LM3743 Datasheet (National Semiconductor) - N-Channel FET Synchronous Buck Controller

LM3743, N-Channel FET Synchronous Buck Controller

The LM3743 is a voltage mode PWM buck controller which implements synchronous rectification.

It provides a low cost, fault tolerant, and efficient point of load solution.

To reduce component count several parameters are fixed, such as switching frequency and the short circuit protection level.

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LM3743 Features

* 1.6Ω of pull-up resistance and 1Ω of pull-down drive resistance for high power density and very efficient power processing. n Reference accuracy: ± 1.75%, over full temperature and input voltage range n Low-side sensing programmable current limit n Fixed high-side sensing for supplemental short-circ