Monolithic Power Systems (MPS) MPQ8847A Automotive Step-Down Converters

Monolithic Power Systems (MPS) MPQ8847A Automotive Step-Down Converters support up to 6A load current and feature an I2C control interface. The highly integrated, high frequency, synchronous step-down converter offers a 2.7V to 6V input voltage (VIN) supply range and superb load and line regulation. The device provides a constant-frequency hysteretic mode with an extremely fast transient response without loop compensation to achieve high efficiency under light-load conditions.

The MPS MPQ8847A Automotive Step-Down Converters can control the output voltage (V_OUT) via a 3.4Mbps I²C interface. The voltage range is adjustable from 0.6V to 1.235V in 5mV steps. The I²C interface configures the VOUT slew rate, switching frequency (f_SW), and power-save mode. Full protection features include internal soft start, over-current protection (OCP), and thermal shutdown.

The MPQ8847A requires a minimal number of standard external components and is housed in a compact QFN-14 (2.5mm x 3mm) package.

Features

Flexible with I²C interface:
- I²C-Configurable Output Voltage (V_OUT)
- Range from 0.6V to 1.235V in 5mV steps
- Adjustable Switching Frequency (f_SW) from 0.85MHz to 2.2MHz
- I²C-Compatible interface up to 3.4Mbps
- Power-save mode selectable via I²C
Designed for heavy loads:
- Up to 6A load current
- Internal 40mΩ high-side and 22mΩ
- Low-side power MOSFETs

Additional features:
- 2.7V to 6V Input Voltage (V_IN) range
- Internal 165µs soft start
- Power Good (PG) indicator
- Current overload and thermal shutdown protection
- Available in a QFN-14 (2.5mm x 3mm) package
- Available in AEC-Q100 Grade 1

Applications

Automotive infotainment systems
Automotive telematics systems
Advanced Driver Assistance Systems (ADASs)

Automotive applications
Processor core supplies

Monolithic Power Systems (MPS) MPQ8847A Automotive Step-Down Converters

Features

Applications

Typical Application

husseinkey ELECTRONICS®

COMPANY