EN5336QI Datasheet, PDF (1/15 Pages) Enpirion, Inc. – 3A Voltage Mode Synchronous Buck PWM DC-DC Converter with Integrated Inductor External Feedback Output Voltage Programming

Enpirion^® Power Datasheet
EN5336QI 3A PowerSoC
Voltage Mode Synchronous Buck
With Integrated Inductor
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.
Altera’s 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.
Altera’s Enpirion products are RoHS compliant
and lead-free manufacturing environment
compatible.
Typical Application Circuit
Features
 Integrated INDUCTOR, MOSFETS, Controller
 Footprint 1/3^rd that of competing solutions
 Minimum external components
 Up to 10W continuous output power
 5MHz operating frequency
 High efficiency, up to 93%
 V_OUT accuracy 3% over line, load and temp
 Wide input voltage range of 2.375V to 6.6V
 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
 Output over-voltage protection
 RoHS compliant, MSL level 3, 260C reflow.
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
V_IN
22F
PVIN
AVIN
SS
15 nF
POK
AGND
VOUT
XOV
XFB
PGND
Figure 1. Simple Layout.
V_OUT
47F
Ordering Information
Part Number
EN5336QI
EN5336QI-E
Temp Rating
(°C)
Package
-40 to +85
44-pin QFN T&R
QFN Evaluation Board
1
www.altera.com/enpirion