G5U2178

ISSUED DATE :2005/06/21 REVISED DATE : G5U2178 Description C M O S L o w D r o p o u t Vo l t a g e R e g u l a t o r The G5U2178 series of positive, linear regulators feature low quiescent current (45 A typ.) with low dropout voltage, making them ideal for battery applications. Output voltages are set at the factory and trimmed to 1.5% accuracy. These rugged devices have both Thermal Shutdown, and Current Fold-back to prevent device failure under the “Worst” of operating conditions. In applications requiring a low noise, regulated supply, place a 1000pF capacitor between Bypass and Ground. The G5U2178 is stable with an output capacitance of 4.7 F or greater. Features & Low Dropout Voltage Very Functional Block Diagram Applications & Battery Powered Widgets &Instrumentation &Wireless Devices &PC Peripherals &Portable Electronics &Guaranteed 1.5A output &Over-Temperature Shutdown &Current Limiting &Short Circuit Current Fold-back &Highly Accurate± 1.5% &Low Temperature Coefficient ‡ &Noise Reduction Bypass Capacitor &Power-Saving Shutdown Mode Package Dimensions REF. A b L4 c L1 E Millimeter Min. Max. 4.40 4.80 0.66 0.91 0.00 0.30 B 0.36 0.5 2.29 2.79 9.80 10.4 REF. c2 L2 D e L Millimeter Min. Max. 1.25 1.45 1.27 REF. 8.6 9.0 1.70 REF. 14.6 15.8 0˚ 8˚ Typical Application Circuit 1/6 ISSUED DATE :2005/06/21 REVISED DATE : 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 T=100 : ) Symbol VIN IOUT VOUT Topr Tj Tj Max jc PD Ratings 8 PD/( VIN- VO) 1.5~5.0 -40 ~ +85 -40 ~ +125 150 5 3000 B Unit V A V : : /W mW Electrical Characteristics VIN=VOUT(T)+2V, VEN=VIN, TA=25 : unless otherwise 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 VEN=VEHmin, IO=1mA VOUT>1.2V VOUT>1.2V IO=1mA to 1.5A IO=1.5A VO=VOUT(E)-2% 2.0V