Datasheet Microchip MIC23303 — 数据表

MIC23303
4MHz PWM 3A Buck Regulator with
HyperLight Loadв„ў and Power Good General Description Features The MIC23303 is a high-efficiency 4MHz 3A synchronous
buck regulator with HyperLight Loadв„ў mode, Power Good
output indicator, and programmable soft-start. HyperLight
Load provides very high efficiency at light loads and ultrafast transient response, which makes the MIC23303
perfectly suited for supplying processor core voltages. An
additional benefit of this proprietary architecture is very low
output ripple voltage throughout the entire load range with
the use of small output capacitors. The tiny 3mm Г— 3mm
DFN package saves precious board space and requires
only six external components. The MIC23303 is designed for use with a very small
inductor, down to 0.33ВµH, and an output capacitor as small
as 10ВµF that enables a total solution size less than 1mm in
height.
The MIC23303 has very low quiescent current of 24ВµA and
can achieve peak efficiency of 93% in continuous
conduction mode. In discontinuous conduction mode, the
MIC23303 can achieve 80% efficiency at 1mA.
The MIC23303 is available in a 12-pin 3mm Г— 3mm DFN
package with an operating junction temperature range
from –40°C to +125°C.
Datasheets and support documentation are available on …