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EN5336QI Datasheet, PDF (1/13 Pages) Enpirion, Inc. – 3A Voltage Mode Synchronous Buck PWM DC-DC Converter with Integrated Inductor External Feedback Output Voltage Programming | |||
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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
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