eorex Preliminary EP1017 THREE-TERMINAL ADJUSTABLE OUTPUT POSITIVE VOLTAGE REGULATORS Description The EP1017 are adjustable 3-terminal positive voltage regulators capable of supplying in excess of 1.5A over an output voltage range of 1.2 to 37V. These voltage regulators are exceptionally easy to use and require only two external resistors to set the output voltage. Further, they employ internal current limiting. Thermal shutdown and safe area compensation, making them essentially blow-out proof. Pin Assignment Ordering Information Jun. 2007 www.eorex.com 1/8 eorex EP1017 Preliminary Maximun Ratings Rating Input-Output Voltage Differential Symbol Value Unit VI-VO 40 Vdc Power dissipation PD Operating T Internally Limited ℃ -40 to +125 Electrical Characteristics (VI-VO=5.0V;IO=0.5A;TJ=25℃) Symbol Parameter Conditions Min. Typ. Max. Units Regline Line Regulation1 3.0V≦(V1-V0) ≦40V 0.04 %/V Regload Line Regulation1 10mA≦1out ≦1.5A, V0≦5.0V,C≧5.0V 25 0.5 mV %V TR Thermal Regulation 20ms Pulse 0.07 %W IAdi Adjustment Pin Current 100 µA 2 Vref Reference Voltage PD≦20W 3.0V≦V1-V0≦40V 10mA≦Io≦1.5A 1.3 V ILIMIT Minimum Load Current to Maintain Regulation V1-V0=40V 10 mA IMax Maximum Output Current PD≦20W, V1-V0≦15V V1-V0=40V θth Thermal Resistance junction to ambient 1.5 0.15 2.2 0.4 A 5.0 °C/W NOTES: 1.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. 2.Selected devices with tightened tolerance reference voltage available. Jun. 2007 www.eorex.com 2/8 eorex Preliminary EP1017 Typical Performance Characteristics Jun. 2007 www.eorex.com 3/8 eorex Preliminary Jun. 2007 EP1017 www.eorex.com 4/8 eorex Preliminary EP1017 Schematic Diagram EP1017 contains 29 active transistors Typical Application 5.0V Electronic Shutdown Regulator Jun. 2007 www.eorex.com 5/8 eorex Preliminary EP1017 Standard Application ＊Cin is required if regulator is located an appreciate distance from power supply filter. ＊Cout is not needed for stability, however, it does improve transient response. Vout=1.25(1+R2/R1)+IAdjR2 Since IAdj is controlled to less than 100 µA, the error associated with this term is negligible in most applications. ＊Pulse testing required. 1% Duty Cycle is suggested. To calculate R2: Vout=ISETR2+1.250V ; Assume ISET=5.25mA Jun. 2007 www.eorex.com 6/8 eorex EP1017 Preliminary Package Description DIM MILLIMETERS MIN MAX A 14.97 16.24 B 9.66 10.28 C 4.07 4.82 D 0.64 0.88 F 3.61 3.73 G 2.42 2.66 H 2.80 3.93 J 0.48 0.67 K 12.70 14.27 L 1.20 1.63 N 4.83 5.33 Q 2.54 3.04 R 2.04 2.78 S 1.05 1.39 T V 6.36 1.00 6.86 - Z - 2.04 Jun. 2007 www.eorex.com 7/8 eorex EP1017 Preliminary Package Description (Continued) DIM MILLIMETERS MIN MAX A 8.64 9.65 B 9.65 10.29 C 4.06 4.83 D 0.51 0.99 E 1.14 1.40 F 1.14 1.40 J 0.46 0.74 K 14.61 15.88 L 2.54 M 00 80 N 2.03 2.79 S 1.27 1.78 U 2.29 2.79 V 1.02 1.40 Jun. 2007 www.eorex.com 8/8