GJ2148

ISSUED DATE :2004/12/28 REVISED DATE :2006/04/18B GJ2148 Description 1 . 5 A C M O S L o w D ro p o u t Vo l t ag e R e g u l a t o r The GJ2148 series of positive, linear regulators feature low quiescent current (45 A typ.) with low dropout voltage, making them ideal for battery applications. These rugged devices have both Thermal Shutdown, and Current Fold-back to prevent device failure under the “Worst” of operating conditions. The GJ2148 is stable with an output capacitance of 4.7 F or greater. Features & Low Dropout Voltage Very Functional Block Diagram &Guaranteed 1.5A output &Over-Temperature Shutdown &Current Limiting &Short Circuit Current Fold-back &Highly Accurate± 1.5% &Low Temperature Coefficient Applications & Battery Powered Widgets &Instrumentation &Wireless Devices &PC Peripherals &Portable Electronics Package Dimensions TO-252 REF. A B C D E F S Millimeter Min. Max. 6.40 6.80 5.20 5.50 6.80 7.20 2.40 3.00 2.30 REF. 0.70 0.90 0.60 0.90 REF. G H J K L M R Millimeter Min. Max. 0.50 0.70 2.20 2.40 0.45 0.55 0 0.15 0.90 1.50 5.40 5.80 0.80 1.20 Typical Application Circuit GJ2148 Page: 1/5 ISSUED DATE :2004/12/28 REVISED DATE :2006/04/18B Absolute Maximum Ratings Parameter Input Max Voltage Output Current Output Voltage Operating Ambient Temperature Junction Temperature Maximum Junction Temperature Thermal Resistance Internal Power Dissipation EDS Classification *Measure jc on backside center of tab. Symbol VIN IOUT VOUT Topr Tj Tj Max jc (Conductive Epoxy)* ja PD Ratings 8 PD/( VIN- VO) 1.5~5.0 -40 ~ +85 -40 ~ +125 150 5 90 1.2 B Unit V A V : : : : /W : /W W Electrical Characteristics VIN=VOUT(T)+2V, Ta=25 : unless otherwise noted Parameter Output Voltage Output Current Current Limit Load Regulation Dropout Voltage Quiescent Current Ground Pin Current Line Regulation Input Voltage Over Temperature Shutdown Over Temperature Hysterisis Symbol VOUT (E) (Note1) Condition IO=1mA VO>1.2V VO>1.2V VIN=VOUT(T)+2V, IO=1mA to 1.5A IO=1.5A VO=VOUT(E)-2% 1.4V