BL317

BL317 HIGH CURRENT ADJUSTABLE VOLTAGE REGULATOR BL317 DESCRIPTION The BL317 is an adjustable 3-terminal positive voltage regulator, designed to supply 1A of output current with voltage adjustable from 1.3V ~ 35V. F E AT U R E S Typical 1% Output Voltage Tolerance Output voltage adjustable from 1.3V ~35V Output current in excess of 1A Internal short circuit protection Internal over temperature protection Output transistor safe area compensation A P P L I C AT I O N S PC Motherboard LCD Monitor Graphic Card DVD Player Network Interface Card/Switch Telecom Equipment Printer and other Peripheral Equipment Pin No. 1 2 3 Symbol Adj. Vout Vin Definition Adjustable Output Input Page1 www.belling.com.cn V1.0 BLOCK DIAGRAM BL317 ABSOLUTE MAXIMUM RATINGS (Ta=25°C) * Characteristic Symbol Min. Max. Unit Input - Output Voltage Difference Vin-Vout 37 V Power Dissipation Pd Internal limited Maximum junction temperature TJ 150 °C Storage temperature Lead temperature (soldering, 10sec) TS -40 150 °C TLEAD 260 °C ESD (human body model) ESD 4000 V *: Absolute maximum ratings are stress ratings only and functional device operation is not implied. The device could be damaged beyond Absolute maximum ratings. Page2 www.belling.com.cn V1.0 BL317 ELECTRICAL CHARACTERISTICS (VIN-VOUT=5V, IOUT=10mA, Ta=25°C, unless otherwise specified. ) * Characteristics Reference voltage Line regulation Test conditions 10mA≤ IOUT ≤1A 3V≤ (VIN-VOUT) ≤37V PD≦ 20W 3V≦ VIN-VOUT≦ 37V Loa...