EUP3427A Datasheet, PDF (1/1 Pages) Eutech Microelectronics Inc – 4A, Synchronous Step-Down Converter

EUP3427A
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4A, Synchronous Step-Down Converter
DESCRIPTION
The EUP3427A is a 1 MHz fixed frequency
synchronous, current-mode, step-down dc-dc converter
capable of providing up to 4A output current. The
EUP3427A operates from an input range of 2.7V to
5.5V and provides a regulated output voltage from 0.6V
to 5V. The internal synchronous power switch improves
efficiency and eliminates the need for an external
Schottky diode. The EUP3427A can be externally set
for either forced PWM continuous mode or pulse
skipping mode. Forced PWM operation provides very
low output ripple voltage for noise sensitive
applications while pulse skipping operation improves
light load efficiency by reducing switching loss.
The EUP3427A features short circuit and thermal
protection circuits to improve system reliability.
Internally soft-start avoids input inrush current during
startup. The EUP3427A is available in TDFN
3mm × 3mm 10-pin package with the exposed pad.
FEATURES
2.7V to 5.5V Input Voltage Range
High Efficiency up to 96%
4A Available Load Current
62/35mΩ Integrated PFET/NFET Switches
1MHz Switching Frequency
100% Duty Cycle Low Dropout Operation
Short Circuit and Thermal Protection
Integrated UVLO and Power Good
Excellent Line and Load Transient Response
Available in 10-Pin 3mm × 3mm TDFN Package
RoHS Compliant and 100% Lead(Pb)-Free
Halogen-Free
APPLICATIONS
High Performance DSPs, FPGAs, ASICs and
Microprocessors
Base Station, Telecom, and Networking
Equipment Power Supplies
ePC and NetPCs
Typical Application Circuit
Figure1. Typical Application Circuit
DS3427A Ver1.0 July 2015
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