Datasheet Microchip MIC23153 — 数据表

MIC23153
4MHz PWM 2A Buck Regulator with
HyperLight Loadв„ў and Power Good General Description Features The MIC23153 is a high-efficiency, 4MHz, 2A,
synchronous buck regulator with HyperLight Loadв„ў mode,
Power Good output indicator, and programmable soft-start.
HyperLight Loadв„ў provides very-high efficiency at light
loads and ultra-fast transient response which makes the
MIC23153 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
В®
capacitors. The tiny 2.5mm x 2.5mm Thin MLF package
saves precious board space and requires only four
external components.
The MIC23153 is designed for use with a very-small
inductor, down to 0.47ВµH, and an output capacitor as small
as 2.2 ВµF that enables a total solution size, less than 1mm
in height.
The MIC23153 has a very-low quiescent current of 22ВµA
and achieves a peak efficiency of 93% in continuous
conduction mode. In discontinuous conduction mode, the
MIC23153 can achieve 85% efficiency at 1mA. …