CORPORATION ISSUED DATE :2004/07/30 REVISED DATE : GELM 317 3 - T E R M I N A L 1 A P O S I T I V E A D J U S T A B L E V O L T A G E R E G U L AT O R Description The GELM317 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 c D E L4 L5 Millimeter Min. Max. 4.40 4.80 0.76 1.0 0.36 0.50 8.60 9.00 9.80 10.4 14.7 15.3 6.20 6.60 REF. c1 b1 L e L1 Ø A1 Millimeter Min. Max. 1.25 1.45 1.17 1.47 13.25 14.25 2.54 REF. 2.60 2.89 3.71 3.96 2.60 2.80 1/4 CORPORATION ISSUED DATE :2004/07/30 REVISED DATE : Absolute Maximum Ratings at Ta = 25 Parameter Symbol Input-Output Voltage Difference Load Temperature Ratings Unit V Vi-Vo 40 TLEAD 230 Power Dissipation PD Internal limited Operating Temperature Range TOPR 0~125 Storage Temperature Range TSTG -65 ~ 150 Electrical Characteristics (VI-VO=5V,0 <Tj<125 at Ta = 25 ,IO=500mA,IMAX=1.5A,PMAX=20W,unless otherwise specified PARAMETER Symbol Line Regulation VO Load Regulation Adjustable Pin Current VO Test Conditions TYPE Max. 0.01 0.04 %V Ta=0-125 ,3v<=VI-VO<=40V 0.02 0.07 %V VO<=6V 18 25 mV 10mA<=IO<=IMAX Ta=25 VO>=5V 0.4 0.5 %/VO 10mA<=IO<=IMAX VO<=5V 40 70 mV VO>=6V 0.8 1.5 %VO 46 2.0 100 5 uA uA 1.20 1.25 1.30 V IADJ Adjustable Pin Current Change IADJ UNIT Ta=25 ,3V<=VI-VO=40V 2.5V<=VI-VO<=40V ,10mA<=IO<=IMAX,PD<=PMAX 3V<=VI-VO<=40V, Reference Voltage Temperature Stability Minimum Load Current for Regulation Maximum Output Current 10mA<=IO<=IMAX,PD<=PMAX STT IL(MIN) IO(MAX) RMS Noise v.s.%of Vout Ripple Rejection eN RR 0.7 VI-VO=40V VI-VO<=15V,PD<=PMAX VI-VO<=15V,PD<=PMAX,Ta=25 ST R 1.5 2.2 0.15 0.4 TA=25 ,10HZ<=f<=10KHZ 0.003 VO=10V,f=120HZ, VO=10V,f=120HZ,CADJ=10uF Long-term Stability,TJ=THIGH Junction to Case Thermal Resistance 3.5 TA=25 ,1000hr JC 60 66 %/VO 10 mA A 0.01 %/VO dB 75 0.3 5 1 % /W *Note: Testing with low duty pulse should be used to avoid heating effect. 2/4 CORPORATION ISSUED DATE :2004/07/30 REVISED DATE : Characteristics Curve 3/4 CORPORATION ISSUED DATE :2004/07/30 REVISED DATE : Application Circuit GELM317 Important Notice: All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of GTM. GTM reserves the right to make changes to its products without notice. GTM semiconductor products are not warranted to be suitable for use in life-support Applications, or systems. GTM assumes no liability for any consequence of customer product design, infringement of patents, or application assistance. Head Office And Factory: Taiwan: No. 17-1 Tatung Rd. Fu Kou Hsin-Chu Industrial Park, Hsin-Chu, Taiwan, R. O. C. TEL : 886-3-597-7061 FAX : 886-3-597-9220, 597-0785 China: (201203) No.255, Jang-Jiang Tsai-Lueng RD. , Pu-Dung-Hsin District, Shang-Hai City, China TEL : 86-21-5895-7671 ~ 4 FAX : 86-21-38950165 4/4