EUP3284 Datasheet, PDF (1/1 Pages) Eutech Microelectronics Inc – 3A, 24V, 340KHz Synchronous Step-Down Converter

EUP3284
3A, 24V, 340KHz Synchronous
Step-Down Converter
DESCRIPTION
The EUP3284 is a synchronous current mode buck
regulator capable of driving 3A continuous load current
with excellent line and load regulation. The EUP3284
can operate with an input range 4.5V to 24V and the
output can be externally set from 0.92V to 20V with a
resistor divider.
Fault condition protection includes cycle-by-cycle
current limiting and thermal shutdown. In shutdown
mode the regulator draws 3µA of supply current.
Programmable soft-start minimizes the inrush supply
current and the output overshoot at initial startup.
Automatic pulse skipping mode operation increase
efficiency at light loads.
The EUP3284 require a minimum number of external
components.
FEATURES
3A Output Current
Automatic Pulse Skipping Mode at Light Load
Integrated 142mΩ/103mΩ DMOS Switches
4.5V to 24V Input Operating Range
Output Adjustable from 0.92V to 20V
Up to 94% Efficiency
3µA Shutdown Current
Fixed 340KHz Frequency
Programmable Soft-Start
Thermal Shutdown and Overcurrent Protection
Input Supply Undervoltage Lockout
220ns Minimum On Time
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
Typical Application Circuit
DS3284 Ver1.4 June 2016
Figure 1. 12V to 3.3V/5V Application Circuit
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