EVQ3438-QH-0000-00A

The EVQ3438-QH-0000-00A is an evaluation board designed to demonstrate the capabilities of the MPQ3438-0000, a highly integrated, 2.6MHz quasi-fixed frequency, boost converter with a wide 0.8V to 10V input voltage (V_IN) range. The MPQ3438-0000 starts from a V_IN as low as 2.7V, and its integrated, low on-resistance (R_DS(ON)) power MOSFETs support a switching current limit up to 2A. The output voltage (V_OUT) ranges between 1.25 x V_IN and 16V.

The MPQ3438-0000 features an adaptive constant-off-time (COT) control topology to provide fast transient response. An internal frequency loop ensures that the switching frequency (f_SW) is fixed during steady state operation. The cycle-by-cycle current limit on the low-side MOSFET (LS-FET) prevents current runaway, and the high-side MOSFET (HS-FET) eliminates the need for an external Schottky diode.

The MPQ3438-0000 works in power-saving mode (PSM) under light-load conditions, which reduces f_SW and power loss.

Full protection features include configurable input under-voltage lockout (UVLO) and over-temperature protection (OTP).

The EVQ3438-QH-0000-00A is fully assembled and tested. The MPQ3438-0000 is available in a QFN-8 (1.5mmx2mm) package with wettable flanks, and is available in AEC-Q100 Grade 1.