Bay Linear Linear Excellence 1.5A Low Dropout Voltage Regulator B1086 Adjustable & Fix Output Advance Information Description Features The Bay Linear B1086 is Monolithic low power 1.5A Adjustable and fixed NPN voltage regulator that are easy to use with minimum external components. It is suitable for applications requiring a well-regulated positive output voltage with low input-output differential voltage requirements and output voltage 3.3V, 2.9V, or 2.5V. The B1086 Outstanding features include full power usage up to 1.5Amp of load current internal current limiting and thermal shutdown. Other fixed versions are also available Vout=2.0 to 4.0V. The B1086 is offered in a 3-pin TO-220, TO-263 & TO-252 packages compatible with other 3 terminal regulators. For 3A Low dropout Regulator refer to the B1085 data sheet. • • • • • • • Adjustable Output Down to 1.2V Fixed Output Voltages 2.5V, 3.3V, and 5.0V Output Current of 1.5A Low Dropout Voltage 1.1V Typ. Current & Thermal Limiting Standard 3-Terminal Low Cost TO-220, D2, D Packages Similar to industry Standard LT1086/LT1586 Applications • • • • • • 3.3V to 2.5V for Pentium Processor SMPS Post Regulator High Efficiency “Green” Computer Systems High Efficiency Linear Power Supplies 5V to 3.XXV fro Pentium Processor Battery Charger Ordering Information Pin Connection Devices B1086T B1086S B1086D Package Temp. TO-220 TO-263 TO-252 0 °C to 70 °C 0 °C to 70 °C 0 °C to 70 °C TO-263-3 (S) TO-252 (D) Bay Linear 1 2 3 1 ADJ/ GND Top View Bay Linear, Inc 2 3 V OU VIN T Front View 2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 989-7144, Fax: (925) 940-9556 www.baylinear.com B1086 Absolute Maximum Rating Parameter Maximum Input Voltage Power Dissipation Thermal Resistance Junction to Case Thermal Resistance Junction to Ambient Operating Junction Temperature Range Control Section Power Transistor Storage Temperature Range Lead Temperature (Soldering 10 Sec.) Symbol Value Unit VIN PO θJC θJA 6 Internally Limited 3 50 V W °C/W °C TJ TSTG TLEAD 0 to 125 0 to 150 -65 to 150 260 Electrical Characteristics (VIN = 4.75V to 5.25V; IO = 10mA to 1.5Amp, unless otherwise specified) Parameter Symbol Conditions Output Voltage VO Line Regulation (1) REG (line) Load Regulation (1) REG (LOAD) Dropout Voltage VD Current Surge Limit Quiescent Current Temperature Coefficient Temperature Stability RMS Output Noise Ripple Rejection Thermal Resistance IS IQ TC TS VN RA - Vo = 3.3V, IO = 10mA, VIN =5V, T= 25 °C Vo = 3.3V, IO = 10mA, VIN =5V, Over Temp. Vo = 2.9V, IO = 10mA, VIN =5V, T= 25 °C Vo = 2.9V, IO = 10mA, VIN =5V, Over Tamp. Vo = 2.5V, IO = 10mA, VIN =5V, T= 25 °C Vo = 2.5V, IO = 10mA, VIN =5V, Over Temp. IO = 10mA, VIN =5V, T= 25 °C IO = 10mA, VIN =5V, Over Temperature IO = 10mA, VIN =5V, T= 25 °C IO = 10mA, VIN =5V, Over Temperature T= 25 °C Over Temperature VIN =5V VIN =5V IO = 10mA, VIN =5V T= 25 °C, 10Hz to 10khz T= 25 °C, VIN =5V TO-220 Junction to Tab Junction to Ambient DD Package Junction to Tab Junction to Ambient MIN TYP MAX UNIT 3.267 3.234 2.871 2.842 2.475 2.450 3.3 3.333 3.366 2.929 2.958 2.525 2.550 0.2 V 2.9 2.5 0.015 0.035 60 1.0 1.1 2.5 10 0.005 0.5 0.003 70 3.0 60 3.0 60 % V 1.3 16 3.0 60 3.0 60 A mA %/°C % %VO dB °C/W Note: Output Switch tests are performed under pulsed conditions to minimize power dissipation Bay Linear, Inc 2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 989-7144, Fax: (925) 940-9556 www.baylinear.com Advance Information- These data sheets contain descriptions of products that are in development. The specifications are based on the engineering calculations, computer simulations and/ or initial prototype evaluation. Preliminary Information- These data sheets contain minimum and maximum specifications that are based on the initial device characterizations. These limits are subject to change upon the completion of the full characterization over the specified temperature and supply voltage ranges. The application circuit examples are only to explain the representative applications of the devices and are not intended to guarantee any circuit design or permit any industrial property right to other rights to execute. Bay Linear takes no responsibility for any problems related to any industrial property right resulting from the use of the contents shown in the data book. Typical parameters can and do vary in different applications. Customer’s technical experts must validate all operating parameters including “ Typical” for each customer application. LIFE SUPPORT AND NUCLEAR POLICY Bay Linear products are not authorized for and should not be used within life support systems which are intended for surgical implants into the body to support or sustain life, in aircraft, space equipment, submarine, or nuclear facility applications without the specific written consent of Bay Linear President. Bay Linear, Inc 2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 989-7144, Fax: (925) 940-9556 www.baylinear.com