The MPQ8835A-AEC1 is a 36V synchronous four-switch buck-boost converter with integrated MOSFETs. The wide 3V to 36V input voltage (V_IN) range makes the device well-suited for multi-purpose automotive and industrial applications.

The device can deliver up to 6A output current (I_OUT) at certain input supply ranges with excellent efficiency. The fully integrated four-switch configuration allows the chip to flexibly change the converter topology between buck, boost, and buck-boost mode. This optimizes performance and efficiency with input voltages that are above, below, or even equal to the output voltage (V_OUT). It also ensures seamless transitions between the adjacent operational regions.

The I²C interface and one-time programmable (OTP) memory provide flexibility for configurable features. The various parameters can be adapted by writing the settings in the device in such a way that no hardware changes are required. The diagnostic functions can also be read by the I²C bus.

The switching frequency (f_SW) can be configured as 280kHz, 420kHz, 600kHz, or 1MHz. In addition, the configurable frequency spread spectrum (FSS) function can dither f_SW periodically for improved EMI performance.

Robust fault protections include input under-voltage lockout (UVLO), input over-voltage protection (OVP), cycle-by-cycle peak current limiting, output OVP, output short-circuit protection (SCP), and thermal shutdown.

The MPQ8835A-AEC1 requires a minimum number of readily available, standard external components. The MPQ8835A-AEC1 is available in a small QFN-19 (4mmx5mm) with wettable flanks, and it is available in AEC-Q100 Grade 1.