The EVQ4371-V-1000-00A is an evaluation board designed to demonstrate the capabilities of the MPQ4371-1000, a synchronous, step-down switching regulator with integrated, low on resistance (R_DS(ON)) high-side and low-side power MOSFETs (HS-FET and LS-FET, respectively). The device provides 11A of output current (I_OUT) and employs zero-delay pulse-width modulation (ZDP^TM) control, an MPS-exclusive technology that delivers extremely fast transient response while reducing the need for costly external capacitors.

The wide 3.3V to 36V input voltage (V_IN) range accommodates a variety of step-down applications in automotive input environments. A 1.8μA shutdown mode quiescent current (I_Q) allows for use in battery-powered applications.

High power conversion efficiency across a wide load range is achieved by scaling down the switching frequency (f_SW) under light-load conditions to reduce the switching and gate driving losses.

An open-drain power good (PG) signal indicates whether the output is within 94% to 106% of its nominal voltage.

Frequency foldback helps prevent inductor current (I_L) runaway during start-up. Thermal shutdown provides reliable, fault-tolerant operation.

A high duty cycle and low-dropout (LDO) mode are provided to support automotive cold-crank conditions.

The EVQ4371-V-1000-00A is fully assembled and tested. The MPQ4371-1000 is available in a QFN-23 (4mmx5mm) package with wettable flanks. It is available in AEC-Q100 Grade 1.