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EN5339QI Datasheet(PDF) 1 Page - Altera Corporation |
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EN5339QI Datasheet(HTML) 1 Page - Altera Corporation |
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1 / 20 page  Enpirion ® Power Datasheet EN5339QI 3A PowerSoC Low Profile Synchronous Buck DC-DC Converter with Integrated Inductor www.altera.com/enpirion Page 1 Description The EN5339QI is a highly integrated, low profile, highly efficient, 3A synchronous buck power system on a chip (PowerSoC). The device features an advance integrated inductor, integrated MOSFETs, a PWM voltage-mode controller, and internal compensation providing the smallest possible solution size. The EN5339QI PowerSoC is designed specifically to meet the driving demand for higher power density by providing a fully integrated buck converter into a tiny 4x6x1.1mm 24-pin QFN package. It features high efficiency, excellent line and load regulation and guarantees the full 3A output current over temperature. The EN5339QI operates at high switching frequency and allows for the use of tiny MLCC capacitors. It also enables a very wide control loop bandwidth providing excellent transient performance and reduced output impedance. The internal compensation is designed for unconditional stability across all operating conditions. The Altera Enpirion integrated inductor solution significantly helps to reduce noise. The complete power converter solution enhances productivity by offering greatly simplified board design, layout and manufacturing requirements. All Altera Enpirion products are RoHS compliant and lead-free manufacturing environment compatible. Features • Integrated Inductor • Solution Footprint as Small as 55 mm2 • Low Profile, 1.1mm • High Reliability Solution: 280k Years MTBF • High Efficiency, up to 95% • Low Output Ripple Voltage; <5mV P-P Typical • ±3% Output Variation Over Line, Load, Temp • 2.4 V to 5.5 V Input Voltage Range • 3A Continuous Output Current Capability • Output Enable and Power OK Signal • Under Voltage Lockout, Over Current, Short Circuit, and Thermal Protection • RoHS Compliant; Halogen Free; 260°C Reflow Applications • Applications with Low Profile Requirement such as SSD and Embedded Computing • SAN/NAS Accelerator Appliance • Controllers, Raid, Processors, Network Processors, DSPs’ FPGAs, and ASICs • Noise Sensitive Applications EN5339QI VOUT PVIN AGND VIN POK TST0 TST1 TST2 ENABLE AVIN PGND CIN 22µF COUT 3x 22µF or 2x 47µF 100k VOUT PGND Ra Rb VFB POK Ca 1µF Figure 1. Simplified Applications Circuit Figure 2. Highest Efficiency in Smallest Solution Size 0 10 20 30 40 50 60 70 80 90 100 0 0.5 1 1.5 2 2.5 3 OUTPUT CURRENT (A) Efficiency vs. Output Current VOUT = 2.5V VOUT = 1.2V CONDITIONS VIN = 3.3V Actual Solution Size 55mm2 06903 June 26, 2015 Rev E |
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