Datasheet Microchip MIC49300-0.9WR — Datenblatt

MIC4930
Hyper Speed ControlВ® 3A Buck Regulator
Features General Description The MIC4930 is a high-efficiency, 3A synchronous
buck regulator with ultra-fast transient response
perfectly suited for supplying processor core and I/O
voltages from a 5V or 3.3V bus. The MIC4930 provides
a switching frequency up to 3.3 MHz while achieving
peak efficiencies up to 95%. An additional benefit of
high-frequency operation is very low output ripple
voltage throughout the entire load range with the use of
a small output capacitor. The MIC4930 is designed for
use with a very small inductor, down to 1 ОјH, and an
output ceramic capacitor as small as 10 ОјF without the
need for external ripple injection. A wide range of
output capacitor types and values can also be
accommodated. Input Voltage: 2.7V to 5.5V
3A Output Current
Up To 95% Efficiency
Up To 3.3 MHz Operation
Safe Start-Up into a Pre-Biased Output
Power Good Output
Ultra-Fast Transient Response
Low Output Voltage Ripple …