EP5358LUI/EP5358HUI 600mA Synchronous Buck Regulator with Integ
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03541 09/23/2010 Rev: D
EP5358LUI/EP5358HUI
600mA Synchronous Buck Regulator
with Integrated Inductor
RoHS Compliant; Halogen Free
www.enpirion.com
Description
The EP5358xUI (x = L or H) is rated for up to
600mA of continuous output current. The
EP5358xUI integrates MOSFET switches,
control, compensation, and the magnetics in an
advanced 2.5mm x 2.25mm micro-QFN
Package.
Integrated magnetics enables a tiny solution
footprint, low output ripple, low part-count, and
high reliability, while maintaining high efficiency.
The complete solution can be implemented in as
little as 12mm
2
.
The EP5358xUI uses a 3-pin VID to easily select
the output voltage setting. Output voltage
settings are available in 2 optimized ranges
providing coverage for typical V
OUT
settings.
The VID pins can be changed on the fly for fast
dynamic voltage scaling. EP5358LUI further has
the option to use an external voltage divider.
The EP5358xUI is a perfect solution for noise
sensitive and space constrained applications that
require high efficiency.
EP5358xUI
2.2uF
10uF
4.75mm
2.25mm
Figure 1: Total Solution Footprint.
Features
• Integrated Inductor Technology
• 2.5mm x 2.25mm x 1.1mm uQFN package
• Total Solution Footprint 12mm
2
• Low V
OUT
ripple for RF compatibility
• High efficiency, up to 93%
• Up to 600mA continuous output current
• Less than 1µA standby current
• 5 MHz switching frequency
• 3 pin VID for glitch free voltage scaling
• V
OUT
Range 0.6V to V
IN
– 0.25V
• Short circuit and over current protection
• UVLO and thermal protection
• IC level reliability in a PowerSOC solution
Application
• Wireless and RF applications
• Wireless broad band data cards
• Smart phone and portable media players
• Advanced Low Power Processors, DSP, IO,
Memory, Video, Multimedia Engines
V
OUT
2.2uF
PGND
EP5358HUI
ENABLE
PV
IN
V
S0
V
S1
V
S2
V
SENSE
V
OUT
10uF
AGND
AV
IN
V
IN
Figure 2: Typical Application Schematic
Downloaded from Elcodis.com electronic components distributor
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