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| SULM317 Elektronische Bauelemente RoHS Compliant Product A suffix of "-C" specifies halogen free Adjustable Voltage Regulator DESCRIPTION The SULM317 is an adjustable 3-termial positive voltage regulator, designed to supply more than 1.5A of output current with voltage adjustable from 1.3 to 37V. FEATURES Output current up to 1.5A. Output voltage adjustable from 1.3V to 37V. Internal short circuit protection. Internal over temperature protection. Safe-Area compensation for output transistor. PACKAGE DIMENSIONS REF. A b L4 c L3 L1 E Millimeter Min. Max. 4.40 4.80 0.76 1.00 0.00 0.30 0.36 0.5 1.50 REF 2.29 2.79 9.80 10.4 REF. c2 b2 D e L L2 Millimeter Min. Max. 1.25 1.45 1.17 1.47 8.6 9.0 2.54 REF. 14.6 15.8 0 8 1.27 REF BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS at Ta = 25C Parameter Input-Output Voltage Difference Load Temperature Power Dissipation Operating, Storage Temperature Range Symbol Vi-Vo TLEAD PD TOPR, TSTG Ratings 40 230 Internal limited 0~125, -65 ~ 150 C Unit V C 01-June-2005 Rev. B Page 1 of 4 SULM317 Elektronische Bauelemente Adjustable Voltage Regulator ELECTRICAL CHARACTERISTICS (VI-VO=5V, 0 C < TJ <125 C, IO=500mA, IMAX=1.5A, PMAX=20W, unless otherwise specified) Parameter Line Regulation Symbol VO Test Conditions TA=25C, 3VVI-VO=40V TA=0-125C, 3VVI-VO40V TA=25C VO6V VO5V VO5V VO6V 10 mAIOIMAX 10 mAIOIMAX Min. - Typ. 0.01 0.02 18 0.4 40 0.8 46 2.0 Max 0.04 0.07 25 0.5 70 1.5 100 5 Unit %V %V mV %/VO mV %VO uA uA Load Regulation VO Adjustable Pin Current Adjustable Pin Current Change IADJ IADJ 2.5VVI-VO40V, 10 mAIOIMAX,PDPMAX 3VVI-VO40V, 10 mAIOIMAX,PDPMAX STT IL(MIN) IO(MAX) eN RR ST RJC VI-VO=40V VI-VO15V, PD Reference Voltage Temperature Stability Minimum Load Current for Regulation Maximum Output Current RMS Noise vs.% of Vout Ripple Rejection Long-term Stability,TJ=THIGH Junction to Case Thermal Resistance 1.225 1.5 0.15 66 - 1.25 0.7 3.5 2.2 0.4 0.003 60 75 0.3 5 1.275 10 0.01 1 - V %/VO mA A %/VO dB % C/W *Note: Testing with low duty pulse should be used to avoid heating effect. 01-June-2005 Rev. B Page 2 of 4 SULM317 Elektronische Bauelemente Adjustable Voltage Regulator CHARACTERISTIC CURVES 01-June-2005 Rev. B Page 3 of 4 SULM317 Elektronische Bauelemente Adjustable Voltage Regulator APPLICATION CIRCUIT Fig. 1 Programmable voltage regulator VO=1.25V*(1+R2/R1)+IADJ*R2 C1 is required when regulator is located an appreciated distance from power supply. Co is needed to improve transient response. Fig. 2 Regulator with On-off control. Fig. 3 Soft start application. Fig. 4 Constant current application. 01-June-2005 Rev. B Page 4 of 4 |
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