SMLM317L 100mA Adjustable Voltage Regulator Elektronische Bauelemente RoHS Compliant Product Description SOT-89 The SMLM317L is a monolithic integral circuit, designed for use as positive adjustable voltage regulator. It is designed to supply unit 100mA of load current with an output voltage adjustable over a 1.25V to 37V range. Features * Thermal Overload Protection * Floating Operation For High Voltage Applications * Short Circuit Protection * Output Voltage Adjustable From 1.25V To 37V * Output Transistor Save Area Compensation * Output Current In Excess Of 100mA REF. A B C D E F Millimeter Min. Max. 4.4 4.6 4.05 4.25 1.50 1.70 1.30 1.50 2.40 2.60 0.89 1.20 REF. G H I J K L M Millimeter Min. Max. 3.00 REF. 1.50 REF. 0.40 0.52 1.40 1.60 0.35 0.41 5° TYP. 0.70 REF. Test Circuit SMLM317L Block Diagram http://www.SeCoSGmbH.com/ 01-Jun-2002 Rev. A Any changing of specification will not be informed individual Page 1 of 3 SMLM317L 100mA Adjustable Elektronische Bauelemente Voltage Regulator o Absolute Maximum Ratings at Ta=25 C Parameter Input-Output Voltage Difference Symbol Ratings VIN-VOUT 40 V o Junction Temperature TJ +125 Power Dissipation PD 625 Storage Temperature Range TSTR 0~+70 Operating Juction Temperature TOPR Unit C mW o C o C -40~+150 Note: 1. Absolute max. ratings are those values beyond witch the device could be permanently demaged. Absolute max. ratings are stress ratings only and functional device operation is not implied. o 2. The device is guaranteed to meet performance specification within 0 C~70oC operating temperature range and assured by design o o from -20 C~85 C. Electrical Characteristics (VIN-VOUT=5V, 0oC ≤ TJ ≤ 125oC, IO=40mA, unless otherwise specified) Parameter Line Regulation Load Regulation Adjustable Pin Current Adjustable Pin Current Change Reference Voltage Symbol REGLINE REGLOAD Min TJ=25 VIN -VOUT=3~40V IO<20mA 0 IO=5~100mA VOUT 5V 0 IO=5~100mA VOUT 5V 0 TJ Unit - 0.01 0.04 %/V 0.02 0.07 %/V - 5 25 125 - 20 70 - 0.1 0.5 125 - 0.3 1.5 - 50 100 A A TJ=25 TJ Max - TJ=25 TJ Typ 125 IADJ mV %/VOUT IADJ VIN -VOUT=3~40V IO=5~100mA, PD < 625mW - 0.2 5 VREF VIN -VOUT=3~40V IO=5~100mA, PD < 625mW 1.2 1.25 1.3 V - 0.7 - % 5 mA - mA %/VOUT Output Voltage Temperature Stability VOUT/VOUT Minimum Load Current ILOAD(Min) Maximum Output Current Test Conditions IOUT(Max) VIN -VOUT=40V - 3.5 VIN -VOUT=3~13V 100 200 VIN -VOUT=40V 25 50 - 0.003 - - 65 - 66 80 - Output Noise Voltage (% of VOUT) eN f=10Hz ~ 10KHz, TJ=25 Ripple Rejection RR TJ=25 , f=120Hz CADJ=0 CADJ=10uF dB Characteristics Curve http://www.SeCoSGmbH.com/ 01-Jun-2002 Rev. A Any changing of specification will not be informed individual Page 2 of 3 SMLM317L 100mA Adjustable Elektronische Bauelemente Voltage Regulator Application Information and Circuits The SMLM317L provides an internal reference voltage of 1.25V between the output and adjustments terminals.This is used to set a constant current flow across an external resistor driver, giving an output voltage VOUT of: VOUT=VREF*(1+R2/R1)+IADJ*R2. The device is designed to min. the term IADJ (100uA max) and to maintain it very constant with line and load charges. Usually, the error term IADJ*R2 can be neglected. To obtain the previous requirement, all the regulator quiescent current is returned to the output terminal, imposing a min. load current condition. If the load is insufficient, the output voltage will rise. The SMLM317L is a floating regulator, input-output differential voltage,supplies of very high voltage with respect to ground can be regulated as long as the max. input-output differential is not exceeded. Furthemore, programmable regulators are easily obtainable and, by connecting a fixed resistor between the adjustment and output, the device can be used as a precision current regulator. 1 SMLM317L 2,3,6,7 1 4 SMLM317L 2,3,6,7 4 Fig 3. Slow Turn-On 15V Regulator h tp://www.SeCoSGmbH.com/ 01-Jun-2002 Rev. A 2,3, 6,7 4 Fig 1. Basic Adjustable Regulator 1 SMLM317L Fig 2. Voltage Regulator with Protection Diodes 1 SMLM317L 2,3,6,7 4 Fig 4. 5V Electronic Shut-Down Regulator Any changing of specification will not be informed individual Page 3 of 3