The MPQ70153FS-AEC1 is a low-noise, high switching frequency (f_SW) power management integrated circuit (PMIC) optimized for powering monolithic microwave integrated circuits (MMICs) in automotive radar applications.

The device includes three individual step-down DC/DC converters with excellent transient performance and high efficiency. The step-down DC/DC converters support configurable f_SW up to 17.6MHz to enable low-dropout regulator (LDO) free, low-noise power solutions with minimal or no passive filtering. A configurable frequency spread spectrum (FSS) function can dither f_SW for improved EMI performance.

Safety mechanisms such as built-in self-testing (BIST) provide high diagnostic coverage, which help the system achieve its target ASIL rating. This part was developed under MPS's advanced MPSafe^TM Functional Safety Product Development process, which has been independently certified to meet ISO 26262 guidelines.

A configurable watchdog timer (WDT) is implemented with window and question & answer (Q&A) modes. Built-in voltage monitoring is featured for the input voltage (V_IN) and output voltage (V_OUT) rails. An additional voltage monitor is included to monitor an external rail.

Protection features include input and output under-voltage lockout (UVLO) protection, over-voltage protection (OVP), under-voltage protection (UVP), output short-circuit protection (SCP), and thermal shutdown (TSD). The MPQ70153FS-AEC1 integrates SPI and I²C digital interfaces, as well as a one-time programmable (OTP) memory for configurability and flexibility.

The MPQ70153FS-AEC1 requires minimal external components and is available in a thermally enhanced TQFN-28 (5mmx5mm) package. It is available in AEC-Q100 Grade 1.