TPS40055PWPG4

TEXAS INSTRUMENTS  TPS40055PWPG4  直流/直流控制器, 电压模式, 8V至40V, 1路输出, 同步降压, 1MHz, HTSSOP-16

The is a synchronous step-down Buck Controller offers design flexibility with a variety of user-programmable functions, including soft-start, UVLO, operating frequency, voltage feed-forward, high-side current limit and loop compensation. It uses voltage feed-forward control techniques to provide good line regulation over the wide 4:1 input voltage range and fast response to input line transients. Near-constant modulator gain with input variation eases loop compensation. The externally programmable current limit provides pulse-by-pulse current limit, as well as hiccup mode operation using an internal fault counter for longer duration overloads.

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Input voltage feed-forward compensation

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Programmable fixed-frequency up to 1MHz

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Internal gate-drive outputs for high-side and synchronous N-channel MOSFETs

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Thermal shutdown

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Externally synchronizable

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Programmable high-side sense short-circuit protection

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Programmable closed-loop soft-start

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<1% Internal 0.7V Reference

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Green product and no Sb/Br

Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.