4.2 V to 100 V input, 1 A constant frequency current mode synchronous buck regulator TDF10A01PG is a fully integrated and highly efficient sync. buck regulator offering simplicity, performance and ruggedness for a wide variety of applications. Featuring a high-speed current mode control architecture, the TDF10A01PG supports direct step-down conversion from high voltage with unparalleled solution size and efficiency, while constant frequency operation makes the TDF10A01PG an excellent choice for EMI-sensitive applications.