EN5395QI
9A Synchronous Buck PWM DC-DC
Converter with Integrated Inductor
3-Pin VID Output Voltage Select
RoHS Compliant
Description
The EN5395QI is a Power System on a Chip
(PowerSoC) DC-DC converter. It is specifically
designed to meet the precise voltage and fast
transient requirements of present and future
high-performance, low-power processor, DSP,
FPGA, ASIC, memory boards, and system level
applications in a distributed power architecture.
Advanced circuit techniques, ultra high switching
frequency,
and
innovative,
high-density,
integrated circuit and proprietary inductor
technology deliver high-quality, ultra compact,
non-isolated DC-DC conversion. Operating this
converter requires as few as five external
components that include small value input and
output ceramic capacitors and a soft-start
capacitor.
The Enpirion solution significantly helps in
system design and productivity by offering greatly
simplified
board
design,
layout
and
manufacturing requirements. In addition, a
reduction in the number of vendors required for
the complete power solution helps to enable an
overall system cost savings.
Features
10mm
12mm
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Applications
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Area constrained applications
Noise sensitive applications
Low voltage, distributed power architectures
with 2.5V, 3.3V or 5V rails
Computing
Enterprise Storage
Broadband, networking, LAN/WAN, optical
DSL, STB, DVR, DTV, Industrial PC
Integrated Inductor Technology:
Integrated
Inductor, MOSFETS, Controller in a 10 x 12 x
1.85mm package
Low Part Count: only 5 MLC Capacitors.
Up to 30W continuous output power.
Low output impedance optimized for
≤
90 nm
Master/slave configuration for paralleling.
5MHz operating frequency.
High efficiency, up to 93%.
Wide input voltage range of 2.375V to 5.5V.
3-Pin VID output voltage select to choose one
of 7 pre-programmed output voltages.
Output Enable pin and Power OK signal.
Programmable soft-start time.
Adjustable over-current protection.
Thermal shutdown, short circuit, over-voltage
and under-voltage protection.
RoHS compliant, MSL level 3, 260C reflow.
Typical Application Circuit
V
IN
2 x 47µF
1
PVIN
AVIN
VS0
VS1
VS2
VID Output
Voltage Select
POK
SS
VSENSE
VOUT
V
OUT
2 x 47µF
Ordering Information
Part Number
EN5395QI
EN5395QI-E
Temp Rating (°C)
Package
-40 to +85
58-pin QFN T&R
QFN Evaluation Board
15nF
AGND
PGND
Figure 1. Simple Layout.
©Enpirion
2009 all rights reserved, E&OE
02392
1
11/12/2009
www.enpirion.com
Rev:E
ENPIRION [ ENPIRION, INC. ]
