EC3221 Datasheet, PDF (1/16 Pages) E-CMOS Corporation – 1.5MHz, Dual 1.5A, Synchronous Step-Down Regulator

1.5MHz, Dual 1.5A, Synchronous
Step-Down Regulator
EC3221
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 capacitor sizes are achieved with 1.5MHz switching
frequency.
Features
● 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)
Applications
● LCD TV WiFi
Card GPS
● Access Point Router
●Set Top Box
Package Types
Figure 1. Package Types of EC3221
E-CMOS Corp. (www.ecmos.com.tw)
Page 1 of 16
3F18N-Rev.P001