EN6337QI
3A Voltage Mode Synchronous Buck PWM
DC-DC Converter with Integrated Inductor
Description
The EN6337QI is a Power System on a Chip
(PowerSoC) DC-DC converter. It integrates
MOSFET
switches,
small-signal
circuits,
compensation, and the inductor in an advanced
4mm x 7mm QFN package.
The EN6337QI 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
distributed power architecture. The device’s
advanced circuit techniques, ultra high switching
frequency, and proprietary integrated inductor
technology deliver high-quality, ultra compact,
non-isolated DC-DC conversion.
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.
Features
•
•
•
•
Integrated Inductor, MOSFETS, Controller
Minimal external components.
Up to 3A Continuous Output Current
Capability.
2 MHz operating frequency. Switching
frequency can be phase locked to an external
clock.
High efficiency, up to 95%.
Wide input voltage range of 2.5V to 6.6V.
Light Load Mode with programmable set
point.
Output Enable pin and Power OK signal.
Programmable soft-start time.
Under Voltage Lockout, Over Current, Short
Circuit and Thermal Protection.
RoHS compliant, MSL level 3, 260C reflow.
•
•
•
•
•
•
•
Application
•
•
•
•
Point of load regulation for processors, DSPs,
FPGAs, and ASICs
Noise sensitive applications such as A/V, RF
and Gbit I/O
Low voltage, distributed power architectures
such as 0.8V, 1.0V, 1.2, 2.5V, 3.3V, 5V rails
Blade servers, RAID storage systems,
LAN/SAN adapter cards, wireless base
stations, industrial automation, test and
measurement, embedded computing,
communications, and multi-function printers.
Figure 1: Total Solution Footprint PWM mode
(Not to scale) Total Area
≈
75 mm
2
•
•
Ripple sensitive applications
Beat frequency sensitive applications
www.enpirion.com
05800
6/17/2011
Rev:
B