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Enpirion
Enpirion

EN5336QI Datasheet Preview

EN5336QI Datasheet

3 Amp Buck Converter

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EN5336QI pdf
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EN5336QI
3A Voltage Mode Synchronous Buck PWM
DC-DC Converter with Integrated Inductor
External Feedback Output Voltage Programming
Description
The EN5336QI is a Power System on Silicon 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,
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
only small value input and output ceramic
capacitors, a soft-start capacitor and a resistor
divider for voltage feedback to set the output
voltage to the desired value.
Features
Integrated INDUCTOR, MOSFETS, Controller
Footprint 1/3rd that of competing solutions.
Minimum external components.
Up to 10W continuous output power.
5MHz operating frequency.
High efficiency, up to 93%.
VOUT accuracy 3% over line, load and temp.
Wide input voltage range of 2.375V to 5.5V.
External resistor divider for voltage feedback
and output voltage selection.
Output enable pin and Power OK signal.
Programmable soft-start time.
Programmable over-current protection.
Thermal shutdown, short circuit, and UVLO
RoHS compliant, MSL level 3, 260C reflow.
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.
All Enpirion products are RoHS compliant and
lead-free manufacturing environment compatible.
Typical Application Circuit
Applications
Point of load regulation for low-power
processors, network processors, DSPs,
FPGAs, and ASICs
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, iPC
Ripple sensitive applications
VIN
22µF
PVIN
AVIN
SS
15 nF
POK
AGND
VOUT
XOV
XFB
PGND
Figure 1. Simple Layout.
VOUT
47µF
Ordering Information
Part Number
EN5336QI-T
EN5336QI-E
Temp Rating
(°C) Package
-40 to +85
44-pin QFN T&R
QFN Evaluation Board
1 www.enpirion.com



Enpirion
Enpirion

EN5336QI Datasheet Preview

EN5336QI Datasheet

3 Amp Buck Converter

No Preview Available !

EN5336QI pdf
Rev 1.2 October 2008
www.DataSheet4U.com
Pin Configuration
Below is a top view diagram of the EN5336QI package.
EN5336QI
NOTE: NC pins are not to be electrically connected to each other or to any external signal, ground, or
voltage. However, they must be soldered to the PCB. Failure to follow this guideline may result in
part malfunction or damage.
Figure 2. Pin-out diagram, top view.
Enpirion 2008 all rights reserved, E&OE
2
www.enpirion.com


Part Number EN5336QI
Description 3 Amp Buck Converter
Maker Enpirion
Total Page 13 Pages
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