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MIC45116 Arkusz danych(PDF) 1 Page - Microchip Technology |
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MIC45116 Arkusz danych(HTML) 1 Page - Microchip Technology |
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1 / 42 page  2016 Microchip Technology Inc. DS20005571A-page 1 MIC45116 Features • Up to 6A Output Current • >93% Peak Efficiency • Output Voltage of 0.8V to 85% of Input with ±1% Accuracy • Fixed 600 kHz Switching Frequency • Enable Input and Open-Drain Power Good Output • HyperLight Load® (MIC45116-1) Improves Light Load Efficiency • Hyper Speed Control® (MIC45116-2) Architecture Enables Fast Transient Response • Supports Safe Start-Up into Pre-Biased Output • –40°C to +125°C Junction Temperature Range • Thermal Shutdown Protection • Short-Circuit Protection with Hiccup Mode • Adjustable Current Limit • Available in 52-Pin 8 mm x 8 mm x 3 mm QFN Package Applications • High Power Density Point-of-Load Conversion • Servers, Routers, Networking, and Base Stations • FPGAs, DSP, and Low-Voltage ASIC Power Supplies • Industrial and Medical Equipment General Description The MIC45116 is a synchronous step-down regulator module, featuring a unique adaptive ON-time control architecture. The module incorporates a DC/DC controller, power MOSFETs, bootstrap diode, bootstrap capacitor, and an inductor in a single package; simplifying the design and layout process for the end user. This highly integrated solution expedites system design and improves product time-to-market. The internal MOSFETs and inductor are optimized to achieve high efficiency at a low output voltage. The fully optimized design can deliver up to 6A current under a wide input voltage range of 4.75V to 20V without requiring additional cooling. The MIC45116-1 uses HyperLight Load® (HLL) which maintains high efficiency under light load conditions by transitioning to variable frequency, discontinuous- mode operation. The MIC45116-2 uses Hyper Speed Control® architecture which enables ultra-fast load transient response, allowing for a reduction of output capacitance. The MIC45116 offers 1% output accuracy that can be adjusted from 0.8V to 85% of the input (PVIN) with two external resistors. Additional features include thermal-shutdown protection, adjustable current limit, and short-circuit protection. The MIC45116 allows for safe start-up into a pre-biased output. Typical Application Circuit MIC45116 8x8x3 QFN MIC45116 V IN C IN 10k PVDD 5VDD PG PVIN VIN EN PGND ILIM SW FB VOUT V OUT C OUT C FF R FB1 R FB2 R INJ C INJ R LIM 20V/6A DC/DC Power Module |
Podobny numer części - MIC45116 |
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Podobny opis - MIC45116 |
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