Microchip, MIC23050-SYML-TR Switching Regulator, 1-Channel 600mA 8-Pin, MLF

The Microchip MIC23050-SYML-TR is a high efficiency 600mA PWM synchronous buck (step-down) regulator featuring Hyper Light Load®, a patent pending switching scheme that offers best in class light load efficiency and transient performance while providing very small external components and low output ripple at all loads. The MIC23050-SYML-TR has a very low typical quiescent current draw of 20μA and can achieve over 89% efficiency even at 1mA. The device allows operation with a tiny inductor ranging from 0.47μH or 2.2μH while using small output capacitors, enabling a sub 1mm height solution. In contrast to traditional light load schemes Hyper Light Load® architecture does not need to trade off control speed to obtain low standby currents and in doing so the device only needs a small output capacitor to absorb the load transient as the powered device goes from light load to

Fixed output voltage
Ultra fast transient response
Low voltage output ripple
Micro power shutdown