LP8774x-Q1 Automotive Three Buck Converters

Texas Instruments LP8774x-Q1 Automotive Three Buck Converters are engineered to manage the power requirements of the AWR and IWR MMICs in various automotive and industrial radar applications. The LP8774x-Q1 includes three step-down DC/DC converters, a 5V boost converter, and a 1.8V or 3.3V LDO. The LDO is powered by the boost and designed for the xWR I/O supply, while an SPI serial interface enables the device to manage signals. The TI LP8774x-Q1 converters supply a programmable switching frequency of 4.4MHz, 8.8MHz, or 17.6MHz. High switching frequency and low noise across a wide frequency range allow an LDO-free power solution with minimal or no passive filtering. These features improve thermals and transient settling for the MMIC RF rails. The LP8774x-Q1 forces the switching clock into PWM mode for optimal RF performance and can also be synchronized to an external clock.