L4973V5.1 Overview
Description
The L4973 is a step down monolithic power switching regulator delivering 3.5A at fixed voltages of 3.3V or 5.1V and using a simple external divider output adjustable voltage up to 50V. Realized in BCD mixed technology, the device VCC (8V to 55V) ROSC CIN C2 7 8 10 12 CBOOT VO(3.3V or 5.1V) L1 1 4,5,6, 13,14,15 16 L4973 17 9 3 11 2 RCOMP COSC CSS CCOMP D1 COUT D97IN554A April 2000 1/16 L4973V3.3 - L4973V5.1 - L4973D3.3 - L4973D5.1 uses an internal power D-MOS transistor (with a typical Rdson of 0.15ohm) to obtain very high efficiency and very fast switching times.
