The EVQ8875A-VE-00A is an evaluation board designed to demonstrate the capabilities of the MPQ8875A, a 36V, monolithic, synchronous DC/DC buck-boost converter. The device's wide 2.2V to 36V input voltage range is ideal for multi-purpose automotive and industrial applications. Constant-on-time (COT) control and the integrated quad-switch configuration allow the MPQ8875A to flexibly change between the buck, boost, and buck-boost topologies.
This optimizes performance and efficiency for input voltages above, below, or equal to the output voltage (VOUT). COT also ensures seamless transitions between the adjacent operational regions. The MPQ8875A’s configurable parameters are set via the I2C interface and do not require any additional hardware changes.
The switching frequency (fSW) can be configured between 200kHz and 1MHz or synchronized between 250kHz and 1MHz via an external clock signal. To improve EMI performance, the configurable frequency spread spectrum function can dither fSW periodically.
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 built-in power good (PG) indicator determines whether VOUT is regulated properly.
The EVQ8875A-VE-00A is a fully assembled and tested evaluation board.
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