News Article
400 mA Low-Noise Step-Down Converter in a Micro-Inductor Package
Skyworks Solutions, Inc has introduced a µSwitcher step-down converter for space-constrained, portable applications including Bluetooth headsets, smartphones, digital cameras, hard-disk drives, portable media players and other battery-operated handheld computers/peripherals.
The SKY87250 μSwitcherTM step-down converter delivers up to 400mA to support an adjustable 0.6V to VIN output from 2.7V to 5.5V input supply. Its low supply current, small size, and high switching frequency make the SKY87250 suitable for portable applications.
The SKY87250 maintains a low 40μA no load quiescent current. The 2.0MHz switching frequency minimizes the output capacitance requirement while keeping switching losses low. The company says the The SKY87250 feedback and control delivers excellent load regulation and transient response with a small output capacitor. The SKY87250 maintains high efficiency throughout the load range. The SKY87250's unique low-noise light-load architecture produces reduced ripple and spectral noise. Over-temperature and short-circuit protection safeguard the SKY87250 and system components from damage.
The ultra-small 8-pin, 2.4mm x 2.4mm DLN package converter footprint, integrated inductor, and minimal capacitance requirements make the SKY87250 suitable for compact designs.
