EC3221-1.5MHz, Dual 1.5A, Syn. Step-Down Regualtor

General description

The EC3221 are high-efficiency 1.5MHz synchronous step-down  DC-DC  regulator  ICs  capable of delivering up to  1.5A output currents, respectively.  The EC3221 operates over  a  wide  input voltage range from 3V to 5.5V  and integrate main switch  and synchronous  switch  with  very  low  RDS(ON) to minimize the conduction loss. Low output voltage ripple and small external inductor And capacitorsizes   are achieved with 1.5MHz switching frequency.


● low Rds(on) for internal switches (top/bottom):
● 3-5.5V input voltage range
● 1.5MHz switching frequency minimizes the external components
● Internal softstart limits the inrush current
● 100% dropout operation
● Compact and thermally enhanced package:
● SOP-8(Exposed PAD)


● Card GPS
● Access Point Router
● Set Top Box

Pin Configurations

Ordering info

Typical Applications circuit