The ISL6341, ISL6341A, ISL6341B, ISL6341C makes simple work out of implementing a complete control and protection scheme for a DC/DC stepdown converter driving N-Channel MOSFETs in a synchronous buck topology. Sinceit can work with either 5V or 12V supplies, this one family ofIC’s can be used in a wide variety of applications within asystem. It integrates the control, gate drivers, outputadjustment, monitoring and protection functions into a single10 Ld Thin DFN package.The ISL6341, ISL6341A, ISL6341B, ISL6341C (hereafterreferred to as “ISL6341x”, except as needed) provides singlefeedback loop, voltage-mode control with fast transientresponse. The output voltage can be precisely regulated to aslow as 0.8V, with a maximum tolerance of ±0.8%over-temperature and line voltage variations. A fixed frequencyoscillator and wide duty cycle range reduces design complexity,while balancing typical application cost and efficiency. The frequency, duty cycle and OCP response are the only differences among the ISL6341x versions. See Table 1.
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