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EP5358LUI Datasheet(PDF) 1 Page - Enpirion, Inc. |
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EP5358LUI Datasheet(HTML) 1 Page - Enpirion, Inc. |
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1 / 14 page  03541 5/29/2009 Rev:A EP5358LUI/EP5358HUI 500mA Synchronous Buck Regulator with Integrated Inductor RoHS Compliant; Halogen Free www.enpirion.com Description The EP5358xUI (x = L or H) is a 500mA PowerSOC. 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 15mm2. 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 VOUT 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. EN5358xUI 2.7 mm 5.4 mm Figure 1: Total Solution Footprint (Not to Scale) Features • Integrated Inductor Technology • 2.5mm x 2.25mm x 1.1mm uQFN package • Total Solution Footprint < 15mm2 • Low VOUT ripple for RF compatibility • High efficiency, up to 93% • 500mA continuous output current • Less than 1µA standby current • 5 MHz switching frequency • 3 pin VID for glitch free voltage scaling • VOUT Range 0.6V to VIN – 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 |
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