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MIC45404 Datasheet(PDF) 1 Page - Microchip Technology |
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MIC45404 Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 32 page  2015 Microchip Technology Inc. DS20005478A-page 1 MIC45404 Features • Input Voltage Range: 4.5V to 19V • Output Current: Up to 5A • 82% Peak Efficiency at 12 VIN, 0.9 VOUT • Pin-Selectable Output Voltages: 0.7V, 0.8V, 0.9V, 1.0V, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V • ±1% Output Voltage Accuracy • Supports Safe Pre-Biased Start-up • Pin-Selectable Current Limit • Pin-Selectable Switching Frequency • Internal Soft Start • Thermal Shutdown • Hiccup Mode Short-Circuit Protection • Available in a 54-Lead 6 mm x 10 mm QFN Package • Ultra-Low Profile: 2.0 mm Height • -40°C to +125°C Junction Temperature Range Applications • Servers, Data Storage, Routers and Base Stations • FPGAs, DSP and Low-Voltage ASIC Power General Description The MIC45404 device is an ultra-low profile, synchro- nous step-down regulator module, featuring a unique 2.0 mm height. The module incorporates a DC-to-DC regulator, bootstrap capacitor, high-frequency input capacitor and an inductor in a single package. The module pinout is optimized to simplify the Printed Circuit Board (PCB) layout process. This highly integrated solution expedites system design and improves product time to market. The inter- nal MOSFETs and inductor are optimized to achieve high efficiency at low output voltage. Due to the fully optimized design, MIC45404 can deliver up to 5A current with a wide input voltage range of 4.5V to 19V. The MIC45404 is available in a 54-lead 6 mm x 10 mm x 2.0 mm QFN package with a junction operat- ing temperature range from -40 C to +125C, which makes an excellent solution for systems in which PCB real-estate and height are important limiting factors, and air flow is restricted. Typical Application MIC45404 12V 5A DC-to-DC Converter VIN OUT VIN 4.5V to 19V FREQ VDDA VOSET1 PG GND GND VOSET0 COMP EN/DLY OUTSNS MIC45404 VDDA Power-Good Enable VDDA VDDA Output Voltage Selection VDDA Frequency Selection ILIM VDDA Current Limit Selection VOUT 19V 5A Ultra-Low Profile DC-to-DC Power Module |
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