GQ2143

ISSUED DATE :2005/01/24 REVISED DATE : GQ2143 Description C M O S P o s i t i v e Vo l t a g e R e g u l a t o r The GQ2143 of positive, linear regulators feature low quiescent current (35 A typ.) with low dropout voltage, making them ideal for battery applications. This rugged device has both Thermal Shutdown, and Current Fold-back to prevent device failure under the “Worst” of operating conditions. The GQ2143 is stable with an output capacitance of 2.2 F or greater. Features & Low Dropout Voltage Very Functional Block Diagram Applications & Battery Powered Widgets &Instrumentation &Wireless Devices &PC Peripherals &Portable Electronics &Cordless Phones &Electronic Scales &Guaranteed 300mA output &Over-Temperature Shutdown &Current Limiting &Short Circuit Current Fold-back &Highly Accurate± 1.5% &Adjustable output voltages &Power-saving Shutdown Mode &Low Temperature coefficient Package Dimensions REF. A B C D E F Millimeter Min. Max. 2.70 3.10 2.60 3.00 1.40 1.80 0.30 0.55 0 0.10 0° 10° REF. G H I J K L Dimensions Millimeter 1.90 REF. 1.20 REF. 0.12 REF. 0.37 REF. 0.60 REF. 0.95 REF. Typical Application Circuit 1/8 ISSUED DATE :2005/01/24 REVISED DATE : Absolute Maximum Ratings Parameter Input Max Voltage Output Current Input, Output Voltage Operating Ambient Temperature Junction Temperature Maximum Junction Temperature Thermal Resistance Power Dissipation( T=100 : ) EDS Classification Symbol VIN IOUT Topr Tj Tj Max ja PD VIN=5V, Ratings 8 PD/( VIN- VO) GND-0.3 to VIN+0.3 -40 ~ +85 -40 ~ +125 150 260 380 B Unit V mA V : : /W mW Electrical Characteristics Ta=25 Parameter Output Voltage Output Current Current Limit Load Regulation Dropout Voltage Ground Pin Current Line Regulation Input Voltage Over Temperature Shutdown Over Temperature Hysterisis unless otherwise noted Condition Min -1.5% 300 300 Note1 - Symbol VO IO ILIM REGLOAD VDROPOUT IGND REGLINE VIN OTS OTH TC ISC PSRR TYP - Max 1.5% 1 1300 400 300 0.15 0.1 7 300 1.23 VIN 0.4 0.1 0.5 1 0.1 85 - Unit V mA mA % mV A % V : : ppm/ : mA dB VIN=5V, IO=1mA VIN=5V, VO>1.2 VIN=5V, VO>1.2 VIN=5V, IO=1mA to 300mA 1.5V