LT1506
FEATURES s s s s s s s s
DESCRIPTION
The LT ®1506 is a 500k Hz monolithic buck mode switching regulator functionally identical to the LT1374 but optimized for lower input voltage applications. It will operate over a 4V to 15V input range pared with 5.5V to 25V for the LT1374. A 4.5A switch is included on the die along with all the necessary oscillator, control and logic circuitry. High switching frequency allows a considerable reduction in the size of external ponents. The topology is current mode for fast transient response and good loop stability. Both fixed output voltage and adjustable parts are available. A special high speed bipolar process and new design techniques achieve high efficiency at high switching frequency. Efficiency is maintained over a wide output current range by keeping quiescent supply current to 4m A and by utilizing a supply boost capacitor to saturate the power switch. The LT1506 fits into standard 7-pin DD and fused lead SO-8 packages. Full cycle-by-cycle...
