The LM15851NKE is a single-channel, low-cost, high-efficiency, switched-mode DC-DC step-down voltage regulator designed and manufactured by Texas Instruments. The device is capable of providing up to 8.5A of output current and has a wide input voltage range of 4V to 40V. It also offers various protection functions such as input under/over voltage locked, over-temperature protection, over-current protection, and over-voltage protection. Its low profile, 6-pin package makes it ideal for space-constrained designs.