6A Voltage Mode Synchronous Buck PWM
DC-DC Converter with Integrated Inductor
External Output Voltage Programming
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
The Enpirion integrated inductor solution
significantly helps in low noise system design
and productivity by offering greatly simplified
board design, layout and manufacturing
All Enpirion products are RoHS compliant and
lead-free manufacturing environment compatible.
Integrated INDUCTOR, MOSFETS, Controller
that of competing solutions.
Low Part Count: only 3 MLCC Capacitors.
Up to 20W continuous output power.
Low output impedance optimized for
Master/slave configuration for paralleling.
5MHz operating frequency.
High efficiency, up to 93%.
Wide input voltage range of 2.375V to 5.5V.
External resistor divider output voltage select.
Output enable pin and Power OK signal.
Programmable soft-start time.
Optimized for low noise/EMI design.
Under-Voltage Lockout, Thermal Shutdown,
Output Overvoltage, Over Current, and Short
RoHS compliant, MSL level 3, 260C reflow.
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
-40 to +85
58-pin QFN T&R
QFN Evaluation Board
Figure 1. Simple Layout.
*Optimized PCB Prototype
Layout file downloadable from the Enpirion Website to assure first pass design success.