The EVM3901-QW-00A evaluation board is designed to demonstrate the capabilities of the MPM3901-AEC1, an easy-to-use, fully integrated, fixed-frequency, synchronous step-down power module with built-in power MOSFETs and an inductor. It can achieve up to 1A of continuous output current (I_OUT) with peak current control for excellent transient response.

The wide 4.5V to 60V input voltage (V_IN) range accommodates a variety of step-down applications in 12V and 24V automotive battery input environments. The MPM3901-AEC1’s 2μA shutdown-mode quiescent current (I_Q) makes it ideal for battery-powered applications.

The MPM3901-AEC1 uses advanced asynchronous modulation (AAM) mode to achieve high efficiency under light-load conditions by scaling down the frequency, which reduces switching and gate driver losses.

Standard features include built-in soft start (SS), enable (EN) control, and power good (PG) indication. A high duty cycle and low-dropout (LDO) mode are provided for automotive cold-crank conditions.

The MPM3901-AEC1 provides over-current protection (OCP) with valley current detection to avoid current runaway. It also provides short-circuit protection (SCP) with hiccup mode, input under-voltage lockout (UVLO), and auto-recovery thermal protection.

The EVM3901-QW-00A is a fully assembled and tested evaluation board. The MPM3901-AEC1 is available in a QFN-19 (4mmx6mm) package with wettable flanks, and is available in AEC-Q100 Grade 1.