GM6603

www.DataSheet4U.com GM6603 3.0A PRECISION LINEAR REGULATORS Power Management Description The GM6603 series of positive adjustable and fixed regulators are designed to provide 3.0A output with low dropout voltage performance. On-chip trimming adjusts the reference voltage to 2.0%. Put them to work in post regulators or microprocessor power supplies where low voltage operation and fast transient response are required. Device includes over-current protection and thermal shutdown protection as well. Pin-to-pin compatible with the LT1085 family of regulators, the GM6603's are available in TO-252, TO-220 and surface-mount TO-263 packages. Features Adjustable or Fixed Output Output Current of 3.0A Dropout Voltage (typical) 1.3V @ 3.0A Typical Line Regulation 0.015% Typical Load Regulation 0.05% Fast Transient Response Current Limit Protection Thermal Shutdown Protection Application Microprocessor Supply Post Regulators for Switching Supplies Printer Supplies Motherboards Telecommunication Systems TYPICAL APPLICATION CIRCUITS (Adjustable Version) (Fixed Version) VOUT= 3.45V VIN> 4.75V 3 VIN ADJ VOUT 2 R1 133W 1.0% R2 232W 1.0% VIN> 4.75V 3 VOUT= 3.3V GND + 1 C1 10µF Tant + C2 10µF Tant. Min + 1 C1 10µF Tant + C2 10µF Tant. Min VOUT= VREF X (1 + R2 ) + IADJ X R2 R1 Notes: 1. C1 needed if device is far from filter capacitors 2. C2 minimum value required for stability www.gammamicro.com PRELIMINARY GM6603 1 Revision 1, Jun. 2004 GM6603-Adj GM6603-3.3 VOUT ...