Power Management Design Guide for Altera® FPGAs and CPLDs ...
Power Management Design Guide for Altera® FPGAs and CPLDs ...
Power Management Design Guide for Altera® FPGAs and CPLDs ...
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Featured power products<br />
LM5070 <strong>Power</strong>-over-Ethernet single-chip solution<br />
• Fully compliant with IEEE 802.3af PoE st<strong>and</strong>ards<br />
• Delivers up to 14W of power from regular<br />
CAT-5 Ethernet cable<br />
• <strong>Power</strong>s all Altera Cyclone <strong>and</strong> most Stratix <strong>and</strong><br />
Stratix II FPGA designs without the need <strong>for</strong> wall<br />
adapters, batteries or any external power supply<br />
• Industrial temperature range<br />
• Evaluation boards <strong>and</strong> reference designs available<br />
• Available in TSSOP-16 <strong>and</strong> tiny, thermally<br />
enhanced LLP-16 packaging<br />
LM5070 <strong>Power</strong>-over-Ethernet powered device system<br />
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LM3670/71 600 mA SOT-23 synchronous buck regulators<br />
• Requires only 3 external components<br />
• High switching frequency, ceramic capacitors<br />
<strong>and</strong> SOT23-5 package enables an extremely<br />
small total solution<br />
• 600 mA, 2 MHz (LM3671) <strong>and</strong><br />
350 mA, 1 MHz (LM3670) versions available<br />
• Can achieve 95% efficiency with just a 2.2 µH<br />
small inductor<br />
• Automatic PWM-PFM mode switching enables<br />
longer battery life <strong>and</strong> extended st<strong>and</strong>-by times<br />
• Fixed output voltage <strong>and</strong> adjustable versions<br />
available<br />
• Industrial temperature range<br />
• Ideal <strong>for</strong> CPLD <strong>and</strong> low-power FPGA supplies<br />
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LM3671 Simple block diagram<br />
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LM3671 Efficiency vs. load current<br />
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