EN5365QI
6A Voltage Mode Synchronous Buck PWM
DC-DC Converter with Integrated Inductor
3-Pin VID Output Voltage Select
RoHS Compliant
Halogen Free
Description
This Enpirion solution is a Power System on a
Chip (PowerSoC). 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 very advanced, 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 three external
components that include small value input and
output ceramic capacitors and a soft-start
capacitor.
The Enpirion integrated inductor solution
significantly helps in low noise system design
and productivity by offering greatly simplified
board design, layout and manufacturing
requirements.
All Enpirion products are RoHS compliant and
lead-free manufacturing environment compatible.
Features
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Integrated INDUCTOR, MOSFETS, Controller
Footprint 1/3
rd
that of competing solutions.
Low Part Count: only 3 MLCC Capacitors.
Up to 20W 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.
Optimized for low noise/EMI design.
Thermal shutdown, short circuit, over-voltage
and under-voltage protection.
RoHS compliant, MSL level 3, 260C reflow.
Applications
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Point of load regulation for low-power
processors, network processors, DSPs,
FPGAs, and ASICs
≤
90 nm advanced process loads
Notebook computers, servers, workstations
Broadband, networking, LAN/WAN, optical
Low voltage, distributed power architectures
with 2.5V, 3.3V or 5V rails
DSL, STB, DVR, DTV, Industrial PC
Ripple sensitive applications
Typical Application Circuit
V
IN
47µF
1Ω
PVIN
AVIN
ENABLE
PGND
SS
VSENSE
VOUT
VS0
VS1
VS2
VID Output
Voltage Select
V
OUT
47µF
15nF
AGND
PGND
Ordering Information
Part Number
EN5365QI
EN5365QI-E
Temp Rating
Package
(°C)
-40 to +85
58-pin QFN T&R
QFN Evaluation Board
Figure 1. Simple Layout.
*Optimized PCB Layout file downloadable from the Enpirion Website to assure first pass design success.
03816
9/18/2009
Rev:B
ENPIRION [ ENPIRION, INC. ]
