The RT6257AHGJ6F is a synchronous buck DC-to-DC converter from Richtek with a switching frequency of 500kHz. It is offered in a TSOT-23-6 package, which is a miniature, 6-pin JEDEC-standard surface-mount technology (SMT) package. Its features include a wide input voltage range, output voltage range of 0.8V to 5.5V, integrated dual N-MOSFET, EMI-suppressible operating frequency, low quiescent current, current mode control for improved line and load regulation, output current of up to 1.4A, differential current sense, over-current and short-circuit protection, soft-start, and adjustable switching frequency. Its applications include laptop power management, smart phone power management, tablet computer power management, automotive systems, industrial applications, and consumer electronics.