SULM317 Adjustable Voltage Regulator Elektronische Bauelemente RoHS Compliant Product A suffix of “-C” specifies halogen free 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 z z z z z 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 θ 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 = 25°C Parameter Symbol Ratings Unit Input-Output Voltage Difference Vi-Vo 40 V Load Temperature TLEAD 230 °C Power Dissipation PD Internal limited TOPR, TSTG 0~125, -65 ~ 150 Operating, Storage Temperature Range 01-June-2005 Rev. B °C Page 1 of 4 SULM317 Adjustable Voltage Regulator Elektronische Bauelemente ELECTRICAL CHARACTERISTICS (VI-VO=5V, 0 °C < TJ <125 °C, IO=500mA, IMAX=1.5A, PMAX=20W, unless otherwise specified) Parameter Line Regulation Load Regulation Symbol Test Conditions Min. Typ. Max Unit ΔVO TA=25°C, 3V≦VI-VO=40V - 0.01 0.04 %V TA=0-125°C, 3V≦VI-VO≦40V - 0.02 0.07 %V TA=25°C VO≦6V - 18 25 mV 10 mA≦IO≦IMAX VO≧5V - 0.4 0.5 %/VO VO≦5V - 40 70 mV VO≧6V - 0.8 1.5 %VO - 46 100 uA - 2.0 5 uA 1.225 1.25 1.275 V - 0.7 - %/VO mA ΔVO 10 mA≦IO≦IMAX Adjustable Pin Current Adjustable Pin Current Change IADJ ΔIADJ Minimum Load Current for Regulation Maximum Output Current 10 mA≦IO≦IMAX,PD≦PMAX STT IL(MIN) VI-VO=40V - 3.5 10 IO(MAX) VI-VO≦15V, PD<PMAX 1.5 2.2 - VI-VO=40V, PD<PMAX, TJ=25°C 0.15 0.4 - TA=25°C,10 HZ≦f≦10 KHz - 0.003 0.01 VO=10V, f=120Hz, - 60 - VO=10V, f=120Hz, CADJ=10uF 66 75 - TA=25°C, 1000hr - 0.3 1 % - 5 - °C/W RMS Noise vs.% of Vout eN Ripple Rejection RR Long-term Stability,TJ=THIGH Junction to Case Thermal Resistance 10 mA≦IO≦IMAX,PD≦PMAX 3V≦VI-VO≦40V, Reference Voltage Temperature Stability 2.5V≦VI-VO≦40V, ST RθJC A %/VO dB *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