LM317S

TIGER ELECTRONIC CO.,LTD Product specification 3-Terminal Positive Adjustable Regulator Features ◆ ◆ ◆ ◆ ◆ ◆ LM317S 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-263 Package Absolute Maximum Ratings ( Ta = 25 C) Parameter Input-Output Voltage Differential Lead Temperature Power Dissipation Operating Junction Temperature R ange Storage Temperature Range Temperature Coefficient of Output Voltage O Symbol V I -V O TLEAD Typ 40 230 Internally limited 0~125 -65~150 ±0.02 Unit V o C PD Tj TSTG ΔVo/ΔT W o C 1 o C 1. Adjust 2. Vout 3. Vin 2 3 %/oC TO-263-2L 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) Symbol Rline Test Conditions 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 Min - Typ 0.01 0.02 18 0.4 40 0.8 46 2.0 1.25 2.0 0.3 60 75 Max 0.04 0.07 25 0.5 70 1.5 100 5 1.30 Unit %/V Load Regulation (Note1) Rload mV % / VO 1.20 Adjustable Pin Current Adjustable Pin Current Change Reference Voltage IADJ ΔIADJ VREF IO(MAX) RR 3V ≤VI - VO ≤40V 10mA ≤IO ≤IMAX PD ≤PMAX 3V ≤VIN - VO ≤40V 10mA ≤IO ≤IMAX PD ≤PMAX VI - VO ≤15V, PD ≤PMAX VI - VO ≤40V, PD ≤PMAX VO = 10V, f = 120Hz without CADJ CADJ = 10μF (Note2) μA μA V Maximum Output Current 1.0 - A Ripple Rejection 66 - dB 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.