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MIC2126 Datasheet(PDF) 1 Page - Microchip Technology |
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MIC2126 Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 34 page  2015 Microchip Technology Inc. DS20005459B-page 1 MIC2125/6 Features • Hyper Speed Control Architecture Enables: - High delta V operation (VIN = 28V and VOUT = 0.6V) - Any Capacitor™ stable • 4.5V to 28V Input Voltage • Adjustable Output Voltage from 0.6V to 24V • 200 kHz to 750 kHz Programmable Switching Frequency • HyperLight Load® (MIC2125) • Hyper Speed Control® (MIC2126) • Enable Input and Power Good Output • Built-in 5V Regulator for Single-Supply Operation • Programmable current limit and “hiccup” mode short-circuit protection • 7 ms internal soft-start, internal compensation, and thermal shutdown • Supports Safe Start-Up into a Prebiased Output • –40°C to +125°C Junction Temperature Range • Available in 16-pin, 3 mm × 3 mm QFN Package Applications • Networking/Telecom Equipment • Base Stations, Servers • Distributed Power Systems • Industrial Power Supplies General Description The MIC2125 and MIC2126 are constant-frequency synchronous buck controllers featuring a unique adaptive ON-time control architecture. The MIC2125/6 operate over an input voltage range from 4.5V to 28V and can be used to supply load current up to 25A. The output voltage is adjustable down to 0.6V with a guaranteed accuracy of ±1%. The device operates with programmable switching frequency from 200 kHz to 750 kHz. HyperLight Load® architecture provides the same high efficiency and ultra-fast transient response as the Hyper Speed Control® architecture under medium to heavy loads. It also maintains high efficiency under light load conditions by transitioning to variable frequency, discontinuous conduction mode operation. The MIC2125/6 offer a full suite of features to ensure protection of the IC during fault conditions. These include undervoltage lockout to ensure proper operation under power-sag conditions, internal soft-start to reduce inrush current, “hiccup” mode short-circuit protection, and thermal shutdown. Package Type MIC2125/6 16-Pin 3 mm x 3 mm QFN (ML) VDD PVDD ILIM DL AGND NC OVP BST EP 17 1 2 3 4 56 7 8 12 11 10 9 16 15 14 13 28V Synchronous Buck Controllers Featuring Adaptive ON-Time Control |
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Similar Description - MIC2126 |
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