AN1126多相应用的L4973电流共享

AN1126多相应用的L4973电流共享

AN1126
APPLICATION NOTE
CURRENT SHARING OF THE L4973
IN A MULTIPHASE APPLICATION
by Domenico Arrigo & Giuseppe Gattavari

INTRODUCTION
The L4973 family is a 3.5A monolithic step-down dc-dc converter, available in POWERDIP18( 12+3+3)
and SO20L (12+4+4) plastic packages. The operating input supply voltage range is from 8V to 55V, and
the output ranges from 3.3V (L4973D3.3) and 5.1V(L4973D5.1) to 40V. Other regulated outputs below
3.3V are also possible (See Applicatio