MPQ70150FS-AEC1

MPQ70150FS-AEC1

MPSafe^TM, 3 Bucks, 1 Boost PMIC, Optimized for Low-Noise Radar Applications, AEC-Q100 Qualified

Description

The MPQ70150FS-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.

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

The MPQ70150FS is an ISO 26262 hardware-capable device developed under MPS's advanced MPSafe™ Functional Safety Product Development process, which has been independently certified. Safety mechanisms such as built-in self-testing (BIST) provide high diagnostic coverage.

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), over-voltage protection (OVP), under-voltage protection (UVP), output short-circuit protection (SCP), and thermal shutdown (TSD). SPI and I²C digital interfaces, as well as a one-time programmable (OTP) memory, are integrated for easy configuration and flexibility.

The MPQ70150FS requires minimal external components, and is available in a thermally enhanced TQFN-28 (5mmx5mm) package. It is AEC-Q100 qualified.

Features & Benefits

Configurable Voltage Rails for Radar Monolithic Microwave Integrated Circuits (MMICs):
- 3x Configurable Buck Converters:
  - Output Voltage (V_OUT): 0.8 to 1.9V @ 17.6MHz
  - V_OUT: 0.6V to 3.3V @ 2.2MHz
  - Output Current (I_OUT): Up to 3.5A
- 1x Boost Regulator Outputting 5V @ 500mA
- Configurable Sequencing
- Dynamic Voltage Scaling (DVS)
Superb EMI, Noise, and Ripple Performance:
- Switching Frequencies (f_SW): 2.2MHz to 17.6MHz
- Advanced Frequency Spread Spectrum (FSS) Techniques
- Ultra-Low Noise Performance
Built for Functional Safety:
- Reset, Fault, and Interrupt Pins
- External Voltage Monitor
- Window or Q&A Watchdog Timer (WDT)
- Short-Circuit Protection (SCP), Over-Current Protection (OCP), and Over-Voltage Protection (OVP)
- Redundant Bandgap, Clock, and VCC
- Thermal Warning and Thermal Shutdown (TSD)
- Built-In Self-Testing (BIST)
- Protected Memory and Registers
- ISO 26262 Functional Safety Certified