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MIC26901 Datasheet(PDF) 1 Page - Microchip Technology |
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MIC26901 Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 39 page  2025-2026 Microchip Technology Inc. and its subsidiaries DS20007047B-page 1 MIC26901 Features • Hyper Speed Control® architecture enables - High Delta V Operation (VIN = 28V and VOUT = 0.8V) - Small Output Capacitance • Input Voltage Range: 4.5V to 28V • Output Current Up to 9A • Up to 95% Efficiency • Adjustable Output Voltage from 0.8V to 5.5V • ±1% FB Accuracy • Any Capacitor™ Stable: Zero-to-High ESR • 600 kHz Switching Frequency • No External Compensation • Power Good (PG) Output • Foldback Current-Limit and “Hiccup Mode” Short-Circuit Protection • Safe Start-Up into Pre-Biased Loads • –40°C to +125°C Junction Temperature Range • Available in a 28-Lead 5 mm x 6 mm VQFN Package Applications • Distributed Power Systems • Communications/Networking Infrastructure • Set-Top Box, Gateways, and Routers • Printers, Scanners, Graphics Cards, and Video Cards General Description The MIC26901 is a constant-frequency, synchronous buck regulator that features a unique adaptive on-time control architecture. The MIC26901 operates over an input supply range of 4.5V to 28V and provides a regulated output of up to 9A of output current. The output voltage is adjustable down to 0.8V with an ensured accuracy of ±1%, and the device operates at a switching frequency of 600 kHz. Microchip’s Hyper Speed Control® architecture allows for ultra-fast transient response while reducing the output capacitance and also makes (High VIN)/(Low VOUT) operation possible. This adaptive tON ripple control architecture combines the advantages of fixed-frequency operation and fast transient response in a single device. The MIC26901 offers a full suite of protection 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, foldback current limit, “hiccup mode” short-circuit protection, and thermal shutdown. An open-drain Power Good (PG) pin is provided. Package Type MIC26901 28-Lead VQFN (JL) (Top View) 28V, 9A Hyper Speed Control® Synchronous DC/DC SuperSwitcher™ II Buck Regulator |
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Similar Description - MIC26901 |
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