TPS40055PWP Wide input (8V-40V) synchronous buck controller with up to 1MHz with output drive/sink current
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The TPS4005x is a high voltage, wide input (8 volt TO40 five), synchronous buck controller. The TPS4005x family offers user-programmable features including soft-start, undervoltage lockout, operating frequency, voltage feed-forward, high-side current limit, loop compensation, and various design flexibility.
The TPS4005x uses voltage feed-forward control technology to provide good linearity regulation over a wide (4:1) input voltage range and fast response to input voltage transients. Nearly constant variation adjusts gain to simplify loop compensation. Externally programmable current limit provides pulse-by-pulse current limit, as well as hiccup mode operation, taking advantage of an internal fault duration long overload counter.