3A, 1MHz, HIGH EFFICIENCY
DESCRIPTION
The UTC UD05303 is a high-efficiency 1MHz synchronous
step-down DC-DC regulator IC capable of delivering up to 3A
output current. The UTC UD05303 operates over a wide input
voltage ranging form 3~5.5V and integrate main switch and
) to minimize the
synchronous switch with very low R
DS(ON
conduction loss.
Low output voltage ripple and small external inductor and
capacitor sizes are achieved with 1MHz switching provides the
system reset function and facilitates the output sequencing design.
FEATURES
* Low RDS(ON) for internal switches (top/bottom) 100mΩ/70mΩ, 3A
* 3~5.5V input voltage range
* 1MHz switching frequency minimizes the external components
* Internal softstart limits the inrush current
*100% dropout operation
* Output power good indicator
* RoHS compliant and halogen free
* Compact and thermally enhanced SO8 package with exposed paddle |
