EP5357XUI Datasheet, PDF (1/19 Pages) Altera Corporation – 600mA PowerSoC Synchronous Buck Regulator With Integrated Inductor

Enpirion^® Power Datasheet
EP5357xUI 600mA PowerSoC
Synchronous Buck Regulator
With Integrated Inductor
Description
The EP5357xUI (x = L or H) is a 600mA
PowerSoC. The EP5357xUI integrates MOSFET
switches, control, compensation, and the
magnetics in an advanced 2.5mm x 2.25mm
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 14mm².
A proprietary light load mode (LLM) provides high
efficiency in light load conditions.
The EP5357xUI 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. EP5357LUI further has
the option to use an external voltage divider.
Features
• Integrated Inductor Technology
• 2.5mm x 2.25mm x 1.1mm package
• Total Solution Footprint 14mm²
• Low V_OUT ripple for RF compatibility
• High efficiency, up to 93%
• 600mA continuous output current
• 55µA quiescent 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
EP5357xUI
AVIN
PVIN
VOUT
4.7uF
EP5357LUI
10uF
VSO
VS1
VS2
ENABLE
LLM
PGND
VSENSE
VFB
AGND
4.75mm
Figure 1: Total Solution Footprint.
Figure 2: Typical Application Schematic.
03409
October 11, 2013
www.altera.com/enpirion
Rev E