Description
The LM2672 series of regulators are monolithic
integrated DC-DC converter built with a LMDMOS
process. These regulators provide all the active
functions for a step-down (buck) switching regulator,
capable of driving a 1-A load current with excellent
line and load regulation. These devices are available
in fixed output voltages of 3.3 V, 5 V, 12 V, and an
adjustable output version.
Requiring a minimum number of external
components, these regulators are simple to use and
include patented internal frequency compensation,
fixed frequency oscillator, external shutdown, softstart, and frequency synchronization.
The LM2672 series operates at a switching frequency
of 260 kHz, thus allowing smaller sized filter
components than what is required with lower
frequency switching regulators. Because of its very
high efficiency (>90%), the copper traces on the
printed-circuit board are the only heat sinking
required.
Dlm2672