MPQ70152FS-AEC1

MPQ70152FS-AEC1

MPSafe^TM, Low-Noise PMIC with 2 Bucks and 1 Boost, Optimized for Radar Applications, AEC-Q100 Qualified

Description

The MPQ70152FS-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 two 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 f_SW up to 17.6MHz to enable 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.

Safety mechanisms such as built-in self-testing (BIST) provide high diagnostic coverage, which helps the system achieve its target ASIL rating. It has been 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 is implemented with window and 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 V_IN and V_OUT under-voltage lockout (UVLO), over-voltage protection (OVP), under-voltage protection (UVP), output short-circuit protection (SCP), and thermal shutdown (TSD). Both SPI and I²C digital interfaces, as well as one-time programmable (OTP) memory, are featured for configurability and flexibility.

The MPQ70152FS-AEC1 requires minimal external components, and is available in a thermally enhanced TQFN-28 (5mmx5mm) package. It is available in AEC-Q100 Grade 1.

Features & Benefits

Configurable Voltage Rails for Radar MMICs:
- 2x Configurable Buck Converters
  - Output Voltage (V_OUT): 0.8V 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 Outputs Up to 5V @ 500mA
- Configurable Sequencing
- Dynamic Voltage Scaling (DVS)
Superb EMI, Noise, and Ripple Performance:
- 2.2MHz to 17.6MHz Switching Frequency (f_SW)
- Advanced Frequency Spread Spectrum (FSS) Techniques
- Ultra-Low Noise Performance

Built for Functional Safety:

Reset, Fault, and Interrupt Pins
External Voltage Monitoring
Window or Q&A Watchdog Timer
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
Hardware Capable Up to ASIL-B
ISO 26262 Functional Safety Certified