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EN5364QI-T

Description
feature rich 6A voltage mode synchronous buck pwm DC-DC converter with integrated inductor
File Size422KB,19 Pages
ManufacturerENPIRION
Websitehttp://www.enpirion.com/
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EN5364QI-T Overview

feature rich 6A voltage mode synchronous buck pwm DC-DC converter with integrated inductor

EN5364QI
Feature Rich 6A Voltage Mode
Synchronous Buck PWM DC-DC Converter
with Integrated Inductor
RoHS Compliant - Halogen Free
Description
The EN5364QI is a Power Supply on a Chip
(PwrSoC) DC to DC converter with integrated
inductor, PWM controller, MOSFETS, and
compensation providing the smallest possible
solution size in a 68 pin QFN module. The
switching frequency can be synchronized to an
external clock or other EN5364QIs with the
added capability of phasing multiple EN5364QIs
as desired. Other features include precision
ENABLE threshold, pre-bias monotonic start-up,
margining, and parallel operation.
EN5364QI is specifically designed to meet the
precise voltage and fast transient requirements
of present and future high-performance
applications such as set-top boxes/HD DVRs,
LAN/SAN adapter cards, audio/video equipment,
optical networking, multi-function printers, test
and measurement, embedded computing,
storage,
and
servers.
Advanced
circuit
techniques, ultra high switching frequency, and
very advanced, high-density, integrated circuit
and proprietary inductor technology deliver high-
quality, ultra compact, non-isolated DC-DC
conversion. Operating this converter requires
very few external components.
The Enpirion integrated inductor solution
significantly helps to reduce noise. The complete
power converter solution enhances productivity
by offering greatly simplified board design, layout
and manufacturing requirements.
All Enpirion products are RoHS compliant and
lead-free manufacturing environment compatible.
Typical Application Circuit
V
IN
47μF
PVIN
AVIN
ENABLE
PGND
SS
VFB
VOUT
V
OUT
47μF
15nF
PGND
AGND
Figure 1: Typical Application Schematic
Features
Integrated Inductor, MOSFETS, Controller in
a 8 x 11 x 1.85mm package
Wide input voltage range of 2.375V to 6.6V.
> 20W continuous output power.
High efficiency, up to 93%.
Output voltage margining
Monotonic output voltage ramp during start-
up with pre-biased loads.
Precision Enable pin for accurate sequencing
of power converters and Power OK signal.
Programmable soft-start time.
Soft Shutdown.
4 MHz operating frequency with ability to
synchronize to an external system clock or
other EN5364’s.
Programmable phase delays between
synchronized units to allow reduction of
input ripple.
Master/slave configuration for paralleling
multiple EN5364’s for greater power output.
Under Voltage Lockout, Over-current, Short
Circuit, and Thermal Protection
RoHS compliant, MSL level 3, 260C reflow.
©Enpirion
2009 all rights reserved, E&OE
03544
1
8/21/2009
www.enpirion.com
Rev:B

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