EUP3482 Datasheet, PDF (1/1 Pages) Eutech Microelectronics Inc – 2A, 30V, 340KHz Synchronous Step-Down Converter

EUP3482
2A, 30V, 340KHz Synchronous
Step-Down Converter
DESCRIPTION
The EUP3482 is a synchronous current mode buck
regulator capable of driving 2A continuous load current
with excellent line and load regulation. The EUP3482
can operate with an input range 4.5V to 30V and the
output can be externally set from 0.923V to 12V 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 EUP3482 require a minimum number of external
components.
Typical Application Circuit
FEATURES
z 2A Output Current
z 35V Input Surge Protection
z Integrated 175mΩ/125mΩ DMOS Switches
z 4.5V to 30V Input Operating Range
z Output Adjustable from 0.923V to 12V
z Up to 93% Efficiency
z 1µA Shutdown Current
z Fixed 340KHz Frequency
z Programmable Soft-Start
z Thermal Shutdown and Overcurrent Protection
z Input Supply Overvoltage and Undervoltage
Lockout
z Available in SOP-8 Package
z RoHS Compliant and 100% Lead(Pb)-Free
Halogen-Free
APPLICATIONS
z Distributed Power Systems
z Networking Systems
z PC Monitors
z Portable Electronics
DS3482 Ver1.0 Oct. 2009
Figure 1. 12V to 3.3V/5V Application Circuit
1