LY9890 5V1A 升压IC

尚亿微电子原装现货供应5V 1A 升压芯片LY9890

The LY9890 is a compact, high efficiency, and 
low voltage step-up DC/DC converter including 
an error amplifier, ramp generator, comparator, 
switch p* element and driver in which providing 
a stable and high efficient operation over a wide 
range of load currents. It operates in stable 
waveforms without external compensation. 
The low start-up input voltage below 1.6V. The 
high switching rate minimized the size of external 
components. Besides, the 5μA low quiescent 
current together with high efficiency maintains 
long battery lifetime. 
The output voltage is set with two external 
resistors.