DESCRIPTION
The EUP3484 is a synchronous current mode buck
regulator capable of driving 3A continuous load current
with excellent line and load regulation. The EUP3484
can operate with an input range 4.5V to 30V and the
output can be externally set from 0.925V to 20V with a
resistor divider.
Fault condition protection includes cycle-by-cycle
current limiting and thermal shutdown. In shutdown
mode the regulator draws 1µA of supply current.
Programmable soft-start minimizes the inrush supply
current and the output overshoot at initial startup.
The EUP3484 require a minimum number of external
components.

FEATURES

3A Output Current

220ns Minimum On Time

35V Input Surge Protection

Integrated 160mΩ/110mΩ DMOS Switches

4.5V to 30V Input Operating Range

Output Adjustable from 0.925V to 20V

Up to 95% Efficiency

1µA Shutdown Current

Fixed 340KHz Frequency

Programmable Soft-Start

Thermal Shutdown and Overcurrent Protection

Input Supply Overvoltage and Undervoltage
Lockout

Available in SOP-8 (EP) Package

RoHS Compliant and 100% Lead(Pb)-Free
Halogen-Free

APPLICATIONS

Distributed Power Systems

Networking Systems

PC Monitors

Portable Electronics