Microchip Technology MIC23050-SYML-TR

Description
The MIC23050 is a high-efficiency, 600mA, PWM, synchronous buck (step-down) regulator featuring the HyperLight Load™ patented switching scheme. This scheme offers best-in-class light load efficiency and transient performance while providing very-small components and low output ripple at all loads. The MIC23050 also 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 to 2.2pH and uses a small output capacitor that enables a sub-1mm height.

Features
Input voltage: 2.7V to 5.5V
600mA output current
HyperLight Load™
Fixed output voltage from 0.72V to 3.3V
Ultra-fast transient response
20µA typical quiescent current
4MHz in PWM in constant-current mode
0.47μH to 2.2μH inductor
Low voltage output ripple
25mVpp in HyperLight Load™ mode
3mV output voltage ripple in full PWM mode
>93% efficiency
89% at 1mA
Micropower shutdown
Available in 8-pin 2mm x 2mm MLF®
-40°C to 125°C junction temperature range

Applications
Cellular phones
Digital cameras
Portable media players
Wireless LAN cards
WiFi/WiMax/WiBro modules
USB-powered devices