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MIC2171WU-TR Scheda tecnica(PDF) 1 Page - Microchip Technology |
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MIC2171WU-TR Scheda tecnica(HTML) 1 Page - Microchip Technology |
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1 / 24 page  2022 Microchip Technology Inc. and its subsidiaries DS20006355A-page 1 MIC2171 Features • 2.5A, 65V Internal Switch Rating • 3V to 40V Input Voltage Range • Current Mode Operation, 2.5A Peak • Internal Cycle-by-Cycle Current Limit • Twice the Frequency of the LM2577 • Low External Electronic Components Count • Suitable for Most Switching Topologies • 7 mA Quiescent Current (Operating) • Fits LT1171/LM2577 TO-220 and TO-263 Sockets Applications • Laptop/Palmtop Computers • Battery Operated Equipment • Handheld Instruments • Off-Line Converter up to 50W (Requires External Power Switch) • Predriver for Higher Power Capability General Description The MIC2171 is a complete 100 kHz SMPS current-mode controller with an internal 65V 2.5A power switch. Although primarily intended for voltage step-up applications, the floating switch architecture of the MIC2171 makes it practical for step-down, inverting, and Cuk configurations, as well as isolated topologies. Operating from 3V to 40V, the MIC2171 draws only 7 mA of quiescent current, making it attractive for battery-operated applications. The MIC2171 is available in a 5-pin TO-220 or TO-263 package that allows –40°C to +85°C ambient temperature operation. Package Types 5-Pin TO-220 (T) 5-Pin TO-263 (U) Tab GND 5 4 3 2 1 IN SW GND FB COMP Tab GND 5 4 3 2 1 IN SW GND FB COMP 100 kHz, 2.5A Switching Regulator |
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