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MIC24046-HYFL Datasheet(PDF) 1 Page - Micrel Semiconductor |
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MIC24046-HYFL Datasheet(HTML) 1 Page - Micrel Semiconductor |
1 / 24 page MIC24046-H Pin-Programmable, 4.5V − 19V, 5A Step-Down Converter Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com July 7, 2015 Revision 1.1. General Description Micrel’s MIC24046-H is a pin-programmable, high- efficiency, wide-input range, 5A, synchronous step-down regulator. The MIC24046-H is perfectly suited for multiple- voltage rail application environments typically found in computing and telecommunication systems. It can be programmed by pin strapping various parameters, such as output voltage, switching frequency, and current-limit values. The pin-selectable switching frequency, valley- current-mode control technique, high-performance error amplifier, and external compensation allow for the best tradeoffs between high-efficiency and the smallest possible solution size. The MIC24046-H is pin-out compatible with its I 2C- programmable counterparts from the same family. The MIC24046-H is available in a thermally-efficient, space-saving, 20-pin 3mm × 3mm QFN package with an operating junction temperature range of –40 °C to +125°C. Datasheets and support documentation are available on Micrel’s website at: www.micrel.com. Features • 4.5V to 19V input voltage range • 5A (maximum) output current • High efficiency (>90%) • Pin-selectable output voltages: − 0.7V, 0.8V, 0.9V, 1.0V, 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V • ±1% output voltage accuracy • Supports safe start-up with pre-biased output • Pin-selectable current limit and switching frequency • Internal soft-start and thermal shutdown protection • Hiccup-mode short-circuit protection • Available in a 20-pin 3mm × 3mm QFN package • –40°C to +125°C junction temperature range Applications • Servers, data storage, routers, and base stations • FPGAs, DSP, and low-voltage ASIC power Typical Application MIC24046-H 12VIN 5A DC-to-DC Converter |
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