TIGER ELECTRONIC CO.,LTD Product specification LM317MDT 3-Terminal Positive Adjustable Regulator Features ◆ ◆ ◆ ◆ ◆ ◆ Description This monolithic integrated circuit is an adjustable 3-terminal positive voltage regulator designed to supply more than 1.0A of load current with anoutput voltage adjustable over a 1.2 to 37V. It employs internal current limiting, thermal shut-down and safe area compensation. Output Current In Excess of 1. 0A Output Adjustable Between 1. 2V and 37V Internal Thermal Overload Protection Internal Short Circuit Current Limiting Output Transistor Safe Operating Area Compensation TO-252 Package O Absolute Maximum Ratings ( Ta = 25 C) Parameter Symbol Typ Unit Input-Output Voltage Differential VI -VO 40 V Lead Temperature TLEAD 230 Power Dissipation PD Internally limited Operating Junction Temperature R ange Tj 0~125 o TSTG -65~150 o ΔVo/ΔT ±0.02 Storage Temperature Range Temperature Coefficient of Output Voltage o C 1 W 2 3 C 1. Adjust 2. Vout 3. Vin C TO-252 %/oC Electrical Characteristics ( Ta = 25 OC) (VI - VO= 5 V, IO= 0.5 A, 0oC ≤TJ ≤+ 125oC, IMAX = 1.5A,PDMAX = 15W, unless otherwise specified) Parameter Line Regulation (Note1) Load Regulation (Note1) Adjustable Pin Current Adjustable Pin Current Change Reference Voltage Maximum Output Current Ripple Rejection Symbol Rline Rload IADJ ΔIADJ VREF IO(MAX) RR Test Conditions Min Typ Max - 0.01 0.04 - 0.02 0.07 - 18 0.4 25 0.5 - 40 0.8 70 1.5 - 46 100 μA - 2.0 5 μA 1.20 1.25 1.30 V VI - VO ≤15V, PD ≤PMAX VI - VO ≤40V, PD ≤PMAX 1.0 2.0 0.3 - A VO = 10V, f = 120Hz without CADJ CADJ = 10μF (Note2) 66 - dB TA = +25oC 3V ≤VI - VO ≤40V 3V ≤VI - VO ≤40V TA = +25oC, 10mA ≤IO ≤IMAX VO < 5V VO ≥5V 10mA ≤IO ≤IMAX VO < 5V VO ≥5V 3V ≤VI - VO ≤40V 10mA ≤IO ≤IMAX PD ≤PMAX 3V ≤VIN - VO ≤40V 10mA ≤IO ≤IMAX PD ≤PMAX 60 75 Unit %/V mV % / VO Note: 1. Load and line regulation are specified at constant junction temperature. Change in VD due to heating effects must be taken into account separately. Pulse testing with low duty is used. (PMAX = 15W) 2. CADJ, when used, is connected between the adjustment pin and ground.