SM612

SM600/SM601/SM602/ SM610/SM611/SM612 SWITCHING REGULATOR POWER OUTPUT STAGES DESCRIPTION The SM600/601/602 and SM610/611/612 series of Power Output Stages are especially designed to be driven with standard PWM integrated circuits to form an efficient switching power supply. The SM600, SM601 and SM602 are optimized for non-isolated Buck and Buck-Boost application, where SM610, SM611 and SM612 are best suited for DC-DC Boost type applications as well as negative output Buck Converters. The hybrid circuit construction utilizes thick film resistors on a beryllia substrate for maximum thermal conductivity and resultant low thermal impedance. All of the active elements in the hybrid are fully passivated. FEATURES Equivalent to the Unitrode PIC 600, 601, 602, 610, 611, 612 5A current capability Designed and characterized for switching regulator applications such as Buck, Boost, and Buck-Boost type Cost saving design reduces size, improves efficiency, reduces noise and RFI High operating efficiency at 2A typical performance Rise and fall time < 75ns Efficiency > 85% Electrically isolated, 4-pin, TO-66 hermetic case HIGH RELIABILITY FEATURES ♦ Available with high reliability processing FUNCTIONAL DIAGRAM SM600/SM601/SM602 SM610/SM611/SM612 4/90 Rev 1.1 2/94 Copyright © 1994 1 11861 Western Avenue ∞ Garden Grove, CA 92841 (714) 898-8121 ∞ FAX: (714) 893-2570 LINFINITY Microelectronics Inc. SM600/SM601/SM602/SM610/SM611/SM612 ABSOLUTE MAXIMUM RATINGS (Note 1) Input...