2.5A. Although power dissipation is internally limited, these specifications apply for dissipations of 50W and IMAX = 5A. LM138 IP138A IP138 Parameter Test Conditions Min. Typ. Max. Min. Typ. Max. Units |
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