The Micrel MIC261203-ZA is a constant-frequency, synchronous buck regulator featuring a unique adaptive on-time control architecture. The MIC261203-ZA operates over an input supply range of 4.5V to 28V and provides a regulated output of up to 12A of output current. The output voltage is adjustable down to 0.6V with a guaranteed accuracy of ±1%, and the device operates at a switching frequency of 600kHz.
Hyper Speed Control™ architecture allows for ultra-fast transient response while reducing the output capacitance and also makes High VINLow 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 MIC261203-ZA offers 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, foldback current limit, “hiccup mode†short-circuit protection, and thermal shutdown. An open-drain Power Good (PG) pin is provided.
产品特性
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| MIC261203-ZA-28V, 12A, Hyper Speed Control? Synchronous DC-to-DC Buck Regulator | Data Sheets | 11/05/2015 | 1355KB |
